./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 64bit --witnessprinter.graph.data.programhash f5fe233deb2e42c866080d038fc03ab5db72ce97 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 11:58:32,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:58:32,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:58:32,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:58:32,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:58:32,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:58:32,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:58:32,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:58:32,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:58:32,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:58:32,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:58:32,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:58:32,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:58:32,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:58:32,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:58:32,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:58:32,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:58:32,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:58:32,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:58:32,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:58:32,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:58:32,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:58:32,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:58:32,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:58:32,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:58:32,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:58:32,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:58:32,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:58:32,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:58:33,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:58:33,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:58:33,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:58:33,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:58:33,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:58:33,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:58:33,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:58:33,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:58:33,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:58:33,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:58:33,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:58:33,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:58:33,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:58:33,043 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:58:33,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:58:33,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:58:33,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:58:33,046 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:58:33,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:58:33,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:58:33,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:58:33,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:58:33,048 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:58:33,049 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:58:33,049 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:58:33,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:58:33,050 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:58:33,050 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:58:33,051 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:58:33,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:58:33,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:58:33,051 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:58:33,052 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:58:33,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:58:33,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:58:33,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:58:33,053 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:58:33,053 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:58:33,053 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:58:33,054 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5fe233deb2e42c866080d038fc03ab5db72ce97 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:58:33,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:58:33,465 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:58:33,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:58:33,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:58:33,470 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:58:33,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2019-11-21 11:58:33,559 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d228e48f/5860cae93d484353a85f327b0eb38f96/FLAG06c6e1101 [2019-11-21 11:58:34,112 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:58:34,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_5.i [2019-11-21 11:58:34,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d228e48f/5860cae93d484353a85f327b0eb38f96/FLAG06c6e1101 [2019-11-21 11:58:34,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d228e48f/5860cae93d484353a85f327b0eb38f96 [2019-11-21 11:58:34,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:58:34,374 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:58:34,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:58:34,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:58:34,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:58:34,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:58:34" (1/1) ... [2019-11-21 11:58:34,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1adb8c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:34, skipping insertion in model container [2019-11-21 11:58:34,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:58:34" (1/1) ... [2019-11-21 11:58:34,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:58:34,445 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:58:34,805 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:58:34,806 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:58:34,806 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:58:34,833 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:58:34,833 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:58:34,833 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:58:34,840 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:58:34,841 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:58:34,842 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:58:34,846 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:58:34,847 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:58:34,847 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:58:34,894 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:58:34,895 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:58:34,895 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:58:34,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:58:34,944 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:58:34,954 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:58:35,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:58:35,027 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:58:35,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:58:35,212 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:58:35,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35 WrapperNode [2019-11-21 11:58:35,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:58:35,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:58:35,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:58:35,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:58:35,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (1/1) ... [2019-11-21 11:58:35,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (1/1) ... [2019-11-21 11:58:35,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (1/1) ... [2019-11-21 11:58:35,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (1/1) ... [2019-11-21 11:58:35,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (1/1) ... [2019-11-21 11:58:35,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (1/1) ... [2019-11-21 11:58:35,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (1/1) ... [2019-11-21 11:58:35,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:58:35,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:58:35,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:58:35,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:58:35,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-21 11:58:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:58:35,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:58:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:58:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:58:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:58:35,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:58:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:58:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:58:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:58:35,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:58:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:58:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:58:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:58:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:58:35,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:58:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:58:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:58:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:58:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:58:35,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:58:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:58:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:58:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:58:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:58:35,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:58:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:58:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:58:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:58:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:58:35,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:58:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:58:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:58:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:58:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:58:35,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:58:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:58:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:58:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:58:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:58:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:58:35,390 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:58:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2019-11-21 11:58:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2019-11-21 11:58:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:58:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:58:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:58:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:58:35,391 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:58:35,391 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:58:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:58:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:58:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:58:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:58:35,392 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:58:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:58:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:58:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:58:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:58:35,393 