./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bf978f501147b566a0f6f3e817c934f24352e71 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4bf978f501147b566a0f6f3e817c934f24352e71 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:22:55,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:22:55,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:22:55,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:22:55,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:22:55,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:22:55,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:22:55,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:22:55,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:22:55,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:22:55,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:22:55,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:22:55,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:22:55,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:22:55,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:22:55,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:22:55,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:22:55,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:22:55,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:22:55,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:22:55,153 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:22:55,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:22:55,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:22:55,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:22:55,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:22:55,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:22:55,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:22:55,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:22:55,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:22:55,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:22:55,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:22:55,195 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:22:55,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:22:55,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:22:55,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:22:55,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:22:55,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:22:55,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:22:55,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:22:55,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:22:55,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:22:55,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-29 20:22:55,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:22:55,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:22:55,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:22:55,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:22:55,249 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:22:55,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:22:55,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:22:55,250 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:22:55,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:22:55,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:22:55,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:22:55,251 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 20:22:55,252 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 20:22:55,252 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 20:22:55,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:22:55,253 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 20:22:55,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:22:55,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:22:55,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:22:55,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:22:55,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:22:55,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:22:55,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:22:55,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:22:55,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:22:55,258 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:22:55,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:22:55,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:22:55,260 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf978f501147b566a0f6f3e817c934f24352e71 [2020-11-29 20:22:55,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:22:55,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:22:55,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:22:55,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:22:55,708 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:22:55,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-11-29 20:22:55,827 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data/e3ef647f3/3817499a976f439cb3d2c73a10e9b552/FLAG3ecb01c54 [2020-11-29 20:22:56,528 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:22:56,529 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-11-29 20:22:56,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data/e3ef647f3/3817499a976f439cb3d2c73a10e9b552/FLAG3ecb01c54 [2020-11-29 20:22:56,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data/e3ef647f3/3817499a976f439cb3d2c73a10e9b552 [2020-11-29 20:22:56,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:22:56,804 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 20:22:56,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:22:56,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:22:56,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:22:56,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:22:56" (1/1) ... [2020-11-29 20:22:56,815 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484f4b7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:56, skipping insertion in model container [2020-11-29 20:22:56,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:22:56" (1/1) ... [2020-11-29 20:22:56,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:22:56,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:22:57,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:22:57,323 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:22:57,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:22:57,455 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:22:57,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57 WrapperNode [2020-11-29 20:22:57,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:22:57,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:22:57,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:22:57,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:22:57,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (1/1) ... [2020-11-29 20:22:57,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (1/1) ... [2020-11-29 20:22:57,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (1/1) ... [2020-11-29 20:22:57,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (1/1) ... [2020-11-29 20:22:57,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (1/1) ... [2020-11-29 20:22:57,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (1/1) ... [2020-11-29 20:22:57,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (1/1) ... [2020-11-29 20:22:57,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:22:57,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:22:57,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:22:57,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:22:57,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/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 20:22:57,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 20:22:57,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:22:57,698 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-29 20:22:57,698 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-11-29 20:22:57,698 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-11-29 20:22:57,699 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-11-29 20:22:57,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 20:22:57,699 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-11-29 20:22:57,699 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-11-29 20:22:57,699 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-11-29 20:22:57,700 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-11-29 20:22:57,700 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-11-29 20:22:57,700 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-11-29 20:22:57,700 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-11-29 20:22:57,701 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-11-29 20:22:57,701 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-11-29 20:22:57,701 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-11-29 20:22:57,701 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-11-29 20:22:57,702 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-11-29 20:22:57,702 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 20:22:57,702 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-29 20:22:57,702 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-29 20:22:57,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:22:57,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-11-29 20:22:57,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 20:22:57,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-11-29 20:22:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-11-29 20:22:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-11-29 20:22:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-11-29 20:22:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-11-29 20:22:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-11-29 20:22:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-11-29 20:22:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-11-29 20:22:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-11-29 20:22:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-11-29 20:22:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-11-29 20:22:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-11-29 20:22:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-11-29 20:22:57,706 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-11-29 20:22:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-11-29 20:22:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 20:22:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-11-29 20:22:57,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 20:22:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:22:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:22:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:22:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:22:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:22:58,156 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:22:58,481 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-11-29 20:22:58,481 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-11-29 20:22:58,492 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:22:58,590 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-11-29 20:22:58,591 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-11-29 20:22:58,722 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:22:58,772 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-11-29 20:22:58,772 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-11-29 20:22:58,786 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:22:58,973 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-11-29 20:22:58,973 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-11-29 20:22:58,979 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:22:59,039 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-11-29 20:22:59,039 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-11-29 20:22:59,050 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:22:59,107 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-11-29 20:22:59,107 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-11-29 20:22:59,197 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:22:59,198 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-29 20:22:59,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:22:59 BoogieIcfgContainer [2020-11-29 20:22:59,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:22:59,203 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:22:59,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:22:59,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:22:59,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:22:56" (1/3) ... [2020-11-29 20:22:59,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517a685c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:22:59, skipping insertion in model container [2020-11-29 20:22:59,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:22:57" (2/3) ... [2020-11-29 20:22:59,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@517a685c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:22:59, skipping insertion in model container [2020-11-29 20:22:59,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:22:59" (3/3) ... [2020-11-29 20:22:59,214 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-11-29 20:22:59,229 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:22:59,236 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 20:22:59,252 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 20:22:59,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:22:59,280 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 20:22:59,281 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:22:59,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:22:59,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:22:59,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:22:59,282 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:22:59,282 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:22:59,309 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-11-29 20:22:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:22:59,320 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:22:59,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:22:59,322 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:22:59,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:22:59,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1840155786, now seen corresponding path program 1 times [2020-11-29 20:22:59,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:22:59,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713912644] [2020-11-29 20:22:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:22:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:59,865 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:22:59,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:22:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:22:59,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:00,032 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 20:23:00,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713912644] [2020-11-29 20:23:00,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:00,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 20:23:00,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170908193] [2020-11-29 20:23:00,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:23:00,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:00,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:23:00,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:23:00,072 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 4 states. [2020-11-29 20:23:01,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:01,394 INFO L93 Difference]: Finished difference Result 267 states and 386 transitions. [2020-11-29 20:23:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:23:01,396 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-29 20:23:01,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:01,414 INFO L225 Difference]: With dead ends: 267 [2020-11-29 20:23:01,414 INFO L226 Difference]: Without dead ends: 260 [2020-11-29 20:23:01,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:23:01,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-11-29 20:23:01,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 232. [2020-11-29 20:23:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-29 20:23:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 328 transitions. [2020-11-29 20:23:01,571 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 328 transitions. Word has length 15 [2020-11-29 20:23:01,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:01,573 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 328 transitions. [2020-11-29 20:23:01,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:23:01,579 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 328 transitions. [2020-11-29 20:23:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 20:23:01,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:01,583 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 20:23:01,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:23:01,584 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:01,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:01,589 INFO L82 PathProgramCache]: Analyzing trace with hash 939288791, now seen corresponding path program 1 times [2020-11-29 20:23:01,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:01,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413833520] [2020-11-29 20:23:01,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:01,942 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:01,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:02,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:02,109 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 20:23:02,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413833520] [2020-11-29 20:23:02,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:02,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 20:23:02,111 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262056204] [2020-11-29 20:23:02,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:23:02,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:02,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:23:02,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:23:02,115 INFO L87 Difference]: Start difference. First operand 232 states and 328 transitions. Second operand 5 states. [2020-11-29 20:23:03,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:03,675 INFO L93 Difference]: Finished difference Result 260 states and 368 transitions. [2020-11-29 20:23:03,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:23:03,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2020-11-29 20:23:03,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:03,680 INFO L225 Difference]: With dead ends: 260 [2020-11-29 20:23:03,680 INFO L226 Difference]: Without dead ends: 260 [2020-11-29 20:23:03,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:23:03,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-11-29 20:23:03,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 232. [2020-11-29 20:23:03,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-29 20:23:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2020-11-29 20:23:03,721 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 21 [2020-11-29 20:23:03,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:03,722 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2020-11-29 20:23:03,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:23:03,722 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2020-11-29 20:23:03,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 20:23:03,726 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:03,726 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:03,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:23:03,727 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:03,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:03,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1222215616, now seen corresponding path program 1 times [2020-11-29 20:23:03,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:03,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166056302] [2020-11-29 20:23:03,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:04,032 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:04,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:04,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:04,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:04,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:04,252 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 20:23:04,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166056302] [2020-11-29 20:23:04,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:04,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:23:04,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68866172] [2020-11-29 20:23:04,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:23:04,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:04,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:23:04,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:23:04,262 INFO L87 Difference]: Start difference. First operand 232 states and 327 transitions. Second operand 6 states. [2020-11-29 20:23:04,403 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-29 