./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 701f399f 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_4.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 8e9fad8e4cf3911fa9881577a543d060495d5513 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-701f399 [2019-11-22 09:38:59,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:38:59,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:38:59,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:38:59,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:38:59,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:38:59,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:38:59,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:38:59,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:38:59,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:38:59,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:38:59,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:38:59,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:38:59,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:38:59,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:38:59,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:38:59,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:38:59,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:38:59,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:38:59,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:38:59,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:38:59,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:38:59,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:38:59,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:38:59,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:38:59,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:38:59,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:38:59,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:38:59,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:38:59,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:38:59,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:38:59,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:38:59,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:38:59,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:38:59,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:38:59,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:38:59,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:38:59,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:38:59,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:38:59,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:38:59,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:38:59,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 09:38:59,426 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:38:59,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:38:59,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:38:59,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:38:59,428 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:38:59,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:38:59,428 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 09:38:59,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 09:38:59,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:38:59,429 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 09:38:59,429 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 09:38:59,429 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 09:38:59,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:38:59,430 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 09:38:59,430 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 09:38:59,430 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 09:38:59,430 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:38:59,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:38:59,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:38:59,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:38:59,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:38:59,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:38:59,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:38:59,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:38:59,432 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 09:38:59,432 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 09:38:59,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:38:59,433 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 -> 8e9fad8e4cf3911fa9881577a543d060495d5513 [2019-11-22 09:38:59,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:38:59,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:38:59,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:38:59,738 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:38:59,739 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:38:59,739 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-11-22 09:38:59,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6ccf84f/d4b5a3c5bbe54770a9ec124d573ff144/FLAGc781101ef [2019-11-22 09:39:00,366 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:39:00,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_4.i [2019-11-22 09:39:00,387 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6ccf84f/d4b5a3c5bbe54770a9ec124d573ff144/FLAGc781101ef [2019-11-22 09:39:00,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6ccf84f/d4b5a3c5bbe54770a9ec124d573ff144 [2019-11-22 09:39:00,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:39:00,668 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 09:39:00,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:39:00,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:39:00,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:39:00,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:39:00" (1/1) ... [2019-11-22 09:39:00,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb8afde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:00, skipping insertion in model container [2019-11-22 09:39:00,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:39:00" (1/1) ... [2019-11-22 09:39:00,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:39:00,739 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:39:01,161 INFO L965 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 [2019-11-22 09:39:01,162 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-22 09:39:01,163 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:39:01,181 INFO L965 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 [2019-11-22 09:39:01,181 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-22 09:39:01,182 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:39:01,187 INFO L965 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 [2019-11-22 09:39:01,187 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-22 09:39:01,187 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:39:01,192 INFO L965 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 [2019-11-22 09:39:01,193 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-22 09:39:01,193 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:39:01,239 INFO L965 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 [2019-11-22 09:39:01,239 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-22 09:39:01,245 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:39:01,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:39:01,299 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 09:39:01,329 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:39:01,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:39:01,417 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:39:01,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:39:01,572 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:39:01,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01 WrapperNode [2019-11-22 09:39:01,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:39:01,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:39:01,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:39:01,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:39:01,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (1/1) ... [2019-11-22 09:39:01,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (1/1) ... [2019-11-22 09:39:01,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (1/1) ... [2019-11-22 09:39:01,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (1/1) ... [2019-11-22 09:39:01,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (1/1) ... [2019-11-22 09:39:01,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (1/1) ... [2019-11-22 09:39:01,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (1/1) ... [2019-11-22 09:39:01,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:39:01,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:39:01,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:39:01,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:39:01,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (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 [2019-11-22 09:39:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 09:39:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:39:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:39:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:39:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 09:39:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 09:39:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 09:39:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 09:39:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 09:39:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 09:39:01,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 09:39:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 09:39:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 09:39:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:39:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 09:39:01,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 09:39:01,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 09:39:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 09:39:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 09:39:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 09:39:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 09:39:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 09:39:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 09:39:01,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 09:39:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 09:39:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 09:39:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 09:39:01,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 09:39:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 09:39:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 09:39:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 09:39:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 09:39:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 09:39:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 09:39:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 09:39:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 09:39:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 09:39:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 09:39:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 09:39:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 09:39:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 09:39:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 09:39:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2019-11-22 09:39:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2019-11-22 09:39:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 09:39:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 09:39:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 09:39:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 09:39:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 09:39:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 09:39:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 09:39:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 09:39:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 09:39:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 09:39:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 09:39:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 09:39:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 09:39:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 09:39:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 09:39:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 09:39:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 09:39:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 09:39:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 09:39:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 09:39:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 09:39:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 09:39:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 09:39:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 09:39:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 09:39:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 09:39:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 09:39:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 09:39:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 09:39:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 09:39:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 09:39:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 09:39:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 09:39:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 09:39:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 09:39:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 09:39:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 09:39:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 09:39:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 09:39:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 09:39:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 09:39:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 09:39:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 09:39:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 09:39:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 09:39:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 09:39:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 09:39:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 09:39:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 09:39:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 09:39:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 09:39:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 09:39:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 09:39:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 