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:58:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:58:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:58:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:58:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:58:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:58:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:58:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:58:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:58:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:58:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:58:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:58:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:58:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:58:35,399 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:58:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:58:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:58:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:58:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:58:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:58:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:58:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:58:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:58:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:58:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:58:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:58:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:58:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:58:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:58:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:58:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:58:35,404 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:58:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:58:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:58:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:58:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:58:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:58:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:58:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:58:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:58:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:58:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:58:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:58:35,408 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:58:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:58:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:58:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:58:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:58:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:58:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:58:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:58:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:58:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:58:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:58:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:58:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:58:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:58:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:58:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:58:35,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:58:35,412 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:58:35,412 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:58:35,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:58:35,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:58:35,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:58:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:58:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:58:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:58:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:58:35,413 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:58:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:58:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:58:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:58:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:58:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:58:35,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:58:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:58:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:58:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:58:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:58:35,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:58:35,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:58:35,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:58:35,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:58:35,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:58:35,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:58:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:58:35,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:58:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:58:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:58:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:58:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:58:35,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:58:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:58:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:58:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:58:35,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:58:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:58:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:58:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:58:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:58:35,420 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:58:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:58:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2019-11-21 11:58:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2019-11-21 11:58:35,421 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:58:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:58:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:58:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:58:35,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:58:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:58:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:58:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:58:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:58:35,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:58:36,103 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:58:36,506 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:58:36,847 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:58:36,847 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 11:58:36,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:58:36 BoogieIcfgContainer [2019-11-21 11:58:36,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:58:36,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:58:36,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:58:36,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:58:36,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:58:34" (1/3) ... [2019-11-21 11:58:36,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af61d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:58:36, skipping insertion in model container [2019-11-21 11:58:36,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:58:35" (2/3) ... [2019-11-21 11:58:36,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af61d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:58:36, skipping insertion in model container [2019-11-21 11:58:36,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:58:36" (3/3) ... [2019-11-21 11:58:36,865 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_5.i [2019-11-21 11:58:36,875 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:58:36,887 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-11-21 11:58:36,901 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-11-21 11:58:36,933 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:58:36,933 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:58:36,933 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:58:36,934 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:58:36,934 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:58:36,934 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:58:36,934 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:58:36,935 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:58:36,967 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-11-21 11:58:36,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:58:36,986 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:36,987 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:36,989 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:36,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:36,996 INFO L82 PathProgramCache]: Analyzing trace with hash 413310698, now seen corresponding path program 1 times [2019-11-21 11:58:37,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:37,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1501528534] [2019-11-21 11:58:37,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:37,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:58:37,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:37,471 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:58:37,472 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:58:37,481 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:58:37,481 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:58:37,482 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:58:37,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:37,514 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:37,570 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1501528534] [2019-11-21 11:58:37,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:37,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:58:37,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451224709] [2019-11-21 11:58:37,577 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:58:37,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:37,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:58:37,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:58:37,595 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 5 states. [2019-11-21 11:58:37,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:37,892 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2019-11-21 11:58:37,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:58:37,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 11:58:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:37,926 INFO L225 Difference]: With dead ends: 137 [2019-11-21 11:58:37,932 INFO L226 Difference]: Without dead ends: 134 [2019-11-21 11:58:37,938 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:58:37,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-21 11:58:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 128. [2019-11-21 11:58:37,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-21 11:58:37,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 139 transitions. [2019-11-21 11:58:37,996 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 139 transitions. Word has length 17 [2019-11-21 11:58:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:37,997 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 139 transitions. [2019-11-21 11:58:37,997 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:58:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2019-11-21 11:58:37,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:58:37,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:37,998 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:38,201 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:38,202 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:38,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:38,203 INFO L82 PathProgramCache]: Analyzing trace with hash 413310699, now seen corresponding path program 1 times [2019-11-21 11:58:38,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:38,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1919847239] [2019-11-21 