20:23:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:06,440 INFO L93 Difference]: Finished difference Result 352 states and 480 transitions. [2020-11-29 20:23:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:23:06,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-11-29 20:23:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:06,446 INFO L225 Difference]: With dead ends: 352 [2020-11-29 20:23:06,446 INFO L226 Difference]: Without dead ends: 351 [2020-11-29 20:23:06,447 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:23:06,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2020-11-29 20:23:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 305. [2020-11-29 20:23:06,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-11-29 20:23:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 416 transitions. [2020-11-29 20:23:06,490 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 416 transitions. Word has length 29 [2020-11-29 20:23:06,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:06,490 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 416 transitions. [2020-11-29 20:23:06,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:23:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 416 transitions. [2020-11-29 20:23:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 20:23:06,493 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:06,493 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:06,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:23:06,494 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:06,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:06,495 INFO L82 PathProgramCache]: Analyzing trace with hash -159057791, now seen corresponding path program 1 times [2020-11-29 20:23:06,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:06,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456960318] [2020-11-29 20:23:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:06,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:06,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:06,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:06,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:06,930 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 20:23:06,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456960318] [2020-11-29 20:23:06,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:06,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:23:06,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616117003] [2020-11-29 20:23:06,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:23:06,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:06,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:23:06,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:23:06,938 INFO L87 Difference]: Start difference. First operand 305 states and 416 transitions. Second operand 6 states. [2020-11-29 20:23:07,092 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-29 20:23:08,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:08,366 INFO L93 Difference]: Finished difference Result 370 states and 496 transitions. [2020-11-29 20:23:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:23:08,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-11-29 20:23:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:08,378 INFO L225 Difference]: With dead ends: 370 [2020-11-29 20:23:08,378 INFO L226 Difference]: Without dead ends: 370 [2020-11-29 20:23:08,378 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:23:08,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-11-29 20:23:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 345. [2020-11-29 20:23:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-11-29 20:23:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 467 transitions. [2020-11-29 20:23:08,432 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 467 transitions. Word has length 29 [2020-11-29 20:23:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:08,433 INFO L481 AbstractCegarLoop]: Abstraction has 345 states and 467 transitions. [2020-11-29 20:23:08,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:23:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 467 transitions. [2020-11-29 20:23:08,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-29 20:23:08,449 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:08,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:08,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:23:08,450 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:08,459 INFO L82 PathProgramCache]: Analyzing trace with hash -164502744, now seen corresponding path program 1 times [2020-11-29 20:23:08,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:08,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723467878] [2020-11-29 20:23:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:08,701 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:08,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:08,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:08,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:08,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:08,840 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 20:23:08,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723467878] [2020-11-29 20:23:08,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:08,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 20:23:08,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722687507] [2020-11-29 20:23:08,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:23:08,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:08,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:23:08,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:23:08,846 INFO L87 Difference]: Start difference. First operand 345 states and 467 transitions. Second operand 6 states. [2020-11-29 20:23:09,041 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-29 20:23:10,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:10,468 INFO L93 Difference]: Finished difference Result 344 states and 464 transitions. [2020-11-29 20:23:10,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:23:10,469 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-11-29 20:23:10,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:10,473 INFO L225 Difference]: With dead ends: 344 [2020-11-29 20:23:10,473 INFO L226 Difference]: Without dead ends: 344 [2020-11-29 20:23:10,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-29 20:23:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-11-29 20:23:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2020-11-29 20:23:10,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-11-29 20:23:10,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 464 transitions. [2020-11-29 20:23:10,513 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 464 transitions. Word has length 39 [2020-11-29 20:23:10,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:10,515 INFO L481 AbstractCegarLoop]: Abstraction has 344 states and 464 transitions. [2020-11-29 20:23:10,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:23:10,515 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 464 transitions. [2020-11-29 20:23:10,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-29 20:23:10,520 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:10,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:10,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:23:10,521 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:10,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:10,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1784923219, now seen corresponding path program 1 times [2020-11-29 20:23:10,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:10,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912489669] [2020-11-29 20:23:10,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:10,776 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:10,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:10,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:10,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:10,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-29 20:23:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:10,926 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 20:23:10,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912489669] [2020-11-29 20:23:10,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:10,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 20:23:10,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519913670] [2020-11-29 20:23:10,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:23:10,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:10,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:23:10,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:23:10,930 INFO L87 Difference]: Start difference. First operand 344 states and 464 transitions. Second operand 8 states. [2020-11-29 20:23:11,130 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-29 20:23:12,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:12,770 INFO L93 Difference]: Finished difference Result 327 states and 433 transitions. [2020-11-29 20:23:12,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 20:23:12,771 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-11-29 20:23:12,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:12,774 INFO L225 Difference]: With dead ends: 327 [2020-11-29 20:23:12,775 INFO L226 Difference]: Without dead ends: 327 [2020-11-29 20:23:12,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:23:12,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-29 20:23:12,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 305. [2020-11-29 20:23:12,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-11-29 20:23:12,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 407 transitions. [2020-11-29 20:23:12,795 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 407 transitions. Word has length 47 [2020-11-29 20:23:12,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:12,796 INFO L481 AbstractCegarLoop]: Abstraction has 305 states and 407 transitions. [2020-11-29 20:23:12,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:23:12,796 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 407 transitions. [2020-11-29 20:23:12,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-29 20:23:12,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:12,799 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:12,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:23:12,800 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:12,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:12,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1743771521, now seen corresponding path program 1 times [2020-11-29 20:23:12,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:12,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614025720] [2020-11-29 20:23:12,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:12,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:13,151 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:13,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:13,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:13,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:13,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-29 20:23:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:13,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-29 20:23:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:13,582 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 20:23:13,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614025720] [2020-11-29 20:23:13,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:13,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-29 20:23:13,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744648615] [2020-11-29 20:23:13,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 20:23:13,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:13,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 20:23:13,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:23:13,597 INFO L87 Difference]: Start difference. First operand 305 states and 407 transitions. Second operand 12 states. [2020-11-29 20:23:13,787 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-29 20:23:15,240 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-11-29 20:23:15,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:15,478 INFO L93 Difference]: Finished difference Result 328 states and 432 transitions. [2020-11-29 20:23:15,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 20:23:15,479 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 46 [2020-11-29 20:23:15,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:15,482 INFO L225 Difference]: With dead ends: 328 [2020-11-29 20:23:15,482 INFO L226 Difference]: Without dead ends: 327 [2020-11-29 20:23:15,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-11-29 20:23:15,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-29 20:23:15,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-11-29 20:23:15,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-29 20:23:15,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 426 transitions. [2020-11-29 20:23:15,516 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 426 transitions. Word has length 46 [2020-11-29 20:23:15,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:15,516 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 426 transitions. [2020-11-29 20:23:15,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 20:23:15,517 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 426 transitions. [2020-11-29 20:23:15,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-29 20:23:15,520 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:15,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:15,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 20:23:15,521 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:15,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:15,522 INFO L82 PathProgramCache]: Analyzing trace with hash -651523847, now seen corresponding path program 1 times [2020-11-29 20:23:15,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:15,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171613605] [2020-11-29 20:23:15,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:15,839 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:15,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:15,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:15,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:16,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-29 20:23:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:16,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-29 20:23:16,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:16,181 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 20:23:16,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171613605] [2020-11-29 20:23:16,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:16,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-29 20:23:16,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682230334] [2020-11-29 20:23:16,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 20:23:16,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:16,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 20:23:16,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:23:16,194 INFO L87 Difference]: Start difference. First operand 321 states and 426 transitions. Second operand 12 states. [2020-11-29 20:23:16,377 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-29 20:23:17,956 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-11-29 20:23:18,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:18,174 INFO L93 Difference]: Finished difference Result 327 states and 430 transitions. [2020-11-29 20:23:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 20:23:18,175 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 47 [2020-11-29 20:23:18,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:18,178 INFO L225 Difference]: With dead ends: 327 [2020-11-29 20:23:18,178 INFO L226 Difference]: Without dead ends: 327 [2020-11-29 20:23:18,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-11-29 20:23:18,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-11-29 20:23:18,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 321. [2020-11-29 20:23:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-11-29 20:23:18,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 425 transitions. [2020-11-29 20:23:18,195 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 425 transitions. Word has length 47 [2020-11-29 20:23:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:18,195 INFO L481 AbstractCegarLoop]: Abstraction has 321 states and 425 transitions. [2020-11-29 20:23:18,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 20:23:18,196 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 425 transitions. [2020-11-29 20:23:18,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-29 20:23:18,198 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:18,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:18,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 20:23:18,198 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:18,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:18,199 INFO L82 PathProgramCache]: Analyzing trace with hash -975698037, now seen corresponding path program 1 times [2020-11-29 20:23:18,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:18,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461067761] [2020-11-29 20:23:18,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:18,377 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:18,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:18,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:18,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:18,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-29 20:23:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:18,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-29 20:23:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:18,590 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 20:23:18,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461067761] [2020-11-29 20:23:18,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:18,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 20:23:18,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960950595] [2020-11-29 20:23:18,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:23:18,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:18,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:23:18,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:23:18,593 INFO L87 Difference]: Start difference. First operand 321 states and 425 transitions. Second operand 8 states. [2020-11-29 20:23:18,735 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-29 20:23:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:19,711 INFO L93 Difference]: Finished difference Result 315 states and 413 transitions. [2020-11-29 20:23:19,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 20:23:19,712 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-11-29 20:23:19,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:19,715 INFO L225 Difference]: With dead ends: 315 [2020-11-29 20:23:19,715 INFO L226 Difference]: Without dead ends: 273 [2020-11-29 20:23:19,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:23:19,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-11-29 20:23:19,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 243. [2020-11-29 20:23:19,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-11-29 20:23:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 322 transitions. [2020-11-29 20:23:19,726 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 322 transitions. Word has length 48 [2020-11-29 20:23:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:19,727 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 322 transitions. [2020-11-29 20:23:19,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:23:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 322 transitions. [2020-11-29 20:23:19,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 20:23:19,729 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:19,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:19,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 20:23:19,730 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:19,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:19,731 INFO L82 PathProgramCache]: Analyzing trace with hash 720522391, now seen corresponding path program 1 times [2020-11-29 20:23:19,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:19,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263721731] [2020-11-29 20:23:19,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:19,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:19,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:20,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:20,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-11-29 20:23:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:20,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-29 20:23:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:20,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-11-29 20:23:20,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:20,077 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 