09:39:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 09:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 09:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 09:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 09:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 09:39:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 09:39:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 09:39:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 09:39:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 09:39:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 09:39:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 09:39:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 09:39:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 09:39:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 09:39:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 09:39:01,770 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 09:39:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 09:39:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 09:39:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 09:39:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 09:39:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 09:39:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 09:39:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 09:39:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 09:39:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 09:39:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 09:39:01,776 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 09:39:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 09:39:01,777 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 09:39:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 09:39:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 09:39:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 09:39:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 09:39:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 09:39:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 09:39:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 09:39:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 09:39:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 09:39:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 09:39:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 09:39:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 09:39:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 09:39:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 09:39:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 09:39:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 09:39:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 09:39:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 09:39:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 09:39:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 09:39:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 09:39:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 09:39:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 09:39:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 09:39:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 09:39:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 09:39:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 09:39:01,790 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 09:39:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 09:39:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 09:39:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 09:39:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 09:39:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 09:39:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 09:39:01,792 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 09:39:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 09:39:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 09:39:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 09:39:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 09:39:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 09:39:01,793 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:39:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 09:39:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 09:39:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 09:39:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 09:39:01,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 09:39:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 09:39:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 09:39:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 09:39:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 09:39:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 09:39:01,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 09:39:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 09:39:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 09:39:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 09:39:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 09:39:01,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 09:39:01,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 09:39:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 09:39:01,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 09:39:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 09:39:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 09:39:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:39:01,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 09:39:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 09:39:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 09:39:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 09:39:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 09:39:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 09:39:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 09:39:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 09:39:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 09:39:01,802 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 09:39:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 09:39:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 09:39:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 09:39:01,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:39:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:39:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 09:39:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 09:39:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 09:39:01,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 09:39:02,514 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:39:02,940 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:39:03,348 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:39:03,348 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-22 09:39:03,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:39:03 BoogieIcfgContainer [2019-11-22 09:39:03,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:39:03,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:39:03,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:39:03,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:39:03,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:39:00" (1/3) ... [2019-11-22 09:39:03,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d07b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:39:03, skipping insertion in model container [2019-11-22 09:39:03,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:39:01" (2/3) ... [2019-11-22 09:39:03,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d07b5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:39:03, skipping insertion in model container [2019-11-22 09:39:03,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:39:03" (3/3) ... [2019-11-22 09:39:03,359 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_4.i [2019-11-22 09:39:03,370 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:39:03,385 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-11-22 09:39:03,397 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-11-22 09:39:03,423 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:39:03,424 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 09:39:03,424 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:39:03,424 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:39:03,424 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:39:03,424 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:39:03,427 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:39:03,432 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:39:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2019-11-22 09:39:03,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:39:03,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:03,473 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:39:03,474 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]=== [2019-11-22 09:39:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:03,480 INFO L82 PathProgramCache]: Analyzing trace with hash -604206848, now seen corresponding path program 1 times [2019-11-22 09:39:03,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:03,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1049371197] [2019-11-22 09:39:03,493 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 [2019-11-22 09:39:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:03,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:39:03,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:03,985 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 [2019-11-22 09:39:03,986 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:03,999 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:04,001 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:04,001 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:39:04,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:04,052 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:04,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:04,161 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1049371197] [2019-11-22 09:39:04,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:04,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 09:39:04,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845258091] [2019-11-22 09:39:04,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:39:04,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:04,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:39:04,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:39:04,204 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 5 states. [2019-11-22 09:39:04,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:04,695 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2019-11-22 09:39:04,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:39:04,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-22 09:39:04,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:04,736 INFO L225 Difference]: With dead ends: 160 [2019-11-22 09:39:04,738 INFO L226 Difference]: Without dead ends: 157 [2019-11-22 09:39:04,743 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 [2019-11-22 09:39:04,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-22 09:39:04,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 151. [2019-11-22 09:39:04,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-22 09:39:04,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 162 transitions. [2019-11-22 09:39:04,840 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 162 transitions. Word has length 17 [2019-11-22 09:39:04,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:04,841 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 162 transitions. [2019-11-22 09:39:04,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:39:04,842 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 162 transitions. [2019-11-22 09:39:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:39:04,843 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:04,843 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:39:05,046 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:05,048 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]=== [2019-11-22 09:39:05,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:05,048 INFO L82 PathProgramCache]: Analyzing trace with hash -604206847, now seen corresponding path program 1 times [2019-11-22 09:39:05,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:05,050 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [68759700] [2019-11-22 09:39:05,050 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 [2019-11-22 09:39:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:05,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-22 09:39:05,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:05,350 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 [2019-11-22 09:39:05,350 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:05,358 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:05,360 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:05,361 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:39:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:05,425 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:05,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:05,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [68759700] [2019-11-22 09:39:05,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:05,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-22 09:39:05,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488680371] [2019-11-22 09:39:05,799 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 09:39:05,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:05,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 09:39:05,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-22 09:39:05,801 INFO L87 Difference]: Start difference. First operand 151 states and 162 transitions. Second operand 10 states. [2019-11-22 09:39:06,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:06,623 INFO L93 Difference]: Finished difference Result 156 states and 167 transitions. [2019-11-22 09:39:06,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:39:06,626 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-22 09:39:06,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:06,628 INFO L225 Difference]: With dead ends: 156 [2019-11-22 09:39:06,628 INFO L226 Difference]: Without dead ends: 156 [2019-11-22 09:39:06,629 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 [2019-11-22 09:39:06,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-11-22 09:39:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 151. [2019-11-22 09:39:06,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-22 09:39:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 