11:58:38,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:38,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 11:58:38,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:38,521 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:58:38,521 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:58:38,529 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:58:38,529 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:58:38,530 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:58:38,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:38,584 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:38,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1919847239] [2019-11-21 11:58:38,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:38,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-21 11:58:38,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096711759] [2019-11-21 11:58:38,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 11:58:38,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:38,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 11:58:38,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 11:58:38,927 INFO L87 Difference]: Start difference. First operand 128 states and 139 transitions. Second operand 10 states. [2019-11-21 11:58:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:39,590 INFO L93 Difference]: Finished difference Result 133 states and 144 transitions. [2019-11-21 11:58:39,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:58:39,591 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-21 11:58:39,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:39,593 INFO L225 Difference]: With dead ends: 133 [2019-11-21 11:58:39,594 INFO L226 Difference]: Without dead ends: 133 [2019-11-21 11:58:39,595 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-21 11:58:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-21 11:58:39,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 128. [2019-11-21 11:58:39,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-21 11:58:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 138 transitions. [2019-11-21 11:58:39,609 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 138 transitions. Word has length 17 [2019-11-21 11:58:39,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:39,609 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 138 transitions. [2019-11-21 11:58:39,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 11:58:39,610 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 138 transitions. [2019-11-21 11:58:39,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:58:39,611 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:39,611 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:39,826 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:39,827 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:39,827 INFO L82 PathProgramCache]: Analyzing trace with hash 441939849, now seen corresponding path program 1 times [2019-11-21 11:58:39,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:39,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1572614303] [2019-11-21 11:58:39,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:40,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:40,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:58:40,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:40,082 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:40,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1572614303] [2019-11-21 11:58:40,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:40,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:58:40,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700258309] [2019-11-21 11:58:40,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:58:40,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:40,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:58:40,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:58:40,120 INFO L87 Difference]: Start difference. First operand 128 states and 138 transitions. Second operand 5 states. [2019-11-21 11:58:40,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:40,149 INFO L93 Difference]: Finished difference Result 127 states and 135 transitions. [2019-11-21 11:58:40,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:58:40,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 11:58:40,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:40,151 INFO L225 Difference]: With dead ends: 127 [2019-11-21 11:58:40,151 INFO L226 Difference]: Without dead ends: 127 [2019-11-21 11:58:40,152 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:58:40,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-11-21 11:58:40,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2019-11-21 11:58:40,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-21 11:58:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2019-11-21 11:58:40,162 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 17 [2019-11-21 11:58:40,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:40,163 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2019-11-21 11:58:40,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:58:40,163 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2019-11-21 11:58:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-21 11:58:40,164 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:40,164 INFO L410 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] [2019-11-21 11:58:40,370 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:40,371 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:40,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:40,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1521762813, now seen corresponding path program 1 times [2019-11-21 11:58:40,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:40,375 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1514368083] [2019-11-21 11:58:40,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:40,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:58:40,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:40,646 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:40,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:40,719 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1514368083] [2019-11-21 11:58:40,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:40,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:58:40,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438654109] [2019-11-21 11:58:40,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:58:40,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:40,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:58:40,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:58:40,721 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand 5 states. [2019-11-21 11:58:40,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:40,745 INFO L93 Difference]: Finished difference Result 127 states and 134 transitions. [2019-11-21 11:58:40,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:58:40,747 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-21 11:58:40,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:40,749 INFO L225 Difference]: With dead ends: 127 [2019-11-21 11:58:40,749 INFO L226 Difference]: Without dead ends: 127 [2019-11-21 11:58:40,750 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:58:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-11-21 11:58:40,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2019-11-21 11:58:40,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-11-21 11:58:40,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 132 transitions. [2019-11-21 11:58:40,760 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 132 transitions. Word has length 31 [2019-11-21 11:58:40,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:40,760 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 132 transitions. [2019-11-21 11:58:40,760 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:58:40,761 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 132 transitions. [2019-11-21 11:58:40,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-21 11:58:40,762 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:40,762 INFO L410 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] [2019-11-21 11:58:40,978 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:40,978 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:40,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:40,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1112938588, now seen corresponding path program 1 times [2019-11-21 11:58:40,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:40,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1107471158] [2019-11-21 11:58:40,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:41,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 11:58:41,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:41,425 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:41,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1107471158] [2019-11-21 11:58:41,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:41,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-11-21 11:58:41,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24066425] [2019-11-21 11:58:41,472 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:58:41,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:41,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:58:41,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:58:41,472 INFO L87 Difference]: Start difference. First operand 125 states and 132 transitions. Second operand 9 states. [2019-11-21 11:58:41,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:41,591 INFO L93 Difference]: Finished difference Result 142 states and 151 transitions. [2019-11-21 11:58:41,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:58:41,594 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2019-11-21 11:58:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:41,596 INFO L225 Difference]: With dead ends: 142 [2019-11-21 11:58:41,596 INFO L226 Difference]: Without dead ends: 142 [2019-11-21 11:58:41,597 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-21 11:58:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-11-21 11:58:41,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2019-11-21 11:58:41,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-11-21 11:58:41,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 146 transitions. [2019-11-21 11:58:41,625 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 146 transitions. Word has length 31 [2019-11-21 11:58:41,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:41,625 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 146 transitions. [2019-11-21 11:58:41,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:58:41,625 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 146 transitions. [2019-11-21 11:58:41,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-21 11:58:41,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:41,630 INFO L410 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] [2019-11-21 11:58:41,830 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:41,833 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:41,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:41,834 INFO L82 PathProgramCache]: Analyzing trace with hash -153172997, now seen corresponding path program 1 times [2019-11-21 11:58:41,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:41,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2044360589] [2019-11-21 11:58:41,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:42,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 11:58:42,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:42,113 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:42,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:42,166 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2044360589] [2019-11-21 11:58:42,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:42,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 11:58:42,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892831412] [2019-11-21 