20:23:20,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263721731] [2020-11-29 20:23:20,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:20,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 20:23:20,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039096601] [2020-11-29 20:23:20,080 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:23:20,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:20,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:23:20,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:23:20,082 INFO L87 Difference]: Start difference. First operand 243 states and 322 transitions. Second operand 8 states. [2020-11-29 20:23:20,236 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-29 20:23:21,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:21,064 INFO L93 Difference]: Finished difference Result 241 states and 318 transitions. [2020-11-29 20:23:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 20:23:21,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-11-29 20:23:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:21,066 INFO L225 Difference]: With dead ends: 241 [2020-11-29 20:23:21,066 INFO L226 Difference]: Without dead ends: 241 [2020-11-29 20:23:21,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-11-29 20:23:21,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-11-29 20:23:21,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-11-29 20:23:21,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-29 20:23:21,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2020-11-29 20:23:21,077 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 54 [2020-11-29 20:23:21,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:21,078 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2020-11-29 20:23:21,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:23:21,078 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2020-11-29 20:23:21,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-29 20:23:21,080 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:21,080 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:21,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 20:23:21,081 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:21,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:21,082 INFO L82 PathProgramCache]: Analyzing trace with hash -183905982, now seen corresponding path program 1 times [2020-11-29 20:23:21,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:21,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790499934] [2020-11-29 20:23:21,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:21,308 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:21,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:21,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:21,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:21,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-29 20:23:21,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-29 20:23:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:21,586 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 20:23:21,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790499934] [2020-11-29 20:23:21,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:21,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 20:23:21,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971329797] [2020-11-29 20:23:21,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 20:23:21,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:21,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 20:23:21,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-29 20:23:21,590 INFO L87 Difference]: Start difference. First operand 241 states and 318 transitions. Second operand 11 states. [2020-11-29 20:23:21,749 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-29 20:23:22,103 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-29 20:23:22,403 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-29 20:23:22,884 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-11-29 20:23:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:23,686 INFO L93 Difference]: Finished difference Result 245 states and 319 transitions. [2020-11-29 20:23:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-29 20:23:23,687 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-11-29 20:23:23,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:23,688 INFO L225 Difference]: With dead ends: 245 [2020-11-29 20:23:23,689 INFO L226 Difference]: Without dead ends: 245 [2020-11-29 20:23:23,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2020-11-29 20:23:23,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-11-29 20:23:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 241. [2020-11-29 20:23:23,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-29 20:23:23,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 316 transitions. [2020-11-29 20:23:23,700 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 316 transitions. Word has length 52 [2020-11-29 20:23:23,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:23,700 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 316 transitions. [2020-11-29 20:23:23,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 20:23:23,700 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 316 transitions. [2020-11-29 20:23:23,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 20:23:23,703 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:23,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:23,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 20:23:23,704 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:23,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:23,704 INFO L82 PathProgramCache]: Analyzing trace with hash -599457753, now seen corresponding path program 1 times [2020-11-29 20:23:23,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:23,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477106666] [2020-11-29 20:23:23,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:23,872 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:23,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:23,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:24,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-29 20:23:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:24,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-29 20:23:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:24,110 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 20:23:24,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477106666] [2020-11-29 20:23:24,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:24,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 20:23:24,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058612839] [2020-11-29 20:23:24,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:23:24,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:24,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:23:24,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:23:24,122 INFO L87 Difference]: Start difference. First operand 241 states and 316 transitions. Second operand 8 states. [2020-11-29 20:23:25,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:25,473 INFO L93 Difference]: Finished difference Result 251 states and 327 transitions. [2020-11-29 20:23:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 20:23:25,474 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-11-29 20:23:25,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:25,476 INFO L225 Difference]: With dead ends: 251 [2020-11-29 20:23:25,476 INFO L226 Difference]: Without dead ends: 251 [2020-11-29 20:23:25,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-29 20:23:25,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-11-29 20:23:25,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 244. [2020-11-29 20:23:25,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-29 20:23:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 320 transitions. [2020-11-29 20:23:25,487 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 320 transitions. Word has length 54 [2020-11-29 20:23:25,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:25,487 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 320 transitions. [2020-11-29 20:23:25,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:23:25,487 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 320 transitions. [2020-11-29 20:23:25,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 20:23:25,489 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:25,489 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:25,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 20:23:25,490 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:25,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:25,491 INFO L82 PathProgramCache]: Analyzing trace with hash 2006565801, now seen corresponding path program 1 times [2020-11-29 20:23:25,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:25,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687451860] [2020-11-29 20:23:25,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:25,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:25,753 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:25,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:25,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:25,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:25,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-29 20:23:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:25,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-29 20:23:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:26,017 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 20:23:26,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687451860] [2020-11-29 20:23:26,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:26,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-29 20:23:26,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896200972] [2020-11-29 20:23:26,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 20:23:26,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:26,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 20:23:26,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-29 20:23:26,022 INFO L87 Difference]: Start difference. First operand 244 states and 320 transitions. Second operand 11 states. [2020-11-29 20:23:26,202 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-11-29 20:23:26,558 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-11-29 20:23:27,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:27,642 INFO L93 Difference]: Finished difference Result 287 states and 367 transitions. [2020-11-29 20:23:27,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 20:23:27,643 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2020-11-29 20:23:27,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:27,646 INFO L225 Difference]: With dead ends: 287 [2020-11-29 20:23:27,646 INFO L226 Difference]: Without dead ends: 287 [2020-11-29 20:23:27,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-11-29 20:23:27,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-11-29 20:23:27,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 278. [2020-11-29 20:23:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-11-29 20:23:27,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 359 transitions. [2020-11-29 20:23:27,658 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 359 transitions. Word has length 54 [2020-11-29 20:23:27,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:27,659 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 359 transitions. [2020-11-29 20:23:27,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 20:23:27,659 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 359 transitions. [2020-11-29 20:23:27,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 20:23:27,661 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:27,661 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:27,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-29 20:23:27,662 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:27,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:27,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2035891929, now seen corresponding path program 1 times [2020-11-29 20:23:27,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:27,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285395512] [2020-11-29 20:23:27,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:27,886 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:27,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:27,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:28,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:28,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-11-29 20:23:28,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:28,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-29 20:23:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:28,137 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 20:23:28,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285395512] [2020-11-29 20:23:28,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:28,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-29 20:23:28,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680431873] [2020-11-29 20:23:28,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 20:23:28,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:28,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 20:23:28,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:23:28,142 INFO L87 Difference]: Start difference. First operand 278 states and 359 transitions. Second operand 12 states. [2020-11-29 20:23:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:29,994 INFO L93 Difference]: Finished difference Result 292 states and 373 transitions. [2020-11-29 20:23:29,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 20:23:29,995 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 54 [2020-11-29 20:23:29,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:29,997 INFO L225 Difference]: With dead ends: 292 [2020-11-29 20:23:29,998 INFO L226 Difference]: Without dead ends: 239 [2020-11-29 20:23:29,998 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-11-29 20:23:29,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-29 20:23:30,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-11-29 20:23:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-11-29 20:23:30,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 309 transitions. [2020-11-29 20:23:30,009 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 309 transitions. Word has length 54 [2020-11-29 20:23:30,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:30,010 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 309 transitions. [2020-11-29 20:23:30,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 20:23:30,010 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 309 transitions. [2020-11-29 20:23:30,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-29 20:23:30,012 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:30,013 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:30,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-29 20:23:30,013 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:30,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:30,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1854515637, now seen corresponding path program 1 times [2020-11-29 20:23:30,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:30,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054041676] [2020-11-29 20:23:30,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:30,220 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:30,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:30,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:30,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-11-29 20:23:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:30,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-29 20:23:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:30,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-11-29 20:23:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:30,542 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 20:23:30,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054041676] [2020-11-29 20:23:30,543 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:30,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-29 20:23:30,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044527579] [2020-11-29 20:23:30,544 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 20:23:30,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:30,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 20:23:30,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:23:30,545 INFO L87 Difference]: Start difference. First operand 239 states and 309 transitions. Second operand 12 states. [2020-11-29 20:23:30,821 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-29 20:23:31,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:31,922 INFO L93 Difference]: Finished difference Result 238 states and 305 transitions. [2020-11-29 20:23:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 20:23:31,923 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 58 [2020-11-29 20:23:31,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:31,925 INFO L225 Difference]: With dead ends: 238 [2020-11-29 20:23:31,925 INFO L226 Difference]: Without dead ends: 238 [2020-11-29 20:23:31,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-11-29 20:23:31,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-11-29 20:23:31,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 232. [2020-11-29 20:23:31,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-29 20:23:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 299 transitions. [2020-11-29 20:23:31,936 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 299 transitions. Word has length 58 [2020-11-29 20:23:31,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:31,936 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 299 transitions. [2020-11-29 20:23:31,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 20:23:31,936 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 299 transitions. [2020-11-29 20:23:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-29 20:23:31,938 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:31,938 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:31,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-29 20:23:31,939 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:31,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:31,939 INFO L82 PathProgramCache]: Analyzing trace with hash 2139153865, now seen corresponding path program 1 times [2020-11-29 20:23:31,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:31,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180677503] [2020-11-29 20:23:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:32,113 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:32,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:32,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:32,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:32,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-29 20:23:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:32,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:32,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:32,316 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 20:23:32,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180677503] [2020-11-29 20:23:32,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:32,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 20:23:32,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235669481] [2020-11-29 20:23:32,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:23:32,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:32,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:23:32,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:23:32,319 INFO L87 Difference]: Start difference. First operand 232 states and 299 transitions. Second operand 8 states. [2020-11-29 20:23:32,951 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-29 20:23:33,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:33,424 INFO L93 Difference]: Finished difference Result 251 states and 326 transitions. [2020-11-29 20:23:33,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 20:23:33,425 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2020-11-29 20:23:33,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:33,427 INFO L225 Difference]: With dead ends: 251 [2020-11-29 20:23:33,427 INFO L226 Difference]: Without dead ends: 251 [2020-11-29 20:23:33,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:23:33,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-11-29 20:23:33,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 238. [2020-11-29 20:23:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-11-29 20:23:33,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 307 transitions. [2020-11-29 20:23:33,439 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 307 transitions. Word has length 55 [2020-11-29 20:23:33,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:33,439 INFO L481 AbstractCegarLoop]: Abstraction has 238 states and 307 transitions. [2020-11-29 20:23:33,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:23:33,439 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 307 transitions. [2020-11-29 