161 transitions. [2019-11-22 09:39:06,641 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 161 transitions. Word has length 17 [2019-11-22 09:39:06,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:06,641 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 161 transitions. [2019-11-22 09:39:06,641 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 09:39:06,641 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 161 transitions. [2019-11-22 09:39:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:39:06,642 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:06,642 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:39:06,846 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:06,847 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]=== [2019-11-22 09:39:06,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:06,847 INFO L82 PathProgramCache]: Analyzing trace with hash -575577697, now seen corresponding path program 1 times [2019-11-22 09:39:06,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:06,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1844719683] [2019-11-22 09:39:06,849 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 [2019-11-22 09:39:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:07,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 09:39:07,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:07,129 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:07,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:07,174 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1844719683] [2019-11-22 09:39:07,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:07,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:39:07,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919691558] [2019-11-22 09:39:07,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:39:07,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:07,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:39:07,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:39:07,176 INFO L87 Difference]: Start difference. First operand 151 states and 161 transitions. Second operand 5 states. [2019-11-22 09:39:07,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:07,226 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2019-11-22 09:39:07,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:39:07,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-22 09:39:07,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:07,230 INFO L225 Difference]: With dead ends: 150 [2019-11-22 09:39:07,230 INFO L226 Difference]: Without dead ends: 150 [2019-11-22 09:39:07,231 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 [2019-11-22 09:39:07,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-22 09:39:07,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2019-11-22 09:39:07,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-22 09:39:07,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2019-11-22 09:39:07,242 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 17 [2019-11-22 09:39:07,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:07,243 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2019-11-22 09:39:07,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:39:07,243 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2019-11-22 09:39:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-22 09:39:07,245 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:07,245 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] [2019-11-22 09:39:07,448 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:07,448 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]=== [2019-11-22 09:39:07,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:07,449 INFO L82 PathProgramCache]: Analyzing trace with hash 300911328, now seen corresponding path program 1 times [2019-11-22 09:39:07,449 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:07,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [229965503] [2019-11-22 09:39:07,450 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 [2019-11-22 09:39:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:07,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:39:07,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:07,723 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:07,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:07,810 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [229965503] [2019-11-22 09:39:07,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:07,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:39:07,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001672920] [2019-11-22 09:39:07,810 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:39:07,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:07,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:39:07,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:39:07,812 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand 5 states. [2019-11-22 09:39:07,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:07,842 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2019-11-22 09:39:07,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:39:07,843 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-22 09:39:07,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:07,846 INFO L225 Difference]: With dead ends: 150 [2019-11-22 09:39:07,850 INFO L226 Difference]: Without dead ends: 150 [2019-11-22 09:39:07,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:39:07,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-22 09:39:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2019-11-22 09:39:07,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2019-11-22 09:39:07,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 155 transitions. [2019-11-22 09:39:07,870 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 155 transitions. Word has length 29 [2019-11-22 09:39:07,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:07,870 INFO L462 AbstractCegarLoop]: Abstraction has 148 states and 155 transitions. [2019-11-22 09:39:07,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:39:07,871 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 155 transitions. [2019-11-22 09:39:07,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-22 09:39:07,873 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:07,873 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] [2019-11-22 09:39:08,073 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:08,074 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]=== [2019-11-22 09:39:08,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:08,074 INFO L82 PathProgramCache]: Analyzing trace with hash -696161025, now seen corresponding path program 1 times [2019-11-22 09:39:08,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:08,075 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [926133285] [2019-11-22 09:39:08,075 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 [2019-11-22 09:39:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:08,367 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-22 09:39:08,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:08,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:08,496 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:08,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:08,558 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [926133285] [2019-11-22 09:39:08,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:08,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-11-22 09:39:08,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015272593] [2019-11-22 09:39:08,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 09:39:08,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:08,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 09:39:08,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-22 09:39:08,562 INFO L87 Difference]: Start difference. First operand 148 states and 155 transitions. Second operand 9 states. [2019-11-22 09:39:08,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:08,699 INFO L93 Difference]: Finished difference Result 168 states and 176 transitions. [2019-11-22 09:39:08,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 09:39:08,699 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-11-22 09:39:08,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:08,703 INFO L225 Difference]: With dead ends: 168 [2019-11-22 09:39:08,703 INFO L226 Difference]: Without dead ends: 168 [2019-11-22 09:39:08,704 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-22 09:39:08,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-22 09:39:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2019-11-22 09:39:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-22 09:39:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 169 transitions. [2019-11-22 09:39:08,728 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 169 transitions. Word has length 29 [2019-11-22 09:39:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:08,729 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 169 transitions. [2019-11-22 09:39:08,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 09:39:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 169 transitions. [2019-11-22 09:39:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-22 09:39:08,730 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:08,731 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] [2019-11-22 09:39:08,931 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:08,932 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]=== [2019-11-22 09:39:08,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:08,932 INFO L82 PathProgramCache]: Analyzing trace with hash 536113147, now seen corresponding path program 1 times [2019-11-22 09:39:08,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:08,933 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1372259565] [2019-11-22 09:39:08,934 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 [2019-11-22 09:39:09,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:09,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 09:39:09,228 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:09,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:09,248 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:09,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:09,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1372259565] [2019-11-22 09:39:09,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:09,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 09:39:09,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482297722] [2019-11-22 09:39:09,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 09:39:09,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:09,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 09:39:09,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-22 09:39:09,311 INFO L87 Difference]: Start difference. First operand 162 states and 169 transitions. Second operand 6 states. [2019-11-22 09:39:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:09,360 INFO L93 Difference]: Finished difference Result 168 states and 175 transitions. [2019-11-22 09:39:09,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:39:09,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-22 09:39:09,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:09,362 INFO L225 Difference]: With dead ends: 168 [2019-11-22 09:39:09,362 INFO L226 Difference]: Without dead ends: 164 [2019-11-22 09:39:09,363 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 [2019-11-22 09:39:09,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-22 09:39:09,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2019-11-22 09:39:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-22 09:39:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 171 transitions. [2019-11-22 09:39:09,370 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 171 transitions. Word has length 32 [2019-11-22 09:39:09,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:09,371 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 171 transitions. [2019-11-22 09:39:09,371 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 09:39:09,371 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 171 transitions. [2019-11-22 09:39:09,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-22 09:39:09,372 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:09,372 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] [2019-11-22 09:39:09,575 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:09,576 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]=== [2019-11-22 09:39:09,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:09,577 INFO L82 PathProgramCache]: Analyzing trace with hash 690495131, now seen corresponding path program 1 times [2019-11-22 09:39:09,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:09,578 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1603723139] [2019-11-22 09:39:09,578 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 [2019-11-22 09:39:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:09,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:39:09,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:09,918 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:10,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:10,039 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1603723139] [2019-11-22 09:39:10,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:39:10,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-22 09:39:10,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290960359] [2019-11-22 09:39:10,040 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 09:39:10,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:10,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 09:39:10,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-22 09:39:10,041 INFO L87 Difference]: Start difference. First operand 164 states and 171 transitions. Second operand 10 states. [2019-11-22 09:39:10,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:10,253 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2019-11-22 09:39:10,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 09:39:10,254 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-11-22 09:39:10,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:10,256 INFO L225 Difference]: With dead ends: 172 [2019-11-22 09:39:10,256 INFO L226 Difference]: Without dead ends: 168 [2019-11-22 09:39:10,257 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 [2019-11-22 09:39:10,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-22 09:39:10,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2019-11-22 09:39:10,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-22 09:39:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 