11:58:42,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:58:42,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:42,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:58:42,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:58:42,167 INFO L87 Difference]: Start difference. First operand 138 states and 146 transitions. Second operand 6 states. [2019-11-21 11:58:42,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:42,217 INFO L93 Difference]: Finished difference Result 144 states and 152 transitions. [2019-11-21 11:58:42,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:58:42,220 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-21 11:58:42,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:42,222 INFO L225 Difference]: With dead ends: 144 [2019-11-21 11:58:42,222 INFO L226 Difference]: Without dead ends: 140 [2019-11-21 11:58:42,222 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:58:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-11-21 11:58:42,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-11-21 11:58:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-11-21 11:58:42,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 148 transitions. [2019-11-21 11:58:42,245 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 148 transitions. Word has length 32 [2019-11-21 11:58:42,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:42,248 INFO L462 AbstractCegarLoop]: Abstraction has 140 states and 148 transitions. [2019-11-21 11:58:42,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:58:42,248 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 148 transitions. [2019-11-21 11:58:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 11:58:42,249 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:42,249 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:42,451 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:42,452 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:42,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:42,453 INFO L82 PathProgramCache]: Analyzing trace with hash -288526373, now seen corresponding path program 1 times [2019-11-21 11:58:42,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:42,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [719697694] [2019-11-21 11:58:42,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:42,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:58:42,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:42,781 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:42,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:42,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [719697694] [2019-11-21 11:58:42,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:58:42,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-21 11:58:42,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156800306] [2019-11-21 11:58:42,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 11:58:42,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:42,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 11:58:42,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-21 11:58:42,928 INFO L87 Difference]: Start difference. First operand 140 states and 148 transitions. Second operand 10 states. [2019-11-21 11:58:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:43,143 INFO L93 Difference]: Finished difference Result 148 states and 158 transitions. [2019-11-21 11:58:43,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:58:43,144 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-11-21 11:58:43,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:43,145 INFO L225 Difference]: With dead ends: 148 [2019-11-21 11:58:43,146 INFO L226 Difference]: Without dead ends: 144 [2019-11-21 11:58:43,146 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:58:43,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-11-21 11:58:43,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-11-21 11:58:43,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-21 11:58:43,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2019-11-21 11:58:43,154 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 34 [2019-11-21 11:58:43,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:43,155 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2019-11-21 11:58:43,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 11:58:43,155 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2019-11-21 11:58:43,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-21 11:58:43,157 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:43,157 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:43,361 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:43,361 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:43,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:43,362 INFO L82 PathProgramCache]: Analyzing trace with hash 538282411, now seen corresponding path program 1 times [2019-11-21 11:58:43,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:43,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [770242536] [2019-11-21 11:58:43,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:43,619 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 11:58:43,622 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:43,636 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 11:58:43,636 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:43,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 11:58:43,887 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [770242536] [2019-11-21 11:58:43,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:43,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 11:58:43,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278789302] [2019-11-21 11:58:43,888 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 11:58:43,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:43,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 11:58:43,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:58:43,889 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand 3 states. [2019-11-21 11:58:44,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:44,055 INFO L93 Difference]: Finished difference Result 157 states and 165 transitions. [2019-11-21 11:58:44,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 11:58:44,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2019-11-21 11:58:44,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:44,058 INFO L225 Difference]: With dead ends: 157 [2019-11-21 11:58:44,058 INFO L226 Difference]: Without dead ends: 137 [2019-11-21 11:58:44,058 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:58:44,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-21 11:58:44,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 127. [2019-11-21 11:58:44,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-11-21 11:58:44,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 133 transitions. [2019-11-21 11:58:44,064 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 133 transitions. Word has length 36 [2019-11-21 11:58:44,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:44,064 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 133 transitions. [2019-11-21 11:58:44,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 11:58:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 133 transitions. [2019-11-21 11:58:44,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 11:58:44,066 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:44,066 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:44,268 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:44,269 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:44,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:44,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1823891355, now seen corresponding path program 2 times [2019-11-21 11:58:44,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:44,271 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1313714619] [2019-11-21 11:58:44,271 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:44,566 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 11:58:44,566 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:58:44,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 11:58:44,570 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:44,577 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:58:44,577 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:58:44,580 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:58:44,581 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:58:44,581 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:58:44,811 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-21 11:58:44,811 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-21 11:58:44,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1313714619] [2019-11-21 11:58:44,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:44,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-21 11:58:44,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25554773] [2019-11-21 11:58:44,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 11:58:44,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:44,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 11:58:44,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:58:44,892 INFO L87 Difference]: Start difference. First operand 127 states and 133 transitions. Second operand 13 states. [2019-11-21 11:58:46,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:46,096 INFO L93 Difference]: Finished difference Result 152 states and 166 transitions. [2019-11-21 11:58:46,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 11:58:46,097 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2019-11-21 11:58:46,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:46,098 INFO L225 Difference]: With dead ends: 152 [2019-11-21 11:58:46,098 INFO L226 Difference]: Without dead ends: 152 [2019-11-21 11:58:46,099 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-21 11:58:46,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-21 11:58:46,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 126. [2019-11-21 11:58:46,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-11-21 11:58:46,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 132 transitions. [2019-11-21 11:58:46,110 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 132 transitions. Word has length 38 [2019-11-21 11:58:46,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:46,111 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 132 transitions. [2019-11-21 11:58:46,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 11:58:46,111 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 132 transitions. [2019-11-21 11:58:46,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 11:58:46,113 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:46,114 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:46,314 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:46,314 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:46,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:46,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1823891356, now seen corresponding path program 1 times [2019-11-21 11:58:46,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:46,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2042767155] [2019-11-21 11:58:46,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:46,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 11:58:46,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:46,792 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:47,165 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:47,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2042767155] [2019-11-21 11:58:47,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:58:47,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-21 11:58:47,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063315387] [2019-11-21 11:58:47,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 11:58:47,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:47,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 11:58:47,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-21 11:58:47,167 INFO L87 Difference]: Start difference. First operand 126 states and 132 transitions. Second operand 