20:23:33,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-29 20:23:33,441 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:33,441 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:33,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-29 20:23:33,442 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:33,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:33,442 INFO L82 PathProgramCache]: Analyzing trace with hash 559367369, now seen corresponding path program 1 times [2020-11-29 20:23:33,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:33,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124104495] [2020-11-29 20:23:33,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:33,621 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:33,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:33,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:33,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:33,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:33,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-29 20:23:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:33,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:33,972 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 20:23:33,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124104495] [2020-11-29 20:23:33,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:33,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-29 20:23:33,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914514059] [2020-11-29 20:23:33,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 20:23:33,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:33,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 20:23:33,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-11-29 20:23:33,978 INFO L87 Difference]: Start difference. First operand 238 states and 307 transitions. Second operand 14 states. [2020-11-29 20:23:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:35,324 INFO L93 Difference]: Finished difference Result 260 states and 329 transitions. [2020-11-29 20:23:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-29 20:23:35,325 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2020-11-29 20:23:35,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:35,327 INFO L225 Difference]: With dead ends: 260 [2020-11-29 20:23:35,327 INFO L226 Difference]: Without dead ends: 232 [2020-11-29 20:23:35,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-11-29 20:23:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-11-29 20:23:35,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-11-29 20:23:35,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-29 20:23:35,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 298 transitions. [2020-11-29 20:23:35,338 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 298 transitions. Word has length 55 [2020-11-29 20:23:35,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:35,339 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 298 transitions. [2020-11-29 20:23:35,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 20:23:35,339 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 298 transitions. [2020-11-29 20:23:35,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-11-29 20:23:35,341 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:35,341 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:35,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-29 20:23:35,342 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:35,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:35,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1480194668, now seen corresponding path program 1 times [2020-11-29 20:23:35,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:35,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394426571] [2020-11-29 20:23:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:35,505 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:35,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:35,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:35,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:35,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-29 20:23:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:35,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-29 20:23:35,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:35,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 20:23:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:35,756 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 20:23:35,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394426571] [2020-11-29 20:23:35,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:35,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-29 20:23:35,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527690815] [2020-11-29 20:23:35,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:23:35,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:35,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:23:35,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:23:35,761 INFO L87 Difference]: Start difference. First operand 232 states and 298 transitions. Second operand 8 states. [2020-11-29 20:23:36,142 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-29 20:23:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:37,013 INFO L93 Difference]: Finished difference Result 233 states and 298 transitions. [2020-11-29 20:23:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:23:37,014 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2020-11-29 20:23:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:37,016 INFO L225 Difference]: With dead ends: 233 [2020-11-29 20:23:37,016 INFO L226 Difference]: Without dead ends: 231 [2020-11-29 20:23:37,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:23:37,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-11-29 20:23:37,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-11-29 20:23:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-11-29 20:23:37,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 293 transitions. [2020-11-29 20:23:37,026 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 293 transitions. Word has length 61 [2020-11-29 20:23:37,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:37,026 INFO L481 AbstractCegarLoop]: Abstraction has 231 states and 293 transitions. [2020-11-29 20:23:37,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:23:37,027 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 293 transitions. [2020-11-29 20:23:37,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-29 20:23:37,028 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:37,029 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:37,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-29 20:23:37,029 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:37,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:37,030 INFO L82 PathProgramCache]: Analyzing trace with hash 849122527, now seen corresponding path program 1 times [2020-11-29 20:23:37,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:37,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514425100] [2020-11-29 20:23:37,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:37,236 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:37,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:37,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:37,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:37,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:37,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-29 20:23:37,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:37,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-29 20:23:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:37,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 20:23:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:37,611 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 20:23:37,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514425100] [2020-11-29 20:23:37,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:37,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-29 20:23:37,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424522421] [2020-11-29 20:23:37,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 20:23:37,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:37,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 20:23:37,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-11-29 20:23:37,615 INFO L87 Difference]: Start difference. First operand 231 states and 293 transitions. Second operand 15 states. [2020-11-29 20:23:39,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:39,126 INFO L93 Difference]: Finished difference Result 245 states and 307 transitions. [2020-11-29 20:23:39,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 20:23:39,127 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 58 [2020-11-29 20:23:39,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:39,129 INFO L225 Difference]: With dead ends: 245 [2020-11-29 20:23:39,129 INFO L226 Difference]: Without dead ends: 228 [2020-11-29 20:23:39,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-29 20:23:39,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-11-29 20:23:39,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-11-29 20:23:39,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-11-29 20:23:39,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 287 transitions. [2020-11-29 20:23:39,139 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 287 transitions. Word has length 58 [2020-11-29 20:23:39,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:39,140 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 287 transitions. [2020-11-29 20:23:39,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 20:23:39,140 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 287 transitions. [2020-11-29 20:23:39,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-11-29 20:23:39,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:39,142 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:39,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-29 20:23:39,142 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:39,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:39,143 INFO L82 PathProgramCache]: Analyzing trace with hash 934225371, now seen corresponding path program 1 times [2020-11-29 20:23:39,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:39,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881465874] [2020-11-29 20:23:39,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:39,340 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:39,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:39,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:39,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:39,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:39,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-11-29 20:23:39,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:39,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-11-29 20:23:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:39,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 20:23:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:39,775 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 20:23:39,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881465874] [2020-11-29 20:23:39,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:39,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-29 20:23:39,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299757501] [2020-11-29 20:23:39,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 20:23:39,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:39,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 20:23:39,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-11-29 20:23:39,781 INFO L87 Difference]: Start difference. First operand 228 states and 287 transitions. Second operand 15 states. [2020-11-29 20:23:41,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:41,511 INFO L93 Difference]: Finished difference Result 242 states and 301 transitions. [2020-11-29 20:23:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 20:23:41,512 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2020-11-29 20:23:41,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:41,513 INFO L225 Difference]: With dead ends: 242 [2020-11-29 20:23:41,514 INFO L226 Difference]: Without dead ends: 198 [2020-11-29 20:23:41,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-29 20:23:41,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-29 20:23:41,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-11-29 20:23:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-29 20:23:41,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 244 transitions. [2020-11-29 20:23:41,524 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 244 transitions. Word has length 62 [2020-11-29 20:23:41,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:41,524 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 244 transitions. [2020-11-29 20:23:41,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 20:23:41,525 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 244 transitions. [2020-11-29 20:23:41,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-29 20:23:41,528 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:41,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:41,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-29 20:23:41,528 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:41,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:41,529 INFO L82 PathProgramCache]: Analyzing trace with hash -932768924, now seen corresponding path program 1 times [2020-11-29 20:23:41,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:41,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258728307] [2020-11-29 20:23:41,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:41,723 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:41,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:41,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:41,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:41,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:41,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-11-29 20:23:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:41,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-11-29 20:23:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:41,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-29 20:23:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:42,065 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 20:23:42,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258728307] [2020-11-29 20:23:42,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:42,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-11-29 20:23:42,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571083781] [2020-11-29 20:23:42,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 20:23:42,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:42,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 20:23:42,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-11-29 20:23:42,071 INFO L87 Difference]: Start difference. First operand 198 states and 244 transitions. Second operand 15 states. [2020-11-29 20:23:43,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:43,029 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2020-11-29 20:23:43,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 20:23:43,030 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 57 [2020-11-29 20:23:43,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:43,031 INFO L225 Difference]: With dead ends: 212 [2020-11-29 20:23:43,032 INFO L226 Difference]: Without dead ends: 172 [2020-11-29 20:23:43,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-11-29 20:23:43,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-29 20:23:43,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-11-29 20:23:43,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-29 20:23:43,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 212 transitions. [2020-11-29 20:23:43,039 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 212 transitions. Word has length 57 [2020-11-29 20:23:43,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:43,039 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 212 transitions. [2020-11-29 20:23:43,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 20:23:43,039 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 212 transitions. [2020-11-29 20:23:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-29 20:23:43,040 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:43,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:43,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-29 20:23:43,041 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:43,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:43,042 INFO L82 PathProgramCache]: Analyzing trace with hash -28050612, now seen corresponding path program 1 times [2020-11-29 20:23:43,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:43,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242217361] [2020-11-29 20:23:43,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:43,242 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:43,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:43,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:43,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:43,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-29 20:23:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:43,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-29 20:23:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:43,561 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 20:23:43,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242217361] [2020-11-29 20:23:43,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:43,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-11-29 20:23:43,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619442265] [2020-11-29 20:23:43,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-29 20:23:43,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:43,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-29 20:23:43,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-11-29 20:23:43,564 INFO L87 Difference]: Start difference. First operand 172 states and 212 transitions. Second operand 13 states. [2020-11-29 20:23:43,778 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-29 20:23:44,087 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-29 20:23:44,507 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-29 20:23:45,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:45,204 INFO L93 Difference]: Finished difference Result 274 states and 325 transitions. [2020-11-29 20:23:45,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 20:23:45,207 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2020-11-29 20:23:45,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:45,208 INFO L225 Difference]: With dead ends: 274 [2020-11-29 20:23:45,209 INFO L226 Difference]: Without dead ends: 250 [2020-11-29 20:23:45,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2020-11-29 20:23:45,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-11-29 20:23:45,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 182. [2020-11-29 20:23:45,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-11-29 20:23:45,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 223 transitions. [2020-11-29 20:23:45,217 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 223 transitions. Word has length 56 [2020-11-29 20:23:45,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:45,218 INFO L481 AbstractCegarLoop]: Abstraction has 182 states and 223 transitions. [2020-11-29 20:23:45,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-29 20:23:45,218 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 223 transitions. [2020-11-29 20:23:45,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-29 20:23:45,219 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:45,219 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:45,220 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-29 20:23:45,220 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:45,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:45,220 INFO L82 PathProgramCache]: Analyzing trace with hash -90196367, now seen corresponding path program 1 times [2020-11-29 20:23:45,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:45,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690503133] [2020-11-29 20:23:45,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:45,417 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-29 20:23:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 20:23:45,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:45,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-11-29 20:23:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:45,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-11-29 20:23:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:45,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-11-29 20:23:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:45,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-11-29 20:23:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:45,742 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 20:23:45,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690503133] [2020-11-29 