175 transitions. [2019-11-22 09:39:10,265 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 175 transitions. Word has length 34 [2019-11-22 09:39:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:10,265 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 175 transitions. [2019-11-22 09:39:10,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 09:39:10,266 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 175 transitions. [2019-11-22 09:39:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-22 09:39:10,267 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:10,268 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] [2019-11-22 09:39:10,471 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:10,472 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]=== [2019-11-22 09:39:10,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:10,473 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385957, now seen corresponding path program 2 times [2019-11-22 09:39:10,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:10,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [23736614] [2019-11-22 09:39:10,474 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 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 [2019-11-22 09:39:10,779 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 09:39:10,779 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:39:10,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 09:39:10,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:10,788 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 [2019-11-22 09:39:10,789 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:10,791 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:10,791 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:10,791 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:39:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-22 09:39:10,972 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:11,091 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-22 09:39:11,092 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [23736614] [2019-11-22 09:39:11,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:11,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-22 09:39:11,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513221784] [2019-11-22 09:39:11,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-22 09:39:11,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:11,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-22 09:39:11,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:39:11,096 INFO L87 Difference]: Start difference. First operand 168 states and 175 transitions. Second operand 13 states. [2019-11-22 09:39:12,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:12,377 INFO L93 Difference]: Finished difference Result 179 states and 185 transitions. [2019-11-22 09:39:12,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 09:39:12,377 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2019-11-22 09:39:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:12,380 INFO L225 Difference]: With dead ends: 179 [2019-11-22 09:39:12,380 INFO L226 Difference]: Without dead ends: 179 [2019-11-22 09:39:12,380 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-22 09:39:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-11-22 09:39:12,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2019-11-22 09:39:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-22 09:39:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 174 transitions. [2019-11-22 09:39:12,387 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 174 transitions. Word has length 38 [2019-11-22 09:39:12,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:12,388 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 174 transitions. [2019-11-22 09:39:12,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-22 09:39:12,388 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 174 transitions. [2019-11-22 09:39:12,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-22 09:39:12,389 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:12,389 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] [2019-11-22 09:39:12,592 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:12,593 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]=== [2019-11-22 09:39:12,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:12,594 INFO L82 PathProgramCache]: Analyzing trace with hash -2002385956, now seen corresponding path program 1 times [2019-11-22 09:39:12,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:12,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1560214300] [2019-11-22 09:39:12,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-22 09:39:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:12,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-22 09:39:12,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:13,024 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:13,357 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:13,358 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1560214300] [2019-11-22 09:39:13,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:39:13,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-22 09:39:13,358 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100292107] [2019-11-22 09:39:13,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 09:39:13,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:13,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 09:39:13,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-22 09:39:13,359 INFO L87 Difference]: Start difference. First operand 167 states and 174 transitions. Second operand 18 states. [2019-11-22 09:39:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:14,386 INFO L93 Difference]: Finished difference Result 179 states and 192 transitions. [2019-11-22 09:39:14,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-22 09:39:14,387 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-11-22 09:39:14,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:14,391 INFO L225 Difference]: With dead ends: 179 [2019-11-22 09:39:14,392 INFO L226 Difference]: Without dead ends: 175 [2019-11-22 09:39:14,393 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-11-22 09:39:14,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-11-22 09:39:14,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-11-22 09:39:14,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-11-22 09:39:14,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 182 transitions. [2019-11-22 09:39:14,408 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 182 transitions. Word has length 38 [2019-11-22 09:39:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:14,410 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 182 transitions. [2019-11-22 09:39:14,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 09:39:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 182 transitions. [2019-11-22 09:39:14,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-22 09:39:14,417 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:14,418 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:39:14,621 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:14,622 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]=== [2019-11-22 09:39:14,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:14,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1347385061, now seen corresponding path program 1 times [2019-11-22 09:39:14,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:14,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [677032241] [2019-11-22 09:39:14,624 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 [2019-11-22 09:39:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:14,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-22 09:39:14,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:14,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:14,968 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:15,029 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [677032241] [2019-11-22 09:39:15,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:15,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-22 09:39:15,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361563811] [2019-11-22 09:39:15,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 09:39:15,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:15,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 09:39:15,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:39:15,031 INFO L87 Difference]: Start difference. First operand 175 states and 182 transitions. Second operand 7 states. [2019-11-22 09:39:15,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:15,075 INFO L93 Difference]: Finished difference Result 184 states and 191 transitions. [2019-11-22 09:39:15,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-22 09:39:15,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-22 09:39:15,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:15,079 INFO L225 Difference]: With dead ends: 184 [2019-11-22 09:39:15,080 INFO L226 Difference]: Without dead ends: 184 [2019-11-22 09:39:15,080 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-22 09:39:15,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-11-22 09:39:15,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 180. [2019-11-22 09:39:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-11-22 09:39:15,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 187 transitions. [2019-11-22 09:39:15,092 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 187 transitions. Word has length 40 [2019-11-22 09:39:15,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:15,092 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 187 transitions. [2019-11-22 09:39:15,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 09:39:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 187 transitions. [2019-11-22 09:39:15,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-22 09:39:15,093 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:15,093 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, 1, 1, 1, 1, 1, 1] [2019-11-22 09:39:15,294 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:15,295 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]=== [2019-11-22 09:39:15,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:15,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1156201438, now seen corresponding path program 1 times [2019-11-22 09:39:15,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:15,296 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1829369065] [2019-11-22 09:39:15,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-22 09:39:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:15,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-22 09:39:15,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:15,550 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:15,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:15,684 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1829369065] [2019-11-22 09:39:15,684 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:15,684 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 09:39:15,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443823794] [2019-11-22 09:39:15,684 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 09:39:15,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:15,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 09:39:15,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:39:15,685 INFO L87 Difference]: Start difference. First operand 180 states and 187 transitions. Second operand 3 states. [2019-11-22 09:39:15,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:15,878 INFO L93 Difference]: Finished difference Result 191 states and 197 transitions. [2019-11-22 09:39:15,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 09:39:15,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-11-22 09:39:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:15,882 INFO L225 Difference]: With dead ends: 191 [2019-11-22 09:39:15,882 INFO L226 Difference]: Without dead ends: 165 [2019-11-22 09:39:15,882 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:39:15,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-11-22 09:39:15,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 157. [2019-11-22 09:39:15,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-22 09:39:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 163 transitions. [2019-11-22 09:39:15,888 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 163 transitions. Word has length 38 [2019-11-22 09:39:15,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:15,889 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 163 transitions. [2019-11-22 09:39:15,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 09:39:15,889 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 163 transitions. [2019-11-22 09:39:15,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-22 09:39:15,890 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:15,890 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] [2019-11-22 09:39:16,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:16,094 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]=== [2019-11-22 09:39:16,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:16,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1528032860, now seen corresponding path program 2 times [2019-11-22 09:39:16,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:16,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [168269614] [2019-11-22 09:39:16,096 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 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 [2019-11-22 09:39:16,414 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 09:39:16,414 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:39:16,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-22 09:39:16,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:16,432 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 [2019-11-22 09:39:16,432 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:16,438 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:16,439 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:16,439 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:39:16,691 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-22 09:39:16,692 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:17,517 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-22 09:39:17,518 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [168269614] [2019-11-22 09:39:17,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:17,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-22 09:39:17,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550734614] [2019-11-22 09:39:17,519 