18 states. [2019-11-21 11:58:48,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:48,141 INFO L93 Difference]: Finished difference Result 138 states and 150 transitions. [2019-11-21 11:58:48,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 11:58:48,143 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-11-21 11:58:48,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:48,144 INFO L225 Difference]: With dead ends: 138 [2019-11-21 11:58:48,145 INFO L226 Difference]: Without dead ends: 134 [2019-11-21 11:58:48,145 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-11-21 11:58:48,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-11-21 11:58:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-11-21 11:58:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-21 11:58:48,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 140 transitions. [2019-11-21 11:58:48,156 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 140 transitions. Word has length 38 [2019-11-21 11:58:48,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:48,158 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 140 transitions. [2019-11-21 11:58:48,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 11:58:48,159 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 140 transitions. [2019-11-21 11:58:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 11:58:48,160 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:48,160 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:48,373 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:48,374 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:48,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:48,375 INFO L82 PathProgramCache]: Analyzing trace with hash 369008412, now seen corresponding path program 2 times [2019-11-21 11:58:48,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:48,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1121633985] [2019-11-21 11:58:48,377 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:48,710 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 11:58:48,710 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:58:48,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 11:58:48,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:48,727 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:58:48,727 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:58:48,733 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:58:48,734 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:58:48,734 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:58:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-21 11:58:49,026 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-21 11:58:49,864 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1121633985] [2019-11-21 11:58:49,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:49,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-21 11:58:49,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368681038] [2019-11-21 11:58:49,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-21 11:58:49,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:49,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-21 11:58:49,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-21 11:58:49,866 INFO L87 Difference]: Start difference. First operand 134 states and 140 transitions. Second operand 23 states. [2019-11-21 11:58:52,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:52,201 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2019-11-21 11:58:52,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 11:58:52,202 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-11-21 11:58:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:52,204 INFO L225 Difference]: With dead ends: 133 [2019-11-21 11:58:52,204 INFO L226 Difference]: Without dead ends: 133 [2019-11-21 11:58:52,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-21 11:58:52,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-21 11:58:52,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-11-21 11:58:52,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-11-21 11:58:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 139 transitions. [2019-11-21 11:58:52,210 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 139 transitions. Word has length 46 [2019-11-21 11:58:52,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:52,210 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 139 transitions. [2019-11-21 11:58:52,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-21 11:58:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 139 transitions. [2019-11-21 11:58:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-21 11:58:52,211 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:52,211 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:52,414 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:52,415 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:52,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:52,415 INFO L82 PathProgramCache]: Analyzing trace with hash 2053907374, now seen corresponding path program 1 times [2019-11-21 11:58:52,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:52,416 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1065031728] [2019-11-21 11:58:52,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:58:52,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-21 11:58:52,792 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:53,002 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:53,002 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:53,113 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 11:58:54,084 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:58:54,084 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1065031728] [2019-11-21 11:58:54,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:58:54,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-11-21 11:58:54,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666843741] [2019-11-21 11:58:54,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-21 11:58:54,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:54,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-21 11:58:54,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=802, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 11:58:54,086 INFO L87 Difference]: Start difference. First operand 133 states and 139 transitions. Second operand 34 states. [2019-11-21 11:58:56,455 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 14 [2019-11-21 11:58:58,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:58:58,239 INFO L93 Difference]: Finished difference Result 151 states and 169 transitions. [2019-11-21 11:58:58,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-21 11:58:58,241 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-11-21 11:58:58,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:58:58,242 INFO L225 Difference]: With dead ends: 151 [2019-11-21 11:58:58,242 INFO L226 Difference]: Without dead ends: 147 [2019-11-21 11:58:58,243 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=736, Invalid=1426, Unknown=0, NotChecked=0, Total=2162 [2019-11-21 11:58:58,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-11-21 11:58:58,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2019-11-21 11:58:58,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2019-11-21 11:58:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 153 transitions. [2019-11-21 11:58:58,249 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 153 transitions. Word has length 51 [2019-11-21 11:58:58,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:58:58,249 INFO L462 AbstractCegarLoop]: Abstraction has 147 states and 153 transitions. [2019-11-21 11:58:58,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-21 11:58:58,250 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 153 transitions. [2019-11-21 11:58:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 11:58:58,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:58:58,251 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:58:58,454 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:58,455 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:58:58,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:58:58,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1468740750, now seen corresponding path program 2 times [2019-11-21 11:58:58,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:58:58,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [532381521] [2019-11-21 11:58:58,458 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:58:58,797 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 11:58:58,797 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:58:58,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 11:58:58,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:58:58,806 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:58:58,806 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:58:58,814 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:58:58,814 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:58:58,815 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:58:59,024 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:58:59,024 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:58:59,094 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:58:59,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [532381521] [2019-11-21 11:58:59,100 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:58:59,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-21 11:58:59,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130486496] [2019-11-21 11:58:59,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 11:58:59,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:58:59,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 11:58:59,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:58:59,103 INFO L87 Difference]: Start difference. First operand 147 states and 153 transitions. Second operand 13 states. [2019-11-21 11:59:00,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:00,074 INFO L93 Difference]: Finished difference Result 171 states and 185 transitions. [2019-11-21 11:59:00,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 11:59:00,075 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2019-11-21 11:59:00,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:00,076 INFO L225 Difference]: With dead ends: 171 [2019-11-21 11:59:00,076 INFO L226 Difference]: Without dead ends: 171 [2019-11-21 11:59:00,076 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 114 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-21 11:59:00,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-11-21 11:59:00,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 145. [2019-11-21 11:59:00,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-21 11:59:00,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 151 transitions. [2019-11-21 11:59:00,084 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 151 transitions. Word has length 65 [2019-11-21 11:59:00,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:00,084 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 151 transitions. [2019-11-21 11:59:00,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 11:59:00,084 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 151 transitions. [2019-11-21 11:59:00,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 11:59:00,085 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:00,085 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:00,289 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:00,289 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:00,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:00,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1468740751, now seen corresponding path program 1 times [2019-11-21 11:59:00,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:00,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [465221979] [2019-11-21 11:59:00,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:00,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 11:59:00,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:00,923 