20:23:45,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:45,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-11-29 20:23:45,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528017548] [2020-11-29 20:23:45,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 20:23:45,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:23:45,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 20:23:45,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2020-11-29 20:23:45,745 INFO L87 Difference]: Start difference. First operand 182 states and 223 transitions. Second operand 14 states. [2020-11-29 20:23:46,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:46,756 INFO L93 Difference]: Finished difference Result 204 states and 245 transitions. [2020-11-29 20:23:46,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-29 20:23:46,757 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 56 [2020-11-29 20:23:46,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:46,759 INFO L225 Difference]: With dead ends: 204 [2020-11-29 20:23:46,759 INFO L226 Difference]: Without dead ends: 148 [2020-11-29 20:23:46,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2020-11-29 20:23:46,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-11-29 20:23:46,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-11-29 20:23:46,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-11-29 20:23:46,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 166 transitions. [2020-11-29 20:23:46,765 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 166 transitions. Word has length 56 [2020-11-29 20:23:46,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:46,766 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 166 transitions. [2020-11-29 20:23:46,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 20:23:46,766 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 166 transitions. [2020-11-29 20:23:46,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-29 20:23:46,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:46,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:46,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-29 20:23:46,768 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:46,768 INFO L82 PathProgramCache]: Analyzing trace with hash 238720431, now seen corresponding path program 1 times [2020-11-29 20:23:46,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:23:46,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748931597] [2020-11-29 20:23:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:23:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:46,816 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:46,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:23:46,861 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:23:46,950 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:23:46,951 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:23:46,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-29 20:23:47,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:23:47 BoogieIcfgContainer [2020-11-29 20:23:47,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:23:47,158 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:23:47,158 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:23:47,158 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:23:47,159 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:22:59" (3/4) ... [2020-11-29 20:23:47,166 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:23:47,167 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:23:47,171 INFO L168 Benchmark]: Toolchain (without parser) took 50366.85 ms. Allocated memory was 92.3 MB in the beginning and 360.7 MB in the end (delta: 268.4 MB). Free memory was 61.1 MB in the beginning and 257.2 MB in the end (delta: -196.0 MB). Peak memory consumption was 71.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:47,171 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 92.3 MB. Free memory was 51.3 MB in the beginning and 51.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:23:47,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.35 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 62.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:47,173 INFO L168 Benchmark]: Boogie Preprocessor took 136.68 ms. Allocated memory is still 92.3 MB. Free memory was 62.3 MB in the beginning and 59.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:47,174 INFO L168 Benchmark]: RCFGBuilder took 1606.19 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 59.3 MB in the beginning and 92.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:47,176 INFO L168 Benchmark]: TraceAbstraction took 47954.12 ms. Allocated memory was 117.4 MB in the beginning and 360.7 MB in the end (delta: 243.3 MB). Free memory was 91.4 MB in the beginning and 257.2 MB in the end (delta: -165.7 MB). Peak memory consumption was 76.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:23:47,177 INFO L168 Benchmark]: Witness Printer took 9.09 ms. Allocated memory is still 360.7 MB. Free memory is still 257.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:23:47,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 92.3 MB. Free memory was 51.3 MB in the beginning and 51.2 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 650.35 ms. Allocated memory is still 92.3 MB. Free memory was 60.9 MB in the beginning and 62.3 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 136.68 ms. Allocated memory is still 92.3 MB. Free memory was 62.3 MB in the beginning and 59.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1606.19 ms. Allocated memory was 92.3 MB in the beginning and 117.4 MB in the end (delta: 25.2 MB). Free memory was 59.3 MB in the beginning and 92.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 47954.12 ms. Allocated memory was 117.4 MB in the beginning and 360.7 MB in the end (delta: 243.3 MB). Free memory was 91.4 MB in the beginning and 257.2 MB in the end (delta: -165.7 MB). Peak memory consumption was 76.2 MB. Max. memory is 16.1 GB. * Witness Printer took 9.09 ms. Allocated memory is still 360.7 MB. Free memory is still 257.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [\old(compFptr)=57, \old(compRegistered)=67, \old(customIrp)=70, \old(DC)=64, \old(DevicePowerState)=73, \old(Executive)=66, \old(IPC)=49, \old(KernelMode)=60, \old(lowerDriverReturn)=75, \old(MPR1)=58, \old(MPR3)=71, \old(myStatus)=74, \old(NP)=68, \old(pended)=59, \old(s)=50, \old(setEventCalled)=72, \old(SKIP1)=56, \old(SKIP2)=52, \old(UNLOADED)=62, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, devobj=-3, Executive=0, IPC=0, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L326] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L326] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L342] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L342] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L236] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L247] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L551] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DevicePowerState=1, Executive=0, IPC=7, Irp=-2, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=1, tmp_ndt_7=1, UNLOADED=0] [L247] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L248] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L290] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=-3, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=-2, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=-6, devExt__Removed=1, devExt__TopOfStack=0, DeviceObject=-3, DeviceObject__DeviceExtension=-6, DevicePowerState=1, event=0, Executive=0, IPC=7, Irp=-2, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L388] RET, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L429] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=-3, Executive=0, IPC=7, irp=-2, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, pirp=-2, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=-4, tmp_ndt_2=-5, tmp_ndt_3=3, UNLOADED=0] [L453] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] CALL reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L3] __assert_fail("0", "kbfiltr_simpl2.cil-2.c", 3, "reach_error") VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 245 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 47.6s, OverallIterations: 24, TraceHistogramMax: 1, AutomataDifference: 34.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5493 SDtfs, 8953 SDslu, 8066 SDs, 0 SdLazy, 17768 SolverSat, 1832 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 451 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 375 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 23 MinimizatonAttempts, 298 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.5s InterpolantComputationTime, 1164 NumberOfCodeBlocks, 1164 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1084 ConstructedInterpolants, 0 QuantifiedInterpolants, 292019 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 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... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:23:50,377 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 20:23:50,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-29 20:23:50,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:23:50,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:23:50,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:23:50,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:23:50,561 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:23:50,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:23:50,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:23:50,562 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:23:50,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:23:50,562 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:23:50,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:23:50,562 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 20:23:50,563 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 20:23:50,563 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-29 20:23:50,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:23:50,563 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 20:23:50,564 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 20:23:50,564 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 20:23:50,564 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:23:50,564 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:23:50,565 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:23:50,565 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:23:50,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:23:50,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:23:50,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:23:50,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:23:50,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:23:50,566 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 20:23:50,567 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 20:23:50,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:23:50,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 20:23:50,567 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6d5b369a-c6dd-4666-98f3-3d585bd90df4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf978f501147b566a0f6f3e817c934f24352e71 [2020-11-29 20:23:51,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:23:51,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:23:51,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:23:51,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:23:51,214 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:23:51,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-11-29 20:23:51,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data/49fe09abe/e75dfad7c920460e9600b56450f07ea0/FLAG4f888169a [2020-11-29 20:23:52,040 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:23:52,041 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2020-11-29 20:23:52,059 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data/49fe09abe/e75dfad7c920460e9600b56450f07ea0/FLAG4f888169a [2020-11-29 20:23:52,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/data/49fe09abe/e75dfad7c920460e9600b56450f07ea0 [2020-11-29 20:23:52,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:23:52,328 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 20:23:52,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:23:52,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:23:52,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:23:52,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:23:52" (1/1) ... [2020-11-29 20:23:52,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29fa817e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:52, skipping insertion in model container [2020-11-29 20:23:52,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:23:52" (1/1) ... [2020-11-29 20:23:52,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:23:52,434 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:23:52,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:23:52,829 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:23:53,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:23:53,060 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:23:53,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53 WrapperNode [2020-11-29 20:23:53,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:23:53,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:23:53,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:23:53,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:23:53,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (1/1) ... [2020-11-29 20:23:53,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (1/1) ... [2020-11-29 20:23:53,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (1/1) ... [2020-11-29 20:23:53,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (1/1) ... [2020-11-29 20:23:53,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (1/1) ... [2020-11-29 20:23:53,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (1/1) ... [2020-11-29 20:23:53,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (1/1) ... [2020-11-29 20:23:53,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:23:53,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:23:53,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:23:53,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:23:53,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/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 20:23:53,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 20:23:53,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:23:53,283 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-29 20:23:53,283 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2020-11-29 20:23:53,283 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2020-11-29 20:23:53,283 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_PnP [2020-11-29 20:23:53,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 20:23:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2020-11-29 20:23:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2020-11-29 20:23:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2020-11-29 20:23:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2020-11-29 20:23:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2020-11-29 20:23:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2020-11-29 20:23:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2020-11-29 20:23:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2020-11-29 20:23:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Power [2020-11-29 20:23:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2020-11-29 20:23:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_InternIoCtl [2020-11-29 20:23:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2020-11-29 20:23:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 20:23:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-29 20:23:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-29 20:23:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:23:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-11-29 20:23:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 20:23:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-11-29 20:23:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_PnP [2020-11-29 20:23:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2020-11-29 20:23:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2020-11-29 20:23:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2020-11-29 20:23:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2020-11-29 20:23:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2020-11-29 20:23:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2020-11-29 20:23:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Power [2020-11-29 20:23:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2020-11-29 20:23:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_InternIoCtl [2020-11-29 20:23:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2020-11-29 20:23:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2020-11-29 20:23:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2020-11-29 20:23:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2020-11-29 20:23:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 20:23:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2020-11-29 20:23:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 20:23:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 20:23:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:23:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-29 20:23:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-29 20:23:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:23:53,786 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:23:54,060 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2020-11-29 20:23:54,061 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2020-11-29 20:23:54,074 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:23:54,158 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-11-29 20:23:54,159 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-11-29 20:23:54,375 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:23:54,411 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2020-11-29 20:23:54,412 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2020-11-29 20:23:54,426 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:23:54,654 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2020-11-29 20:23:54,654 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2020-11-29 20:23:54,660 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:23:54,706 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-11-29 20:23:54,706 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-11-29 20:23:54,718 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-29 20:23:54,786 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2020-11-29 20:23:54,786 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2020-11-29 20:23:54,886 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:23:54,886 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-29 20:23:54,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:23:54 BoogieIcfgContainer [2020-11-29 20:23:54,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:23:54,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:23:54,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:23:54,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:23:54,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:23:52" (1/3) ... [2020-11-29 20:23:54,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd3ce4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:23:54, skipping insertion in model container [2020-11-29 20:23:54,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:23:53" (2/3) ... [2020-11-29 20:23:54,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd3ce4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:23:54, skipping insertion in model container [2020-11-29 20:23:54,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:23:54" (3/3) ... [2020-11-29 20:23:54,905 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2020-11-29 20:23:54,921 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:23:54,928 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-29 20:23:54,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-29 20:23:54,988 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:23:54,988 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 20:23:54,988 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:23:54,989 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:23:54,989 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:23:54,989 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:23:54,989 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:23:54,989 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:23:55,027 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-11-29 20:23:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:23:55,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:55,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:55,045 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:55,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1840155786, now seen corresponding path program 1 times [2020-11-29 20:23:55,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:23:55,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341766537] [2020-11-29 