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-22 09:39:17,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:17,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-22 09:39:17,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-22 09:39:17,519 INFO L87 Difference]: Start difference. First operand 157 states and 163 transitions. Second operand 23 states. [2019-11-22 09:39:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:20,462 INFO L93 Difference]: Finished difference Result 156 states and 162 transitions. [2019-11-22 09:39:20,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 09:39:20,464 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-11-22 09:39:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:20,465 INFO L225 Difference]: With dead ends: 156 [2019-11-22 09:39:20,465 INFO L226 Difference]: Without dead ends: 156 [2019-11-22 09:39:20,466 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-22 09:39:20,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-11-22 09:39:20,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2019-11-22 09:39:20,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-22 09:39:20,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2019-11-22 09:39:20,471 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 46 [2019-11-22 09:39:20,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:20,472 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2019-11-22 09:39:20,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-22 09:39:20,472 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2019-11-22 09:39:20,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-22 09:39:20,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:20,473 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] [2019-11-22 09:39:20,676 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:20,676 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]=== [2019-11-22 09:39:20,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:20,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1472640772, now seen corresponding path program 1 times [2019-11-22 09:39:20,677 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:20,677 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1788110298] [2019-11-22 09:39:20,677 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-22 09:39:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:21,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-22 09:39:21,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:21,236 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:21,237 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:21,355 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-22 09:39:22,349 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:39:22,349 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1788110298] [2019-11-22 09:39:22,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:39:22,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-11-22 09:39:22,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376713067] [2019-11-22 09:39:22,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-22 09:39:22,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:22,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-22 09:39:22,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=802, Unknown=0, NotChecked=0, Total=1122 [2019-11-22 09:39:22,351 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand 34 states. [2019-11-22 09:39:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:26,317 INFO L93 Difference]: Finished difference Result 174 states and 192 transitions. [2019-11-22 09:39:26,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-22 09:39:26,318 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-11-22 09:39:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:26,319 INFO L225 Difference]: With dead ends: 174 [2019-11-22 09:39:26,319 INFO L226 Difference]: Without dead ends: 170 [2019-11-22 09:39:26,320 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=736, Invalid=1426, Unknown=0, NotChecked=0, Total=2162 [2019-11-22 09:39:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2019-11-22 09:39:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2019-11-22 09:39:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-11-22 09:39:26,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 176 transitions. [2019-11-22 09:39:26,326 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 176 transitions. Word has length 51 [2019-11-22 09:39:26,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:26,326 INFO L462 AbstractCegarLoop]: Abstraction has 170 states and 176 transitions. [2019-11-22 09:39:26,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-22 09:39:26,326 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 176 transitions. [2019-11-22 09:39:26,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-22 09:39:26,327 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:26,327 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] [2019-11-22 09:39:26,537 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:26,538 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]=== [2019-11-22 09:39:26,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:26,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1233462108, now seen corresponding path program 2 times [2019-11-22 09:39:26,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:26,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1889879962] [2019-11-22 09:39:26,540 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 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 [2019-11-22 09:39:26,866 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 09:39:26,867 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:39:26,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 09:39:26,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:26,880 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 [2019-11-22 09:39:26,881 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:26,882 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:26,883 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:26,883 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:39:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:27,076 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:27,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1889879962] [2019-11-22 09:39:27,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:27,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-22 09:39:27,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208169970] [2019-11-22 09:39:27,164 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-22 09:39:27,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:27,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-22 09:39:27,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:39:27,164 INFO L87 Difference]: Start difference. First operand 170 states and 176 transitions. Second operand 13 states. [2019-11-22 09:39:28,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:28,220 INFO L93 Difference]: Finished difference Result 180 states and 185 transitions. [2019-11-22 09:39:28,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 09:39:28,221 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2019-11-22 09:39:28,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:28,222 INFO L225 Difference]: With dead ends: 180 [2019-11-22 09:39:28,223 INFO L226 Difference]: Without dead ends: 180 [2019-11-22 09:39:28,223 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 [2019-11-22 09:39:28,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-11-22 09:39:28,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 168. [2019-11-22 09:39:28,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-22 09:39:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2019-11-22 09:39:28,229 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 65 [2019-11-22 09:39:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:28,229 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2019-11-22 09:39:28,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-22 09:39:28,229 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2019-11-22 09:39:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-22 09:39:28,230 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:28,230 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] [2019-11-22 09:39:28,435 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:28,436 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]=== [2019-11-22 09:39:28,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:28,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1233462107, now seen corresponding path program 1 times [2019-11-22 09:39:28,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:28,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1445125336] [2019-11-22 09:39:28,438 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 [2019-11-22 09:39:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:29,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-22 09:39:29,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:29,069 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 [2019-11-22 09:39:29,069 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:29,075 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:29,076 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:29,076 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:39:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:29,353 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:30,229 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:30,230 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1445125336] [2019-11-22 09:39:30,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:30,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-22 09:39:30,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007468126] [2019-11-22 09:39:30,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-22 09:39:30,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:30,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-22 09:39:30,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-22 09:39:30,232 INFO L87 Difference]: Start difference. First operand 168 states and 174 transitions. Second operand 23 states. [2019-11-22 09:39:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:32,791 INFO L93 Difference]: Finished difference Result 166 states and 172 transitions. [2019-11-22 09:39:32,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-22 09:39:32,793 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2019-11-22 09:39:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:32,795 INFO L225 Difference]: With dead ends: 166 [2019-11-22 09:39:32,797 INFO L226 Difference]: Without dead ends: 166 [2019-11-22 09:39:32,797 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-22 09:39:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-22 09:39:32,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2019-11-22 09:39:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2019-11-22 09:39:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 172 transitions. [2019-11-22 09:39:32,810 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 172 transitions. Word has length 65 [2019-11-22 09:39:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:32,810 INFO L462 AbstractCegarLoop]: Abstraction has 166 states and 172 transitions. [2019-11-22 09:39:32,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-22 09:39:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 172 transitions. [2019-11-22 09:39:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-22 09:39:32,812 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:32,812 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] [2019-11-22 09:39:33,012 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:33,013 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]=== [2019-11-22 09:39:33,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:33,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1815391491, now seen corresponding path program 1 times [2019-11-22 09:39:33,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:33,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [120702166] [2019-11-22 09:39:33,015 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 [2019-11-22 09:39:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:33,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 09:39:33,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:33,446 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:33,446 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:33,625 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [120702166] [2019-11-22 09:39:33,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:33,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-22 09:39:33,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986336815] [2019-11-22 09:39:33,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 09:39:33,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:33,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 09:39:33,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-22 09:39:33,626 INFO L87 Difference]: Start difference. First operand 166 states and 172 transitions. Second operand 8 states. [2019-11-22 09:39:33,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:33,685 INFO L93 Difference]: Finished difference Result 168 states and 173 transitions. [2019-11-22 09:39:33,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-22 09:39:33,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2019-11-22 09:39:33,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:33,686 INFO L225 Difference]: With dead ends: 168 [2019-11-22 09:39:33,686 INFO L226 Difference]: Without dead ends: 166 [2019-11-22 09:39:33,687 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-22 09:39:33,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-22 09:39:33,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2019-11-22 09:39:33,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2019-11-22 09:39:33,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 171 transitions. [2019-11-22 09:39:33,692 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 171 transitions. Word has length 70 [2019-11-22 09:39:33,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:33,693 INFO L462 AbstractCegarLoop]: Abstraction has 166 states and 171 transitions. [2019-11-22 09:39:33,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 09:39:33,693 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 171 transitions. [2019-11-22 09:39:33,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-22 09:39:33,694 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:33,694 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] [2019-11-22 09:39:33,897 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:33,898 