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:59:00,923 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:00,929 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:00,929 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:00,929 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:59:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:01,171 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:01,992 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:01,993 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [465221979] [2019-11-21 11:59:01,993 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:01,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-21 11:59:01,994 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322772271] [2019-11-21 11:59:01,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-21 11:59:01,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:01,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-21 11:59:01,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-21 11:59:01,995 INFO L87 Difference]: Start difference. First operand 145 states and 151 transitions. Second operand 23 states. [2019-11-21 11:59:04,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:04,235 INFO L93 Difference]: Finished difference Result 143 states and 149 transitions. [2019-11-21 11:59:04,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 11:59:04,235 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2019-11-21 11:59:04,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:04,237 INFO L225 Difference]: With dead ends: 143 [2019-11-21 11:59:04,237 INFO L226 Difference]: Without dead ends: 143 [2019-11-21 11:59:04,238 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-21 11:59:04,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-21 11:59:04,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-11-21 11:59:04,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-11-21 11:59:04,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 149 transitions. [2019-11-21 11:59:04,243 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 149 transitions. Word has length 65 [2019-11-21 11:59:04,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:04,244 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 149 transitions. [2019-11-21 11:59:04,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-21 11:59:04,244 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 149 transitions. [2019-11-21 11:59:04,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-11-21 11:59:04,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:04,245 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:04,447 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:04,448 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:04,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:04,448 INFO L82 PathProgramCache]: Analyzing trace with hash 505242288, now seen corresponding path program 1 times [2019-11-21 11:59:04,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:04,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [424543668] [2019-11-21 11:59:04,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:04,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:59:04,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:04,820 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:04,930 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:04,930 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [424543668] [2019-11-21 11:59:04,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:04,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-21 11:59:04,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250742477] [2019-11-21 11:59:04,932 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 11:59:04,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:04,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 11:59:04,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-21 11:59:04,934 INFO L87 Difference]: Start difference. First operand 143 states and 149 transitions. Second operand 8 states. [2019-11-21 11:59:04,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:04,995 INFO L93 Difference]: Finished difference Result 145 states and 150 transitions. [2019-11-21 11:59:04,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 11:59:04,996 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 72 [2019-11-21 11:59:04,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:04,997 INFO L225 Difference]: With dead ends: 145 [2019-11-21 11:59:04,998 INFO L226 Difference]: Without dead ends: 143 [2019-11-21 11:59:04,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:59:04,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-21 11:59:05,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-11-21 11:59:05,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-11-21 11:59:05,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 148 transitions. [2019-11-21 11:59:05,004 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 148 transitions. Word has length 72 [2019-11-21 11:59:05,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:05,004 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 148 transitions. [2019-11-21 11:59:05,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 11:59:05,004 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 148 transitions. [2019-11-21 11:59:05,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-21 11:59:05,005 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:05,006 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:05,210 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:05,210 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:05,210 INFO L82 PathProgramCache]: Analyzing trace with hash 2022338133, now seen corresponding path program 1 times [2019-11-21 11:59:05,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:05,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1164320489] [2019-11-21 11:59:05,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:05,547 INFO L255 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 11:59:05,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:05,615 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:05,615 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:05,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:59:05,884 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:05,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1164320489] [2019-11-21 11:59:05,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:05,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-11-21 11:59:05,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340266942] [2019-11-21 11:59:05,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 11:59:05,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:05,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 11:59:05,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-21 11:59:05,886 INFO L87 Difference]: Start difference. First operand 143 states and 148 transitions. Second operand 11 states. [2019-11-21 11:59:05,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:05,995 INFO L93 Difference]: Finished difference Result 147 states and 151 transitions. [2019-11-21 11:59:05,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-21 11:59:05,996 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2019-11-21 11:59:05,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:05,997 INFO L225 Difference]: With dead ends: 147 [2019-11-21 11:59:05,997 INFO L226 Difference]: Without dead ends: 143 [2019-11-21 11:59:05,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:59:05,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-11-21 11:59:06,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-11-21 11:59:06,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-11-21 11:59:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 147 transitions. [2019-11-21 11:59:06,003 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 147 transitions. Word has length 77 [2019-11-21 11:59:06,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:06,003 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 147 transitions. [2019-11-21 11:59:06,004 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 11:59:06,004 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 147 transitions. [2019-11-21 11:59:06,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-21 11:59:06,005 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:06,005 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:06,208 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:06,209 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:06,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:06,210 INFO L82 PathProgramCache]: Analyzing trace with hash 475142274, now seen corresponding path program 1 times [2019-11-21 11:59:06,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:06,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [158344715] [2019-11-21 11:59:06,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:06,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-21 11:59:06,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:06,777 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:59:06,777 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:06,779 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:06,779 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:06,780 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:59:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:07,328 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:07,787 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [158344715] [2019-11-21 11:59:07,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:07,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 16] imperfect sequences [] total 21 [2019-11-21 11:59:07,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994720139] [2019-11-21 11:59:07,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 11:59:07,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:07,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 11:59:07,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2019-11-21 11:59:07,789 INFO L87 Difference]: Start difference. First operand 143 states and 147 transitions. Second operand 22 states. [2019-11-21 11:59:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:09,947 INFO L93 Difference]: Finished difference Result 195 states and 212 transitions. [2019-11-21 11:59:09,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-21 11:59:09,948 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2019-11-21 11:59:09,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:09,949 INFO L225 Difference]: With dead ends: 195 [2019-11-21 11:59:09,949 INFO L226 Difference]: Without dead ends: 195 [2019-11-21 11:59:09,950 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 150 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2019-11-21 11:59:09,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-11-21 11:59:09,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 169. [2019-11-21 11:59:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-21 11:59:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 179 transitions. [2019-11-21 11:59:09,958 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 179 transitions. Word has length 88 [2019-11-21 11:59:09,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:09,959 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 179 transitions. [2019-11-21 11:59:09,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 11:59:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 179 transitions. [2019-11-21 11:59:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-21 11:59:09,960 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:09,960 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:10,172 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:10,173 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:10,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:10,173 INFO L82 PathProgramCache]: Analyzing trace with hash 475142275, now seen corresponding path program 1 times [2019-11-21 11:59:10,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:10,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [328300337] [2019-11-21 