20:23:55,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/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 20:23:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:55,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 20:23:55,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:23:55,553 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 20:23:55,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:23:55,588 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 20:23:55,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341766537] [2020-11-29 20:23:55,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:55,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-11-29 20:23:55,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489401744] [2020-11-29 20:23:55,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:23:55,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:23:55,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:23:55,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:23:55,621 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 2 states. [2020-11-29 20:23:55,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:55,668 INFO L93 Difference]: Finished difference Result 239 states and 345 transitions. [2020-11-29 20:23:55,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:23:55,670 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-11-29 20:23:55,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:55,688 INFO L225 Difference]: With dead ends: 239 [2020-11-29 20:23:55,689 INFO L226 Difference]: Without dead ends: 232 [2020-11-29 20:23:55,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:23:55,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-11-29 20:23:55,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-11-29 20:23:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-29 20:23:55,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 328 transitions. [2020-11-29 20:23:55,786 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 328 transitions. Word has length 15 [2020-11-29 20:23:55,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:55,787 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 328 transitions. [2020-11-29 20:23:55,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:23:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 328 transitions. [2020-11-29 20:23:55,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 20:23:55,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:55,791 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 20:23:56,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 20:23:56,009 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:56,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:56,010 INFO L82 PathProgramCache]: Analyzing trace with hash 939288791, now seen corresponding path program 1 times [2020-11-29 20:23:56,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:23:56,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1761903448] [2020-11-29 20:23:56,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/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 20:23:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:56,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:23:56,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:23:56,353 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 20:23:56,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:23:56,393 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 20:23:56,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1761903448] [2020-11-29 20:23:56,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:56,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 20:23:56,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204501301] [2020-11-29 20:23:56,396 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:23:56,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:23:56,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:23:56,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:23:56,401 INFO L87 Difference]: Start difference. First operand 232 states and 328 transitions. Second operand 4 states. [2020-11-29 20:23:56,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:56,569 INFO L93 Difference]: Finished difference Result 232 states and 327 transitions. [2020-11-29 20:23:56,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:23:56,571 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2020-11-29 20:23:56,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:56,575 INFO L225 Difference]: With dead ends: 232 [2020-11-29 20:23:56,576 INFO L226 Difference]: Without dead ends: 232 [2020-11-29 20:23:56,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 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 20:23:56,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-11-29 20:23:56,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2020-11-29 20:23:56,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-29 20:23:56,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 327 transitions. [2020-11-29 20:23:56,623 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 327 transitions. Word has length 21 [2020-11-29 20:23:56,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:56,624 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 327 transitions. [2020-11-29 20:23:56,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:23:56,624 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 327 transitions. [2020-11-29 20:23:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 20:23:56,626 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:56,626 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:56,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 20:23:56,828 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:56,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:56,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1222215616, now seen corresponding path program 1 times [2020-11-29 20:23:56,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:23:56,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936426901] [2020-11-29 20:23:56,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 20:23:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:57,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:23:57,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:23:57,235 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 20:23:57,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:23:57,317 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 20:23:57,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936426901] [2020-11-29 20:23:57,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:57,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2020-11-29 20:23:57,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694314696] [2020-11-29 20:23:57,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:23:57,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:23:57,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:23:57,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:23:57,330 INFO L87 Difference]: Start difference. First operand 232 states and 327 transitions. Second operand 5 states. [2020-11-29 20:23:58,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:58,131 INFO L93 Difference]: Finished difference Result 317 states and 430 transitions. [2020-11-29 20:23:58,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:23:58,132 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-11-29 20:23:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:58,138 INFO L225 Difference]: With dead ends: 317 [2020-11-29 20:23:58,138 INFO L226 Difference]: Without dead ends: 316 [2020-11-29 20:23:58,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:23:58,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-11-29 20:23:58,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 299. [2020-11-29 20:23:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-11-29 20:23:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 409 transitions. [2020-11-29 20:23:58,175 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 409 transitions. Word has length 29 [2020-11-29 20:23:58,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:58,176 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 409 transitions. [2020-11-29 20:23:58,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:23:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 409 transitions. [2020-11-29 20:23:58,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 20:23:58,179 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:58,179 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:58,392 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 20:23:58,392 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:58,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:58,393 INFO L82 PathProgramCache]: Analyzing trace with hash -159057791, now seen corresponding path program 1 times [2020-11-29 20:23:58,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:23:58,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1640049072] [2020-11-29 20:23:58,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 20:23:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:58,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:23:58,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:23:58,720 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 20:23:58,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:23:58,752 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 20:23:58,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1640049072] [2020-11-29 20:23:58,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:58,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-29 20:23:58,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134662599] [2020-11-29 20:23:58,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:23:58,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:23:58,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:23:58,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:23:58,757 INFO L87 Difference]: Start difference. First operand 299 states and 409 transitions. Second operand 3 states. [2020-11-29 20:23:58,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:58,832 INFO L93 Difference]: Finished difference Result 364 states and 489 transitions. [2020-11-29 20:23:58,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:23:58,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-11-29 20:23:58,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:58,837 INFO L225 Difference]: With dead ends: 364 [2020-11-29 20:23:58,838 INFO L226 Difference]: Without dead ends: 364 [2020-11-29 20:23:58,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 20:23:58,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2020-11-29 20:23:58,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 339. [2020-11-29 20:23:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2020-11-29 20:23:58,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 460 transitions. [2020-11-29 20:23:58,871 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 460 transitions. Word has length 29 [2020-11-29 20:23:58,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:58,872 INFO L481 AbstractCegarLoop]: Abstraction has 339 states and 460 transitions. [2020-11-29 20:23:58,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:23:58,872 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 460 transitions. [2020-11-29 20:23:58,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-11-29 20:23:58,876 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:23:58,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:23:59,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 20:23:59,090 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:23:59,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:23:59,091 INFO L82 PathProgramCache]: Analyzing trace with hash -164502744, now seen corresponding path program 1 times [2020-11-29 20:23:59,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:23:59,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997331987] [2020-11-29 20:23:59,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-29 20:23:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:23:59,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:23:59,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:23:59,412 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 20:23:59,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:23:59,447 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 20:23:59,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997331987] [2020-11-29 20:23:59,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:23:59,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 5 [2020-11-29 20:23:59,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39844027] [2020-11-29 20:23:59,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:23:59,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:23:59,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:23:59,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:23:59,453 INFO L87 Difference]: Start difference. First operand 339 states and 460 transitions. Second operand 5 states. [2020-11-29 20:23:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:23:59,949 INFO L93 Difference]: Finished difference Result 338 states and 457 transitions. [2020-11-29 20:23:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:23:59,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-11-29 20:23:59,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:23:59,954 INFO L225 Difference]: With dead ends: 338 [2020-11-29 20:23:59,955 INFO L226 Difference]: Without dead ends: 338 [2020-11-29 20:23:59,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:23:59,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-11-29 20:23:59,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2020-11-29 20:23:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-11-29 20:23:59,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 457 transitions. [2020-11-29 20:23:59,995 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 457 transitions. Word has length 39 [2020-11-29 20:23:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:23:59,996 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 457 transitions. [2020-11-29 20:23:59,996 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:23:59,996 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 457 transitions. [2020-11-29 20:24:00,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-29 20:24:00,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:00,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:00,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 20:24:00,233 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:00,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:00,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1784923219, now seen corresponding path program 1 times [2020-11-29 20:24:00,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:00,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918971912] [2020-11-29 20:24:00,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:00,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:24:00,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:00,540 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 20:24:00,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:00,588 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 20:24:00,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918971912] [2020-11-29 20:24:00,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:00,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2020-11-29 20:24:00,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249261465] [2020-11-29 20:24:00,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:24:00,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:00,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:24:00,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:00,592 INFO L87 Difference]: Start difference. First operand 338 states and 457 transitions. Second operand 5 states. [2020-11-29 20:24:00,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:00,956 INFO L93 Difference]: Finished difference Result 321 states and 426 transitions. [2020-11-29 20:24:00,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:24:00,957 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-11-29 20:24:00,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:00,961 INFO L225 Difference]: With dead ends: 321 [2020-11-29 20:24:00,961 INFO L226 Difference]: Without dead ends: 321 [2020-11-29 20:24:00,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-29 20:24:00,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 299. [2020-11-29 20:24:00,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-11-29 20:24:00,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 400 transitions. [2020-11-29 20:24:00,990 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 400 transitions. Word has length 47 [2020-11-29 20:24:00,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:00,991 INFO L481 AbstractCegarLoop]: Abstraction has 299 states and 400 transitions. [2020-11-29 20:24:00,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:24:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 400 transitions. [2020-11-29 20:24:00,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-11-29 20:24:00,996 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:00,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:01,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 20:24:01,206 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:01,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:01,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1743771521, now seen corresponding path program 1 times [2020-11-29 20:24:01,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:01,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882526059] [2020-11-29 20:24:01,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:01,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:01,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:24:01,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:01,574 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 20:24:01,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:01,768 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 20:24:01,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882526059] [2020-11-29 20:24:01,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:01,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 20:24:01,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495935637] [2020-11-29 20:24:01,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:24:01,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:01,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:24:01,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:24:01,776 INFO L87 Difference]: Start difference. First operand 299 states and 400 transitions. Second operand 8 states. [2020-11-29 20:24:02,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:02,682 INFO L93 Difference]: Finished difference Result 331 states and 434 transitions. [2020-11-29 20:24:02,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:24:02,684 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2020-11-29 20:24:02,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:02,688 INFO L225 Difference]: With dead ends: 331 [2020-11-29 20:24:02,689 INFO L226 Difference]: Without dead ends: 330 [2020-11-29 20:24:02,689 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:24:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-29 20:24:02,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 315. [2020-11-29 20:24:02,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-11-29 20:24:02,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 419 transitions. [2020-11-29 20:24:02,729 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 419 transitions. Word has length 46 [2020-11-29 20:24:02,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:02,730 INFO L481 AbstractCegarLoop]: Abstraction has 315 states and 419 transitions. [2020-11-29 20:24:02,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:24:02,730 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 419 transitions. [2020-11-29 20:24:02,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-29 20:24:02,733 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:02,734 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:02,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-29 20:24:02,939 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:02,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:02,940 INFO L82 PathProgramCache]: Analyzing trace with hash -651523847, now seen corresponding path program 1 times [2020-11-29 20:24:02,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:02,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [150903251] [2020-11-29 20:24:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:03,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:24:03,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:03,301 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 20:24:03,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:03,481 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 20:24:03,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [150903251] [2020-11-29 