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]=== [2019-11-22 09:39:33,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:33,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1723917816, now seen corresponding path program 1 times [2019-11-22 09:39:33,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:33,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [734411193] [2019-11-22 09:39:33,900 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 [2019-11-22 09:39:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:34,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-22 09:39:34,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:34,296 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:34,296 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:34,478 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:39:34,534 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:34,534 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [734411193] [2019-11-22 09:39:34,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:34,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-11-22 09:39:34,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473447946] [2019-11-22 09:39:34,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-22 09:39:34,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:34,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-22 09:39:34,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-22 09:39:34,536 INFO L87 Difference]: Start difference. First operand 166 states and 171 transitions. Second operand 11 states. [2019-11-22 09:39:34,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:34,651 INFO L93 Difference]: Finished difference Result 170 states and 174 transitions. [2019-11-22 09:39:34,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 09:39:34,656 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2019-11-22 09:39:34,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:34,657 INFO L225 Difference]: With dead ends: 170 [2019-11-22 09:39:34,657 INFO L226 Difference]: Without dead ends: 166 [2019-11-22 09:39:34,658 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:39:34,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2019-11-22 09:39:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2019-11-22 09:39:34,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2019-11-22 09:39:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 170 transitions. [2019-11-22 09:39:34,667 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 170 transitions. Word has length 75 [2019-11-22 09:39:34,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:34,668 INFO L462 AbstractCegarLoop]: Abstraction has 166 states and 170 transitions. [2019-11-22 09:39:34,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-22 09:39:34,669 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 170 transitions. [2019-11-22 09:39:34,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-11-22 09:39:34,670 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:34,670 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] [2019-11-22 09:39:34,870 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:34,871 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]=== [2019-11-22 09:39:34,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:34,871 INFO L82 PathProgramCache]: Analyzing trace with hash -108025009, now seen corresponding path program 1 times [2019-11-22 09:39:34,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:34,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1122190327] [2019-11-22 09:39:34,873 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 [2019-11-22 09:39:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:35,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-22 09:39:35,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:35,438 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 [2019-11-22 09:39:35,439 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:35,441 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:35,441 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:35,441 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:39:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:35,894 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:36,288 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:36,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1122190327] [2019-11-22 09:39:36,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:36,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 14] imperfect sequences [] total 19 [2019-11-22 09:39:36,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888855619] [2019-11-22 09:39:36,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-22 09:39:36,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:36,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-22 09:39:36,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2019-11-22 09:39:36,290 INFO L87 Difference]: Start difference. First operand 166 states and 170 transitions. Second operand 20 states. [2019-11-22 09:39:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:38,446 INFO L93 Difference]: Finished difference Result 176 states and 179 transitions. [2019-11-22 09:39:38,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-22 09:39:38,447 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 86 [2019-11-22 09:39:38,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:38,448 INFO L225 Difference]: With dead ends: 176 [2019-11-22 09:39:38,448 INFO L226 Difference]: Without dead ends: 176 [2019-11-22 09:39:38,449 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 149 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2019-11-22 09:39:38,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-11-22 09:39:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 164. [2019-11-22 09:39:38,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-11-22 09:39:38,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 168 transitions. [2019-11-22 09:39:38,458 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 168 transitions. Word has length 86 [2019-11-22 09:39:38,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:38,459 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 168 transitions. [2019-11-22 09:39:38,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-22 09:39:38,461 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 168 transitions. [2019-11-22 09:39:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-11-22 09:39:38,462 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:38,462 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] [2019-11-22 09:39:38,663 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:38,663 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]=== [2019-11-22 09:39:38,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:38,664 INFO L82 PathProgramCache]: Analyzing trace with hash -108025008, now seen corresponding path program 1 times [2019-11-22 09:39:38,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:38,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1498838519] [2019-11-22 09:39:38,665 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 [2019-11-22 09:39:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:39,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-22 09:39:39,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:39,357 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 [2019-11-22 09:39:39,357 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:39,363 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:39,363 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:39,364 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:39:39,870 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:39,870 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:41,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1498838519] [2019-11-22 09:39:41,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:41,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 16] imperfect sequences [] total 34 [2019-11-22 09:39:41,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817492791] [2019-11-22 09:39:41,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-22 09:39:41,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:41,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-22 09:39:41,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2019-11-22 09:39:41,918 INFO L87 Difference]: Start difference. First operand 164 states and 168 transitions. Second operand 35 states. [2019-11-22 09:39:46,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:46,362 INFO L93 Difference]: Finished difference Result 162 states and 166 transitions. [2019-11-22 09:39:46,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-22 09:39:46,363 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 86 [2019-11-22 09:39:46,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:46,365 INFO L225 Difference]: With dead ends: 162 [2019-11-22 09:39:46,365 INFO L226 Difference]: Without dead ends: 162 [2019-11-22 09:39:46,366 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 134 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=138, Invalid=1502, Unknown=0, NotChecked=0, Total=1640 [2019-11-22 09:39:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-22 09:39:46,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-11-22 09:39:46,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-22 09:39:46,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 166 transitions. [2019-11-22 09:39:46,372 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 166 transitions. Word has length 86 [2019-11-22 09:39:46,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:46,373 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 166 transitions. [2019-11-22 09:39:46,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-22 09:39:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 166 transitions. [2019-11-22 09:39:46,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-11-22 09:39:46,375 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:46,375 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] [2019-11-22 09:39:46,580 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:46,581 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]=== [2019-11-22 09:39:46,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:46,582 INFO L82 PathProgramCache]: Analyzing trace with hash -971889003, now seen corresponding path program 1 times [2019-11-22 09:39:46,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:46,583 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [899064941] [2019-11-22 09:39:46,583 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 [2019-11-22 09:39:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:46,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-22 09:39:46,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:47,064 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:47,064 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:47,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:39:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:47,311 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [899064941] [2019-11-22 09:39:47,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:47,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2019-11-22 09:39:47,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276455718] [2019-11-22 09:39:47,312 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-22 09:39:47,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:47,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-22 09:39:47,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-22 09:39:47,313 INFO L87 Difference]: Start difference. First operand 162 states and 166 transitions. Second operand 14 states. [2019-11-22 09:39:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:47,453 INFO L93 Difference]: Finished difference Result 168 states and 171 transitions. [2019-11-22 09:39:47,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 09:39:47,454 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 97 [2019-11-22 09:39:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:47,456 INFO L225 Difference]: With dead ends: 168 [2019-11-22 09:39:47,456 INFO L226 Difference]: Without dead ends: 162 [2019-11-22 09:39:47,456 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-22 09:39:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-22 09:39:47,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2019-11-22 09:39:47,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2019-11-22 09:39:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 165 transitions. [2019-11-22 09:39:47,461 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 165 transitions. Word has length 97 [2019-11-22 09:39:47,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:47,461 INFO L462 AbstractCegarLoop]: Abstraction has 162 states and 165 transitions. [2019-11-22 09:39:47,461 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-22 09:39:47,461 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 165 transitions. [2019-11-22 09:39:47,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-11-22 09:39:47,462 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:47,462 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, 1, 1, 1] [2019-11-22 09:39:47,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:47,667 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]=== [2019-11-22 09:39:47,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:47,667 INFO L82 PathProgramCache]: Analyzing trace with hash -171278566, now seen corresponding path program 1 times [2019-11-22 09:39:47,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:47,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1351112767] [2019-11-22 09:39:47,669 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 [2019-11-22 09:39:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:48,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-22 09:39:48,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:48,330 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 [2019-11-22 09:39:48,331 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:48,332 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:48,333 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:48,333 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:39:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:48,705 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:49,175 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:49,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1351112767] [2019-11-22 09:39:49,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:49,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 14] imperfect sequences [] total 19 [2019-11-22 09:39:49,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298777348] [2019-11-22 