11:59:10,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:10,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 44 conjunts are in the unsatisfiable core [2019-11-21 11:59:10,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:10,893 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:59:10,894 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:10,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:10,900 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:10,900 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:59:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:11,435 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:13,745 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [328300337] [2019-11-21 11:59:13,745 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:13,745 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 18] imperfect sequences [] total 38 [2019-11-21 11:59:13,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750960222] [2019-11-21 11:59:13,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-21 11:59:13,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:13,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-21 11:59:13,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1373, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 11:59:13,749 INFO L87 Difference]: Start difference. First operand 169 states and 179 transitions. Second operand 39 states. [2019-11-21 11:59:17,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:17,989 INFO L93 Difference]: Finished difference Result 167 states and 175 transitions. [2019-11-21 11:59:17,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-21 11:59:17,990 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 88 [2019-11-21 11:59:17,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:17,992 INFO L225 Difference]: With dead ends: 167 [2019-11-21 11:59:17,992 INFO L226 Difference]: Without dead ends: 167 [2019-11-21 11:59:17,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 134 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=157, Invalid=1913, Unknown=0, NotChecked=0, Total=2070 [2019-11-21 11:59:17,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-11-21 11:59:17,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-11-21 11:59:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-21 11:59:18,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2019-11-21 11:59:18,001 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 88 [2019-11-21 11:59:18,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:18,002 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 175 transitions. [2019-11-21 11:59:18,002 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-21 11:59:18,002 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 175 transitions. [2019-11-21 11:59:18,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-11-21 11:59:18,004 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:18,004 INFO L410 BasicCegarLoop]: trace histogram [28, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:18,210 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:18,210 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:18,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:18,211 INFO L82 PathProgramCache]: Analyzing trace with hash 308585608, now seen corresponding path program 1 times [2019-11-21 11:59:18,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:18,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1068019229] [2019-11-21 11:59:18,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:18,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 11:59:18,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:18,712 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:18,713 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:18,801 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:59:18,973 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:18,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1068019229] [2019-11-21 11:59:18,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:18,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2019-11-21 11:59:18,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26723417] [2019-11-21 11:59:18,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 11:59:18,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:18,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 11:59:18,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-21 11:59:18,977 INFO L87 Difference]: Start difference. First operand 167 states and 175 transitions. Second operand 14 states. [2019-11-21 11:59:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:19,176 INFO L93 Difference]: Finished difference Result 171 states and 177 transitions. [2019-11-21 11:59:19,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 11:59:19,178 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 95 [2019-11-21 11:59:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:19,180 INFO L225 Difference]: With dead ends: 171 [2019-11-21 11:59:19,180 INFO L226 Difference]: Without dead ends: 165 [2019-11-21 11:59:19,180 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-21 11:59:19,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-21 11:59:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2019-11-21 11:59:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-11-21 11:59:19,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 171 transitions. [2019-11-21 11:59:19,194 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 171 transitions. Word has length 95 [2019-11-21 11:59:19,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:19,196 INFO L462 AbstractCegarLoop]: Abstraction has 165 states and 171 transitions. [2019-11-21 11:59:19,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 11:59:19,198 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 171 transitions. [2019-11-21 11:59:19,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-11-21 11:59:19,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:19,201 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:19,415 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:19,417 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:19,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:19,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1131496099, now seen corresponding path program 1 times [2019-11-21 11:59:19,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:19,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1913323285] [2019-11-21 11:59:19,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:20,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 46 conjunts are in the unsatisfiable core [2019-11-21 11:59:20,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:20,075 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:59:20,075 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:20,077 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:20,077 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:20,077 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:59:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:20,598 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:21,120 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:21,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1913323285] [2019-11-21 11:59:21,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:21,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25, 20] imperfect sequences [] total 25 [2019-11-21 11:59:21,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606354420] [2019-11-21 11:59:21,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-21 11:59:21,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:21,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-21 11:59:21,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2019-11-21 11:59:21,123 INFO L87 Difference]: Start difference. First operand 165 states and 171 transitions. Second operand 26 states. [2019-11-21 11:59:23,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:23,736 INFO L93 Difference]: Finished difference Result 198 states and 214 transitions. [2019-11-21 11:59:23,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-21 11:59:23,737 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 101 [2019-11-21 11:59:23,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:23,738 INFO L225 Difference]: With dead ends: 198 [2019-11-21 11:59:23,738 INFO L226 Difference]: Without dead ends: 198 [2019-11-21 11:59:23,739 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 166 SyntacticMatches, 11 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 11:59:23,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2019-11-21 11:59:23,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 171. [2019-11-21 11:59:23,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-21 11:59:23,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 181 transitions. [2019-11-21 11:59:23,746 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 181 transitions. Word has length 101 [2019-11-21 11:59:23,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:23,748 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 181 transitions. [2019-11-21 11:59:23,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-21 11:59:23,748 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 181 transitions. [2019-11-21 11:59:23,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-11-21 11:59:23,750 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:23,750 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:23,955 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:23,956 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:23,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:23,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1131496100, now seen corresponding path program 1 times [2019-11-21 11:59:23,957 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:23,960 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1139900848] [2019-11-21 11:59:23,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:24,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 56 conjunts are in the unsatisfiable core [2019-11-21 11:59:24,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:24,760 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:59:24,761 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:24,767 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:24,767 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:24,767 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:59:25,521 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:25,521 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:28,664 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:28,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1139900848] [2019-11-21 11:59:28,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:28,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25, 22] imperfect sequences [] total 46 [2019-11-21 11:59:28,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120115164] [2019-11-21 11:59:28,666 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-11-21 11:59:28,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:28,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-11-21 11:59:28,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2029, Unknown=0, NotChecked=0, Total=2162 [2019-11-21 11:59:28,667 INFO L87 Difference]: Start difference. First operand 171 states and 181 transitions. Second operand 47 states. [2019-11-21 11:59:35,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:35,006 INFO L93 Difference]: Finished difference Result 169 states and 178 transitions. [2019-11-21 11:59:35,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-21 11:59:35,006 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 101 [2019-11-21 11:59:35,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:35,008 INFO L225 Difference]: With dead ends: 169 [2019-11-21 11:59:35,008 INFO L226 Difference]: Without dead ends: 169 [2019-11-21 11:59:35,009 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 150 SyntacticMatches, 6 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=195, Invalid=2885, Unknown=0, NotChecked=0, Total=3080 [2019-11-21 11:59:35,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-11-21 11:59:35,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2019-11-21 11:59:35,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-21 11:59:35,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 178 transitions. [2019-11-21 11:59:35,017 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 178 transitions. Word has length 101 [2019-11-21 11:59:35,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:35,017 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 178 transitions. [2019-11-21 11:59:35,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-11-21 11:59:35,017 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 178 transitions. [2019-11-21 11:59:35,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-11-21 11:59:35,019 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:35,019 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:35,224 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:35,225 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:35,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1497191636, now seen corresponding path program 1 times [2019-11-21 11:59:35,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:35,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1527600378] [2019-11-21 11:59:35,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:36,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-21 11:59:36,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:37,231 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:59:38,106 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:59:38,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1527600378] [2019-11-21 11:59:38,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:59:38,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22, 21] imperfect sequences [] total 42 [2019-11-21 11:59:38,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814402191] [2019-11-21 11:59:38,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-11-21 11:59:38,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:59:38,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-11-21 11:59:38,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2019-11-21 11:59:38,110 INFO L87 Difference]: Start difference. First operand 169 states and 178 transitions. Second operand 43 states. [2019-11-21 11:59:41,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:59:41,085 INFO L93 Difference]: Finished difference Result 168 states and 177 transitions. [2019-11-21 11:59:41,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-21 11:59:41,087 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 104 [2019-11-21 11:59:41,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:59:41,088 INFO L225 Difference]: With dead ends: 168 [2019-11-21 11:59:41,088 INFO L226 Difference]: Without dead ends: 168 [2019-11-21 11:59:41,089 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 163 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=179, Invalid=2371, Unknown=0, NotChecked=0, Total=2550 [2019-11-21 11:59:41,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-21 11:59:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2019-11-21 11:59:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-21 11:59:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 177 transitions. [2019-11-21 11:59:41,095 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 177 transitions. Word has length 104 [2019-11-21 11:59:41,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:59:41,096 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 177 transitions. [2019-11-21 11:59:41,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-11-21 11:59:41,096 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 177 transitions. [2019-11-21 11:59:41,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-11-21 11:59:41,097 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:59:41,098 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:59:41,303 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:41,304 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:59:41,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:59:41,305 INFO L82 PathProgramCache]: Analyzing trace with hash -399029977, now seen corresponding path program 1 times [2019-11-21 11:59:41,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:59:41,306 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [649241662] [2019-11-21 11:59:41,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:59:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:59:42,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 144 conjunts are in the unsatisfiable core [2019-11-21 11:59:42,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:59:42,546 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2019-11-21 11:59:42,547 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:42,557 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:42,557 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:42,557 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2019-11-21 11:59:42,616 INFO L343 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2019-11-21 11:59:42,616 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2019-11-21 11:59:42,616 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:42,633 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:42,633 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:42,633 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2019-11-21 11:59:42,753 INFO L343 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2019-11-21 11:59:42,753 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 43 [2019-11-21 11:59:42,754 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:42,781 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:42,781 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:42,782 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:44, output treesize:40 [2019-11-21 11:59:42,946 INFO L343 Elim1Store]: treesize reduction 110, result has 19.1 percent of original size [2019-11-21 11:59:42,946 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 52 [2019-11-21 11:59:42,947 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:43,024 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:43,025 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:43,025 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:52, output treesize:48 [2019-11-21 11:59:43,338 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2019-11-21 11:59:43,339 INFO L343 Elim1Store]: treesize reduction 66, result has 69.3 percent of original size [2019-11-21 11:59:43,339 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 181 [2019-11-21 11:59:43,342 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:45,493 WARN L192 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2019-11-21 11:59:45,494 INFO L567 ElimStorePlain]: treesize reduction 114, result has 33.7 percent of original size [2019-11-21 11:59:45,494 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:45,494 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:62, output treesize:58 [2019-11-21 11:59:45,700 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 28 [2019-11-21 11:59:45,701 INFO L343 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2019-11-21 11:59:45,701 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 80 [2019-11-21 11:59:45,702 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:45,735 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:59:45,735 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:45,735 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2019-11-21 11:59:46,437 WARN L192 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 69 [2019-11-21 11:59:46,438 INFO L343 Elim1Store]: treesize reduction 170, result has 57.2 percent of original size [2019-11-21 11:59:46,438 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 81 treesize of output 269 [2019-11-21 11:59:46,439 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:59:48,680 WARN L192 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2019-11-21 11:59:48,680 INFO L567 ElimStorePlain]: treesize reduction 174, result has 32.0 percent of original size [2019-11-21 11:59:48,681 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:59:48,681 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:86, output treesize:82 [2019-11-21 12:01:02,635 WARN L192 SmtUtils]: Spent 1.23 m on a formula simplification. DAG size of input: 163 DAG size of output: 98 [2019-11-21 12:01:02,636 INFO L343 Elim1Store]: treesize reduction 203, result has 60.7 percent of original size [2019-11-21 12:01:02,636 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 93 treesize of output 360 [2019-11-21 12:01:02,637 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:04,896 WARN L192 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2019-11-21 12:01:04,896 INFO L567 ElimStorePlain]: treesize reduction 174, result has 34.6 percent of original size [2019-11-21 12:01:04,897 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:01:04,897 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:92 [2019-11-21 12:03:32,623 WARN L192 SmtUtils]: Spent 2.46 m on a formula simplification. DAG size of input: 201 DAG size of output: 127 [2019-11-21 12:03:32,624 INFO L343 Elim1Store]: treesize reduction 250, result has 61.5 percent of original size [2019-11-21 12:03:32,624 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 105 treesize of output 451 [2019-11-21 12:03:32,626 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:03:32,906 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 45 [2019-11-21 12:03:32,907 INFO L567 ElimStorePlain]: treesize reduction 304, result has 25.5 percent of original size [2019-11-21 12:03:32,907 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:03:32,907 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:104 [2019-11-21 12:06:58,705 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-21 12:06:58,906 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:06:58,907 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:118) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:182) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:163) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:133) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:220) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:361) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 55 more [2019-11-21 12:06:58,915 INFO L168 Benchmark]: Toolchain (without parser) took 504541.87 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 497.5 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -78.2 MB). Peak memory consumption was 419.3 MB. Max. memory is 11.5 GB. [2019-11-21 12:06:58,915 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:06:58,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 838.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-21 12:06:58,916 INFO L168 Benchmark]: Boogie Preprocessor took 106.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:06:58,917 INFO L168 Benchmark]: RCFGBuilder took 1528.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.8 MB in the end (delta: 108.1 MB). Peak memory consumption was 108.1 MB. Max. memory is 11.5 GB. [2019-11-21 12:06:58,917 INFO L168 Benchmark]: TraceAbstraction took 502060.28 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 341.8 MB). Free memory was 997.8 MB in the beginning and 1.0 GB in the end (delta: -36.7 MB). Peak memory consumption was 305.1 MB. Max. memory is 11.5 GB. [2019-11-21 12:06:58,919 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 838.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -161.4 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 106.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1528.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.8 MB in the end (delta: 108.1 MB). Peak memory consumption was 108.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 502060.28 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 341.8 MB). Free memory was 997.8 MB in the beginning and 1.0 GB in the end (delta: -36.7 MB). Peak memory consumption was 305.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...