20:24:03,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:03,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 20:24:03,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838001293] [2020-11-29 20:24:03,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:24:03,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:03,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:24:03,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:24:03,484 INFO L87 Difference]: Start difference. First operand 315 states and 419 transitions. Second operand 8 states. [2020-11-29 20:24:04,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:04,108 INFO L93 Difference]: Finished difference Result 321 states and 423 transitions. [2020-11-29 20:24:04,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 20:24:04,110 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2020-11-29 20:24:04,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:04,113 INFO L225 Difference]: With dead ends: 321 [2020-11-29 20:24:04,114 INFO L226 Difference]: Without dead ends: 321 [2020-11-29 20:24:04,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:24:04,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-11-29 20:24:04,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 315. [2020-11-29 20:24:04,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2020-11-29 20:24:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 418 transitions. [2020-11-29 20:24:04,139 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 418 transitions. Word has length 47 [2020-11-29 20:24:04,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:04,142 INFO L481 AbstractCegarLoop]: Abstraction has 315 states and 418 transitions. [2020-11-29 20:24:04,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:24:04,142 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 418 transitions. [2020-11-29 20:24:04,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-29 20:24:04,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:04,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:04,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-29 20:24:04,362 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:04,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:04,363 INFO L82 PathProgramCache]: Analyzing trace with hash -975698037, now seen corresponding path program 1 times [2020-11-29 20:24:04,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:04,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864949431] [2020-11-29 20:24:04,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:04,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:24:04,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:04,684 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 20:24:04,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:04,769 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 20:24:04,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864949431] [2020-11-29 20:24:04,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:04,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 20:24:04,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176804178] [2020-11-29 20:24:04,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:24:04,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:04,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:24:04,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 20:24:04,772 INFO L87 Difference]: Start difference. First operand 315 states and 418 transitions. Second operand 4 states. [2020-11-29 20:24:04,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:04,985 INFO L93 Difference]: Finished difference Result 309 states and 406 transitions. [2020-11-29 20:24:04,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:04,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2020-11-29 20:24:04,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:04,988 INFO L225 Difference]: With dead ends: 309 [2020-11-29 20:24:04,988 INFO L226 Difference]: Without dead ends: 273 [2020-11-29 20:24:04,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 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 20:24:04,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-11-29 20:24:04,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 243. [2020-11-29 20:24:04,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-11-29 20:24:04,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 322 transitions. [2020-11-29 20:24:05,000 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 322 transitions. Word has length 48 [2020-11-29 20:24:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:05,000 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 322 transitions. [2020-11-29 20:24:05,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:24:05,001 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 322 transitions. [2020-11-29 20:24:05,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 20:24:05,002 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:05,002 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:05,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-29 20:24:05,216 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:05,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:05,216 INFO L82 PathProgramCache]: Analyzing trace with hash 720522391, now seen corresponding path program 1 times [2020-11-29 20:24:05,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:05,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071142621] [2020-11-29 20:24:05,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:05,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 20:24:05,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:05,550 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 20:24:05,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:05,632 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 20:24:05,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071142621] [2020-11-29 20:24:05,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:05,633 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-29 20:24:05,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170166955] [2020-11-29 20:24:05,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:24:05,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:05,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:24:05,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:24:05,634 INFO L87 Difference]: Start difference. First operand 243 states and 322 transitions. Second operand 3 states. [2020-11-29 20:24:05,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:05,757 INFO L93 Difference]: Finished difference Result 241 states and 318 transitions. [2020-11-29 20:24:05,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:24:05,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-11-29 20:24:05,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:05,760 INFO L225 Difference]: With dead ends: 241 [2020-11-29 20:24:05,760 INFO L226 Difference]: Without dead ends: 241 [2020-11-29 20:24:05,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 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 20:24:05,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-11-29 20:24:05,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2020-11-29 20:24:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-29 20:24:05,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 318 transitions. [2020-11-29 20:24:05,780 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 318 transitions. Word has length 54 [2020-11-29 20:24:05,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:05,780 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 318 transitions. [2020-11-29 20:24:05,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:24:05,781 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 318 transitions. [2020-11-29 20:24:05,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-11-29 20:24:05,782 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:05,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:05,996 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-29 20:24:05,998 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:05,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:05,998 INFO L82 PathProgramCache]: Analyzing trace with hash -183905982, now seen corresponding path program 1 times [2020-11-29 20:24:05,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:05,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924836252] [2020-11-29 20:24:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:06,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 20:24:06,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:06,394 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 20:24:06,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:06,649 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 20:24:06,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924836252] [2020-11-29 20:24:06,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:06,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2020-11-29 20:24:06,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487936036] [2020-11-29 20:24:06,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 20:24:06,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:06,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 20:24:06,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-29 20:24:06,653 INFO L87 Difference]: Start difference. First operand 241 states and 318 transitions. Second operand 11 states. [2020-11-29 20:24:07,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:07,456 INFO L93 Difference]: Finished difference Result 248 states and 321 transitions. [2020-11-29 20:24:07,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-29 20:24:07,456 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 52 [2020-11-29 20:24:07,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:07,458 INFO L225 Difference]: With dead ends: 248 [2020-11-29 20:24:07,458 INFO L226 Difference]: Without dead ends: 248 [2020-11-29 20:24:07,459 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2020-11-29 20:24:07,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-11-29 20:24:07,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 241. [2020-11-29 20:24:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-29 20:24:07,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 316 transitions. [2020-11-29 20:24:07,470 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 316 transitions. Word has length 52 [2020-11-29 20:24:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:07,471 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 316 transitions. [2020-11-29 20:24:07,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 20:24:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 316 transitions. [2020-11-29 20:24:07,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 20:24:07,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:07,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:07,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-29 20:24:07,690 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:07,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:07,691 INFO L82 PathProgramCache]: Analyzing trace with hash -599457753, now seen corresponding path program 1 times [2020-11-29 20:24:07,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:07,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403225534] [2020-11-29 20:24:07,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:07,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 20:24:07,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:08,075 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 20:24:08,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:08,402 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 20:24:08,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403225534] [2020-11-29 20:24:08,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:08,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [] total 11 [2020-11-29 20:24:08,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469325100] [2020-11-29 20:24:08,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 20:24:08,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:08,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 20:24:08,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-29 20:24:08,406 INFO L87 Difference]: Start difference. First operand 241 states and 316 transitions. Second operand 11 states. [2020-11-29 20:24:09,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:09,006 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2020-11-29 20:24:09,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 20:24:09,007 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2020-11-29 20:24:09,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:09,009 INFO L225 Difference]: With dead ends: 239 [2020-11-29 20:24:09,009 INFO L226 Difference]: Without dead ends: 239 [2020-11-29 20:24:09,010 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-11-29 20:24:09,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-29 20:24:09,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2020-11-29 20:24:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-11-29 20:24:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 310 transitions. [2020-11-29 20:24:09,027 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 310 transitions. Word has length 54 [2020-11-29 20:24:09,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:09,029 INFO L481 AbstractCegarLoop]: Abstraction has 239 states and 310 transitions. [2020-11-29 20:24:09,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 20:24:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 310 transitions. [2020-11-29 20:24:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-29 20:24:09,031 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:09,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:09,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-29 20:24:09,246 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:09,247 INFO L82 PathProgramCache]: Analyzing trace with hash -2035891929, now seen corresponding path program 1 times [2020-11-29 20:24:09,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:09,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [476762513] [2020-11-29 20:24:09,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:09,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 20:24:09,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:09,665 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 20:24:09,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:10,048 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 20:24:10,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [476762513] [2020-11-29 20:24:10,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:10,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 15 [2020-11-29 20:24:10,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934860638] [2020-11-29 20:24:10,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-29 20:24:10,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:10,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-29 20:24:10,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-11-29 20:24:10,055 INFO L87 Difference]: Start difference. First operand 239 states and 310 transitions. Second operand 15 states. [2020-11-29 20:24:10,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:10,438 INFO L93 Difference]: Finished difference Result 267 states and 338 transitions. [2020-11-29 20:24:10,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-29 20:24:10,441 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2020-11-29 20:24:10,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:10,442 INFO L225 Difference]: With dead ends: 267 [2020-11-29 20:24:10,443 INFO L226 Difference]: Without dead ends: 211 [2020-11-29 20:24:10,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2020-11-29 20:24:10,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-11-29 20:24:10,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-11-29 20:24:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-11-29 20:24:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 274 transitions. [2020-11-29 20:24:10,451 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 274 transitions. Word has length 54 [2020-11-29 20:24:10,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:10,451 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 274 transitions. [2020-11-29 20:24:10,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-29 20:24:10,451 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 274 transitions. [2020-11-29 20:24:10,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-29 20:24:10,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:10,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:10,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-11-29 20:24:10,654 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:10,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:10,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1854515637, now seen corresponding path program 1 times [2020-11-29 20:24:10,654 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:10,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562702622] [2020-11-29 20:24:10,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:10,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:24:10,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:10,973 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 20:24:10,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:11,112 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 20:24:11,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562702622] [2020-11-29 20:24:11,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:11,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-29 20:24:11,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044587341] [2020-11-29 20:24:11,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 20:24:11,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:11,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 20:24:11,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:11,115 INFO L87 Difference]: Start difference. First operand 211 states and 274 transitions. Second operand 5 states. [2020-11-29 20:24:11,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:11,135 INFO L93 Difference]: Finished difference Result 204 states and 264 transitions. [2020-11-29 20:24:11,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:24:11,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-11-29 20:24:11,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:11,137 INFO L225 Difference]: With dead ends: 204 [2020-11-29 20:24:11,137 INFO L226 Difference]: Without dead ends: 204 [2020-11-29 20:24:11,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 20:24:11,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-11-29 20:24:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2020-11-29 20:24:11,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-11-29 20:24:11,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 264 transitions. [2020-11-29 20:24:11,146 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 264 transitions. Word has length 58 [2020-11-29 20:24:11,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:11,147 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 264 transitions. [2020-11-29 20:24:11,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 20:24:11,147 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 264 transitions. [2020-11-29 20:24:11,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-11-29 20:24:11,148 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:11,149 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:11,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-11-29 20:24:11,371 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:11,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:11,371 INFO L82 PathProgramCache]: Analyzing trace with hash 559367369, now seen corresponding path program 1 times [2020-11-29 20:24:11,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:11,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924883610] [2020-11-29 20:24:11,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:11,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 20:24:11,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:11,747 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 20:24:11,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:12,111 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 20:24:12,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924883610] [2020-11-29 20:24:12,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:12,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2020-11-29 20:24:12,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494093164] [2020-11-29 20:24:12,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-29 20:24:12,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:12,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-29 20:24:12,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-29 20:24:12,124 INFO L87 Difference]: Start difference. First operand 204 states and 264 transitions. Second operand 17 states. [2020-11-29 20:24:12,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:12,680 INFO L93 Difference]: Finished difference Result 246 states and 310 transitions. [2020-11-29 20:24:12,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 