09:39:49,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-22 09:39:49,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:49,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-22 09:39:49,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2019-11-22 09:39:49,178 INFO L87 Difference]: Start difference. First operand 162 states and 165 transitions. Second operand 20 states. [2019-11-22 09:39:51,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:51,014 INFO L93 Difference]: Finished difference Result 176 states and 178 transitions. [2019-11-22 09:39:51,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 09:39:51,014 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 110 [2019-11-22 09:39:51,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:51,016 INFO L225 Difference]: With dead ends: 176 [2019-11-22 09:39:51,016 INFO L226 Difference]: Without dead ends: 176 [2019-11-22 09:39:51,017 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 195 SyntacticMatches, 6 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2019-11-22 09:39:51,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2019-11-22 09:39:51,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 160. [2019-11-22 09:39:51,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-22 09:39:51,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 163 transitions. [2019-11-22 09:39:51,021 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 163 transitions. Word has length 110 [2019-11-22 09:39:51,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:51,022 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 163 transitions. [2019-11-22 09:39:51,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-22 09:39:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 163 transitions. [2019-11-22 09:39:51,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-11-22 09:39:51,023 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:51,023 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, 1, 1, 1] [2019-11-22 09:39:51,228 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:51,229 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]=== [2019-11-22 09:39:51,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:51,229 INFO L82 PathProgramCache]: Analyzing trace with hash -171278565, now seen corresponding path program 1 times [2019-11-22 09:39:51,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:51,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [831312760] [2019-11-22 09:39:51,230 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 [2019-11-22 09:39:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:52,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-22 09:39:52,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:39:52,045 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 [2019-11-22 09:39:52,046 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:39:52,053 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:39:52,053 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:39:52,054 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:39:52,840 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:52,840 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:39:54,891 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:39:54,891 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [831312760] [2019-11-22 09:39:54,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:39:54,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 16] imperfect sequences [] total 34 [2019-11-22 09:39:54,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056388404] [2019-11-22 09:39:54,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-22 09:39:54,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:39:54,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-22 09:39:54,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2019-11-22 09:39:54,893 INFO L87 Difference]: Start difference. First operand 160 states and 163 transitions. Second operand 35 states. [2019-11-22 09:39:59,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:39:59,367 INFO L93 Difference]: Finished difference Result 158 states and 161 transitions. [2019-11-22 09:39:59,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-22 09:39:59,370 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 110 [2019-11-22 09:39:59,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:39:59,371 INFO L225 Difference]: With dead ends: 158 [2019-11-22 09:39:59,371 INFO L226 Difference]: Without dead ends: 158 [2019-11-22 09:39:59,372 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 180 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=138, Invalid=1502, Unknown=0, NotChecked=0, Total=1640 [2019-11-22 09:39:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-22 09:39:59,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-11-22 09:39:59,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-22 09:39:59,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 161 transitions. [2019-11-22 09:39:59,376 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 161 transitions. Word has length 110 [2019-11-22 09:39:59,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:39:59,377 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 161 transitions. [2019-11-22 09:39:59,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-22 09:39:59,377 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 161 transitions. [2019-11-22 09:39:59,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-11-22 09:39:59,378 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:39:59,378 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, 1] [2019-11-22 09:39:59,578 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:39:59,579 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]=== [2019-11-22 09:39:59,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:39:59,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1622103447, now seen corresponding path program 1 times [2019-11-22 09:39:59,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:39:59,581 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1775520946] [2019-11-22 09:39:59,581 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 [2019-11-22 09:39:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:39:59,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-22 09:39:59,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:40:00,083 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:40:00,083 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:40:00,491 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:40:00,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1775520946] [2019-11-22 09:40:00,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:40:00,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 11 [2019-11-22 09:40:00,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541739033] [2019-11-22 09:40:00,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-22 09:40:00,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:40:00,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-22 09:40:00,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-11-22 09:40:00,494 INFO L87 Difference]: Start difference. First operand 158 states and 161 transitions. Second operand 11 states. [2019-11-22 09:40:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:40:00,625 INFO L93 Difference]: Finished difference Result 160 states and 162 transitions. [2019-11-22 09:40:00,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-22 09:40:00,625 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 108 [2019-11-22 09:40:00,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:40:00,627 INFO L225 Difference]: With dead ends: 160 [2019-11-22 09:40:00,627 INFO L226 Difference]: Without dead ends: 158 [2019-11-22 09:40:00,628 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2019-11-22 09:40:00,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-11-22 09:40:00,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-11-22 09:40:00,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-11-22 09:40:00,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 160 transitions. [2019-11-22 09:40:00,633 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 160 transitions. Word has length 108 [2019-11-22 09:40:00,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:40:00,634 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 160 transitions. [2019-11-22 09:40:00,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-22 09:40:00,634 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 160 transitions. [2019-11-22 09:40:00,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-11-22 09:40:00,635 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:40:00,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:40:00,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:40:00,850 INFO L410 AbstractCegarLoop]: === Iteration 24 === [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]=== [2019-11-22 09:40:00,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:40:00,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1464574625, now seen corresponding path program 1 times [2019-11-22 09:40:00,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:40:00,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1549701533] [2019-11-22 09:40:00,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:40:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:40:01,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 42 conjunts are in the unsatisfiable core [2019-11-22 09:40:01,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:40:01,530 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 [2019-11-22 09:40:01,531 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:40:01,532 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:40:01,533 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:40:01,533 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:40:02,287 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:40:02,287 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:40:02,761 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:40:02,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1549701533] [2019-11-22 09:40:02,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:40:02,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 18] imperfect sequences [] total 23 [2019-11-22 09:40:02,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006317871] [2019-11-22 09:40:02,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-22 09:40:02,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:40:02,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-22 09:40:02,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2019-11-22 09:40:02,763 INFO L87 Difference]: Start difference. First operand 158 states and 160 transitions. Second operand 24 states. [2019-11-22 09:40:04,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:40:04,905 INFO L93 Difference]: Finished difference Result 168 states and 169 transitions. [2019-11-22 09:40:04,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-22 09:40:04,905 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 123 [2019-11-22 09:40:04,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:40:04,907 INFO L225 Difference]: With dead ends: 168 [2019-11-22 09:40:04,907 INFO L226 Difference]: Without dead ends: 168 [2019-11-22 09:40:04,908 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 213 SyntacticMatches, 10 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=101, Invalid=829, Unknown=0, NotChecked=0, Total=930 [2019-11-22 09:40:04,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-11-22 09:40:04,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 156. [2019-11-22 09:40:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-22 09:40:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 158 transitions. [2019-11-22 09:40:04,913 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 158 transitions. Word has length 123 [2019-11-22 09:40:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:40:04,913 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 158 transitions. [2019-11-22 09:40:04,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-22 09:40:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 158 transitions. [2019-11-22 09:40:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-11-22 09:40:04,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:40:04,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:40:05,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:40:05,121 INFO L410 AbstractCegarLoop]: === Iteration 25 === [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]=== [2019-11-22 09:40:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:40:05,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1464574626, now seen corresponding path program 1 times [2019-11-22 09:40:05,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:40:05,123 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [325194606] [2019-11-22 09:40:05,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:40:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:40:06,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 52 conjunts are in the unsatisfiable core [2019-11-22 09:40:06,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:40:06,095 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 [2019-11-22 09:40:06,095 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:40:06,099 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:40:06,100 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:40:06,100 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:40:07,055 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:40:07,057 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:40:09,718 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:40:09,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [325194606] [2019-11-22 09:40:09,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:40:09,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23, 20] imperfect sequences [] total 42 [2019-11-22 09:40:09,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517255689] [2019-11-22 09:40:09,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-11-22 09:40:09,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:40:09,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-11-22 09:40:09,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1685, Unknown=0, NotChecked=0, Total=1806 [2019-11-22 09:40:09,721 INFO L87 Difference]: Start difference. First operand 156 states and 158 transitions. Second operand 43 states. [2019-11-22 09:40:15,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:40:15,224 INFO L93 Difference]: Finished difference Result 154 states and 156 transitions. [2019-11-22 09:40:15,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-22 09:40:15,226 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 123 [2019-11-22 09:40:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:40:15,227 INFO L225 Difference]: With dead ends: 154 [2019-11-22 09:40:15,227 INFO L226 Difference]: Without dead ends: 154 [2019-11-22 09:40:15,228 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 196 SyntacticMatches, 8 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=176, Invalid=2374, Unknown=0, NotChecked=0, Total=2550 [2019-11-22 09:40:15,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-22 09:40:15,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-22 09:40:15,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-22 09:40:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 156 transitions. [2019-11-22 09:40:15,232 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 156 transitions. Word has length 123 [2019-11-22 09:40:15,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:40:15,232 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 156 transitions. [2019-11-22 09:40:15,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-11-22 09:40:15,232 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 156 transitions. [2019-11-22 09:40:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-11-22 09:40:15,233 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:40:15,233 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:40:15,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:40:15,441 INFO L410 AbstractCegarLoop]: === Iteration 26 === [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]=== [2019-11-22 09:40:15,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:40:15,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1429839508, now seen corresponding path program 1 times [2019-11-22 09:40:15,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:40:15,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [7694737] [2019-11-22 09:40:15,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:40:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:40:15,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-22 09:40:15,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:40:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:40:16,734 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:40:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-22 09:40:16,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [7694737] [2019-11-22 09:40:16,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:40:16,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20, 19] imperfect sequences [] total 20 [2019-11-22 09:40:16,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149425260] [2019-11-22 09:40:16,905 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-22 09:40:16,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:40:16,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-22 09:40:16,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2019-11-22 09:40:16,906 INFO L87 Difference]: Start difference. First operand 154 states and 156 transitions. Second operand 21 states. [2019-11-22 09:40:18,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:40:18,794 INFO L93 Difference]: Finished difference Result 153 states and 155 transitions. [2019-11-22 09:40:18,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 09:40:18,795 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 126 [2019-11-22 09:40:18,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:40:18,796 INFO L225 Difference]: With dead ends: 153 [2019-11-22 09:40:18,796 INFO L226 Difference]: Without dead ends: 153 [2019-11-22 09:40:18,796 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 225 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2019-11-22 09:40:18,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-22 09:40:18,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-11-22 09:40:18,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-22 09:40:18,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 155 transitions. [2019-11-22 09:40:18,800 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 155 transitions. Word has length 126 [2019-11-22 09:40:18,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:40:18,801 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 155 transitions. [2019-11-22 09:40:18,801 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-22 09:40:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 155 transitions. [2019-11-22 09:40:18,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-11-22 09:40:18,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:40:18,802 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:40:19,012 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:40:19,012 INFO L410 AbstractCegarLoop]: === Iteration 27 === [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]=== [2019-11-22 09:40:19,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:40:19,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1137191653, now seen corresponding path program 1 times [2019-11-22 09:40:19,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:40:19,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1040402697] [2019-11-22 09:40:19,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:40:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:40:20,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 163 conjunts are in the unsatisfiable core [2019-11-22 09:40:20,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:40:20,055 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 [2019-11-22 09:40:20,055 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:40:20,063 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:40:20,063 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:40:20,064 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:16 [2019-11-22 09:40:20,128 INFO L343 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2019-11-22 09:40:20,128 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 [2019-11-22 09:40:20,129 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:40:20,144 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:40:20,144 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:40:20,144 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2019-11-22 09:40:20,228 INFO L343 Elim1Store]: treesize reduction 60, result has 22.1 percent of original size [2019-11-22 09:40:20,228 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 36 treesize of output 38 [2019-11-22 09:40:20,229 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:40:20,267 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:40:20,268 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:40:20,268 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:37 [2019-11-22 09:40:20,520 WARN L192 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2019-11-22 09:40:20,521 INFO L343 Elim1Store]: treesize reduction 32, result has 77.5 percent of original size [2019-11-22 09:40:20,522 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 48 treesize of output 137 [2019-11-22 09:40:20,523 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:40:20,636 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2019-11-22 09:40:20,637 INFO L567 ElimStorePlain]: treesize reduction 84, result has 35.9 percent of original size [2019-11-22 09:40:20,637 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:40:20,638 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:47 [2019-11-22 09:40:57,706 WARN L192 SmtUtils]: Spent 36.98 s on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-11-22 09:40:57,706 INFO L343 Elim1Store]: treesize reduction 65, result has 70.7 percent of original size [2019-11-22 09:40:57,707 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 60 treesize of output 189 [2019-11-22 09:40:57,708 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:40:59,839 WARN L192 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 41 DAG size of output: 29 [2019-11-22 09:40:59,839 INFO L567 ElimStorePlain]: treesize reduction 84, result has 41.3 percent of original size [2019-11-22 09:40:59,840 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:40:59,840 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:59 [2019-11-22 09:41:00,058 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 28 [2019-11-22 09:41:00,059 INFO L343 Elim1Store]: treesize reduction 246, result has 15.2 percent of original size [2019-11-22 09:41:00,059 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 [2019-11-22 09:41:00,060 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:41:00,100 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:41:00,101 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:41:00,101 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:74, output treesize:70 [2019-11-22 09:41:00,389 WARN L192 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 33 [2019-11-22 09:41:00,389 INFO L343 Elim1Store]: treesize reduction 332, result has 13.8 percent of original size [2019-11-22 09:41:00,389 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 80 treesize of output 94 [2019-11-22 09:41:00,390 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:41:00,436 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:41:00,436 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:41:00,436 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:85, output treesize:81 [2019-11-22 09:41:00,819 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 38 [2019-11-22 09:41:00,820 INFO L343 Elim1Store]: treesize reduction 430, result has 12.6 percent of original size [2019-11-22 09:41:00,820 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 91 treesize of output 108 [2019-11-22 09:41:00,821 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:41:00,880 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:41:00,880 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:41:00,881 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:96, output treesize:92 [2019-11-22 09:41:01,357 WARN L192 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 43 [2019-11-22 09:41:01,358 INFO L343 Elim1Store]: treesize reduction 540, result has 11.6 percent of original size [2019-11-22 09:41:01,358 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 102 treesize of output 122 [2019-11-22 09:41:01,359 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:41:01,431 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:41:01,432 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:41:01,432 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:107, output treesize:103 [2019-11-22 09:41:02,530 WARN L192 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 99 [2019-11-22 09:41:02,531 INFO L343 Elim1Store]: treesize reduction 416, result has 45.3 percent of original size [2019-11-22 09:41:02,532 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 45 case distinctions, treesize of input 114 treesize of output 401 [2019-11-22 09:41:02,534 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:41:02,889 WARN L192 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2019-11-22 09:41:02,889 INFO L567 ElimStorePlain]: treesize reduction 264, result has 30.0 percent of original size [2019-11-22 09:41:02,890 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:41:02,890 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:113 [2019-11-22 09:42:54,340 WARN L192 SmtUtils]: Spent 1.85 m on a formula simplification. DAG size of input: 289 DAG size of output: 140 [2019-11-22 09:42:54,341 INFO L343 Elim1Store]: treesize reduction 449, result has 51.1 percent of original size [2019-11-22 09:42:54,342 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 55 case distinctions, treesize of input 126 treesize of output 531 [2019-11-22 09:42:54,345 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:42:54,805 WARN L192 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 55 [2019-11-22 09:42:54,806 INFO L567 ElimStorePlain]: treesize reduction 460, result has 21.6 percent of original size [2019-11-22 09:42:54,806 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:42:54,806 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:131, output treesize:127 [2019-11-22 09:46:36,331 WARN L192 SmtUtils]: Spent 3.69 m on a formula simplification. DAG size of input: 339 DAG size of output: 181 [2019-11-22 09:46:36,332 INFO L343 Elim1Store]: treesize reduction 496, result has 54.5 percent of original size [2019-11-22 09:46:36,332 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 66 case distinctions, treesize of input 138 treesize of output 661 [2019-11-22 09:46:36,335 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:46:36,844 WARN L192 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 57 [2019-11-22 09:46:36,845 INFO L567 ElimStorePlain]: treesize reduction 460, result has 22.9 percent of original size [2019-11-22 09:46:36,845 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:46:36,845 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:141, output treesize:137 [2019-11-22 09:48:14,538 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-11-22 09:48:14,740 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:48:14,741 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:178) 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 [2019-11-22 09:48:14,747 INFO L168 Benchmark]: Toolchain (without parser) took 554079.04 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 526.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 349.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:48:14,747 INFO L168 Benchmark]: CDTParser took 1.37 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:48:14,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 903.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:48:14,748 INFO L168 Benchmark]: Boogie Preprocessor took 107.06 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-22 09:48:14,748 INFO L168 Benchmark]: RCFGBuilder took 1669.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.2 MB in the end (delta: 106.7 MB). Peak memory consumption was 106.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:48:14,748 INFO L168 Benchmark]: TraceAbstraction took 551393.73 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 378.0 MB). Free memory was 988.2 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 233.2 MB. Max. memory is 11.5 GB. [2019-11-22 09:48:14,751 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.37 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 903.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 107.06 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1669.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.2 MB in the end (delta: 106.7 MB). Peak memory consumption was 106.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 551393.73 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 378.0 MB). Free memory was 988.2 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 233.2 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...