20:24:12,681 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 55 [2020-11-29 20:24:12,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:12,683 INFO L225 Difference]: With dead ends: 246 [2020-11-29 20:24:12,683 INFO L226 Difference]: Without dead ends: 214 [2020-11-29 20:24:12,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-11-29 20:24:12,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-11-29 20:24:12,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 202. [2020-11-29 20:24:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-29 20:24:12,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 261 transitions. [2020-11-29 20:24:12,698 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 261 transitions. Word has length 55 [2020-11-29 20:24:12,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:12,699 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 261 transitions. [2020-11-29 20:24:12,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-29 20:24:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 261 transitions. [2020-11-29 20:24:12,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-29 20:24:12,706 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:12,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:12,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-11-29 20:24:12,922 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:12,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:12,923 INFO L82 PathProgramCache]: Analyzing trace with hash -932768924, now seen corresponding path program 1 times [2020-11-29 20:24:12,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:12,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456334740] [2020-11-29 20:24:12,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:13,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 20:24:13,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:13,468 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 20:24:13,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:14,013 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 20:24:14,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456334740] [2020-11-29 20:24:14,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:14,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2020-11-29 20:24:14,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585242957] [2020-11-29 20:24:14,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-29 20:24:14,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:14,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-29 20:24:14,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-11-29 20:24:14,016 INFO L87 Difference]: Start difference. First operand 202 states and 261 transitions. Second operand 19 states. [2020-11-29 20:24:14,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:14,649 INFO L93 Difference]: Finished difference Result 239 states and 302 transitions. [2020-11-29 20:24:14,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-29 20:24:14,650 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 57 [2020-11-29 20:24:14,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:14,652 INFO L225 Difference]: With dead ends: 239 [2020-11-29 20:24:14,652 INFO L226 Difference]: Without dead ends: 218 [2020-11-29 20:24:14,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-11-29 20:24:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-29 20:24:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 200. [2020-11-29 20:24:14,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-11-29 20:24:14,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 257 transitions. [2020-11-29 20:24:14,666 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 257 transitions. Word has length 57 [2020-11-29 20:24:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:14,666 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 257 transitions. [2020-11-29 20:24:14,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-29 20:24:14,667 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 257 transitions. [2020-11-29 20:24:14,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-29 20:24:14,668 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:14,668 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:14,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-11-29 20:24:14,882 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:14,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:14,883 INFO L82 PathProgramCache]: Analyzing trace with hash -28050612, now seen corresponding path program 1 times [2020-11-29 20:24:14,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:14,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451918205] [2020-11-29 20:24:14,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:15,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:24:15,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:15,213 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 20:24:15,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:15,386 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 20:24:15,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451918205] [2020-11-29 20:24:15,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:15,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2020-11-29 20:24:15,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691960437] [2020-11-29 20:24:15,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 20:24:15,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:15,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 20:24:15,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-11-29 20:24:15,389 INFO L87 Difference]: Start difference. First operand 200 states and 257 transitions. Second operand 12 states. [2020-11-29 20:24:16,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:16,155 INFO L93 Difference]: Finished difference Result 286 states and 353 transitions. [2020-11-29 20:24:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 20:24:16,156 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 56 [2020-11-29 20:24:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:16,158 INFO L225 Difference]: With dead ends: 286 [2020-11-29 20:24:16,158 INFO L226 Difference]: Without dead ends: 272 [2020-11-29 20:24:16,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-11-29 20:24:16,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-29 20:24:16,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 206. [2020-11-29 20:24:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-11-29 20:24:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 264 transitions. [2020-11-29 20:24:16,168 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 264 transitions. Word has length 56 [2020-11-29 20:24:16,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:16,168 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 264 transitions. [2020-11-29 20:24:16,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 20:24:16,169 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 264 transitions. [2020-11-29 20:24:16,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-11-29 20:24:16,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:16,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:16,384 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2020-11-29 20:24:16,385 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:16,385 INFO L82 PathProgramCache]: Analyzing trace with hash -90196367, now seen corresponding path program 1 times [2020-11-29 20:24:16,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:16,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151358825] [2020-11-29 20:24:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:16,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 20:24:16,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:16,746 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 20:24:16,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:17,007 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 20:24:17,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151358825] [2020-11-29 20:24:17,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:17,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2020-11-29 20:24:17,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583245607] [2020-11-29 20:24:17,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-29 20:24:17,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:17,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-29 20:24:17,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-11-29 20:24:17,010 INFO L87 Difference]: Start difference. First operand 206 states and 264 transitions. Second operand 17 states. [2020-11-29 20:24:17,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:17,610 INFO L93 Difference]: Finished difference Result 239 states and 297 transitions. [2020-11-29 20:24:17,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-29 20:24:17,610 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 56 [2020-11-29 20:24:17,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:17,612 INFO L225 Difference]: With dead ends: 239 [2020-11-29 20:24:17,612 INFO L226 Difference]: Without dead ends: 190 [2020-11-29 20:24:17,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2020-11-29 20:24:17,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-29 20:24:17,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2020-11-29 20:24:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-29 20:24:17,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 221 transitions. [2020-11-29 20:24:17,620 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 221 transitions. Word has length 56 [2020-11-29 20:24:17,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:17,620 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 221 transitions. [2020-11-29 20:24:17,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-29 20:24:17,620 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 221 transitions. [2020-11-29 20:24:17,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-11-29 20:24:17,621 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:17,622 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:17,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-11-29 20:24:17,822 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:17,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:17,823 INFO L82 PathProgramCache]: Analyzing trace with hash 849122527, now seen corresponding path program 1 times [2020-11-29 20:24:17,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:17,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268171253] [2020-11-29 20:24:17,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:24:18,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 20:24:18,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:24:18,182 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 20:24:18,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:24:18,584 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 20:24:18,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268171253] [2020-11-29 20:24:18,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:24:18,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2020-11-29 20:24:18,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276407268] [2020-11-29 20:24:18,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-11-29 20:24:18,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:24:18,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-11-29 20:24:18,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-11-29 20:24:18,587 INFO L87 Difference]: Start difference. First operand 184 states and 221 transitions. Second operand 19 states. [2020-11-29 20:24:19,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:24:19,020 INFO L93 Difference]: Finished difference Result 215 states and 253 transitions. [2020-11-29 20:24:19,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-29 20:24:19,021 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 58 [2020-11-29 20:24:19,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:24:19,023 INFO L225 Difference]: With dead ends: 215 [2020-11-29 20:24:19,023 INFO L226 Difference]: Without dead ends: 181 [2020-11-29 20:24:19,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2020-11-29 20:24:19,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-11-29 20:24:19,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2020-11-29 20:24:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-29 20:24:19,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2020-11-29 20:24:19,030 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 58 [2020-11-29 20:24:19,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:24:19,031 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2020-11-29 20:24:19,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-11-29 20:24:19,031 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2020-11-29 20:24:19,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-11-29 20:24:19,032 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:24:19,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:24:19,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-11-29 20:24:19,233 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-11-29 20:24:19,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:24:19,233 INFO L82 PathProgramCache]: Analyzing trace with hash 238720431, now seen corresponding path program 1 times [2020-11-29 20:24:19,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:24:19,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874920756] [2020-11-29 20:24:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6d5b369a-c6dd-4666-98f3-3d585bd90df4/bin/uautomizer/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-11-29 20:24:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:19,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:24:19,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:24:19,852 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 20:24:19,853 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:24:20,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2020-11-29 20:24:20,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:24:20 BoogieIcfgContainer [2020-11-29 20:24:20,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:24:20,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:24:20,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:24:20,279 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:24:20,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:23:54" (3/4) ... [2020-11-29 20:24:20,284 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:24:20,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:24:20,287 INFO L168 Benchmark]: Toolchain (without parser) took 27957.74 ms. Allocated memory was 60.8 MB in the beginning and 209.7 MB in the end (delta: 148.9 MB). Free memory was 41.1 MB in the beginning and 88.3 MB in the end (delta: -47.2 MB). Peak memory consumption was 102.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:20,289 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 60.8 MB. Free memory is still 43.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:24:20,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.48 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 38.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:20,290 INFO L168 Benchmark]: Boogie Preprocessor took 115.90 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 35.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:20,291 INFO L168 Benchmark]: RCFGBuilder took 1712.43 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 35.7 MB in the beginning and 55.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:20,292 INFO L168 Benchmark]: TraceAbstraction took 25382.75 ms. Allocated memory was 81.8 MB in the beginning and 209.7 MB in the end (delta: 127.9 MB). Free memory was 55.8 MB in the beginning and 89.3 MB in the end (delta: -33.6 MB). Peak memory consumption was 93.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:20,292 INFO L168 Benchmark]: Witness Printer took 6.06 ms. Allocated memory is still 209.7 MB. Free memory was 89.3 MB in the beginning and 88.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:24:20,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 60.8 MB. Free memory is still 43.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 731.48 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 38.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 115.90 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 35.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1712.43 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 35.7 MB in the beginning and 55.8 MB in the end (delta: -20.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 25382.75 ms. Allocated memory was 81.8 MB in the beginning and 209.7 MB in the end (delta: 127.9 MB). Free memory was 55.8 MB in the beginning and 89.3 MB in the end (delta: -33.6 MB). Peak memory consumption was 93.4 MB. Max. memory is 16.1 GB. * Witness Printer took 6.06 ms. Allocated memory is still 209.7 MB. Free memory was 89.3 MB in the beginning and 88.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [\old(compFptr)=25, \old(compRegistered)=9, \old(customIrp)=34, \old(DC)=17, \old(DevicePowerState)=27, \old(Executive)=19, \old(IPC)=32, \old(KernelMode)=16, \old(lowerDriverReturn)=18, \old(MPR1)=35, \old(MPR3)=30, \old(myStatus)=8, \old(NP)=33, \old(pended)=31, \old(s)=20, \old(setEventCalled)=28, \old(SKIP1)=15, \old(SKIP2)=24, \old(UNLOADED)=13, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, devobj=37, Executive=0, IPC=0, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, pirp=38, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, UNLOADED=0] [L326] CALL _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=1, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L326] RET _BLAST_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L342] CALL stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L342] RET stub_driver_init() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] CALL, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L236] devExt__Removed = 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L247] CALL IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, returnVal2=3221225473, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, returnVal2=3221225473, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L551] return (returnVal2); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=39, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=-1073741823, compFptr=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=39, DevicePowerState=1, Executive=0, IPC=7, Irp=38, KernelMode=0, lcontext=42, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, returnVal2=3221225473, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, tmp_ndt_6=2147483648, tmp_ndt_7=1, UNLOADED=0] [L247] RET IofCallDriver(devExt__TopOfStack, Irp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IofCallDriver(devExt__TopOfStack, Irp)=-1073741823, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L248] status = 0 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L290] return (status); VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=37, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(Irp)=38, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=3221225659, \old(NP)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, \result=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, devExt=41, devExt__Removed=1, devExt__TopOfStack=39, DeviceObject=37, DeviceObject__DeviceExtension=41, DevicePowerState=1, event=40, Executive=0, IPC=7, Irp=38, Irp__CurrentLocation=1, Irp__Tail__Overlay__CurrentStackLocation=1, irpStack=0, irpStack__MinorFunction=2, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, UNLOADED=0] [L388] RET, EXPR KbFilter_PnP(devobj, pirp) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KbFilter_PnP(devobj, pirp)=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L429] COND TRUE status != -1 VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, devobj=37, Executive=0, IPC=7, irp=38, irp_choice=0, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, pirp=38, pirp__IoStatus__Status=3221225659, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, tmp_ndt_1=2147483648, tmp_ndt_2=0, tmp_ndt_3=3, UNLOADED=0] [L453] CALL errorFn() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] CALL reach_error() VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L3] __assert_fail("0", "kbfiltr_simpl2.cil-2.c", 3, "reach_error") VAL [\old(compFptr)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DevicePowerState)=0, \old(Executive)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(UNLOADED)=0, compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 19 procedures, 245 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.0s, OverallIterations: 20, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5268 SDtfs, 4862 SDslu, 18137 SDs, 0 SdLazy, 3218 SolverSat, 646 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1758 GetRequests, 1591 SyntacticMatches, 5 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 233 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 932 NumberOfCodeBlocks, 932 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1712 ConstructedInterpolants, 0 QuantifiedInterpolants, 224208 SizeOfPredicates, 36 NumberOfNonLiveVariables, 5993 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 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...