./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.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 86e81ff2f197ef445354f5e78baab3ebc9b73948 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 11:41:08,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:41:08,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:41:08,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:41:08,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:41:08,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:41:08,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:41:08,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:41:08,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:41:08,622 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:41:08,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:41:08,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:41:08,625 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:41:08,626 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:41:08,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:41:08,628 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:41:08,629 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:41:08,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:41:08,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:41:08,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:41:08,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:41:08,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:41:08,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:41:08,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:41:08,640 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:41:08,640 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:41:08,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:41:08,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:41:08,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:41:08,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:41:08,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:41:08,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:41:08,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:41:08,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:41:08,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:41:08,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:41:08,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:41:08,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:41:08,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:41:08,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:41:08,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:41:08,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:41:08,664 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:41:08,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:41:08,668 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:41:08,668 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:41:08,668 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:41:08,668 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:41:08,669 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:41:08,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:41:08,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:41:08,669 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:41:08,670 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:41:08,673 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:41:08,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:41:08,673 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:41:08,674 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:41:08,674 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:41:08,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:41:08,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:41:08,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:41:08,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:41:08,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:41:08,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:41:08,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:41:08,675 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:41:08,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:41:08,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:41:08,676 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 -> 86e81ff2f197ef445354f5e78baab3ebc9b73948 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:41:08,971 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:41:08,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:41:08,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:41:08,989 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:41:08,989 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:41:08,990 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2019-11-21 11:41:09,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308d8455c/cbef6572f51e4c09b8064c3267206e88/FLAG15ece8fd9 [2019-11-21 11:41:09,659 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:41:09,660 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test22_3-1.i [2019-11-21 11:41:09,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308d8455c/cbef6572f51e4c09b8064c3267206e88/FLAG15ece8fd9 [2019-11-21 11:41:09,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/308d8455c/cbef6572f51e4c09b8064c3267206e88 [2019-11-21 11:41:09,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:41:09,963 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:41:09,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:41:09,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:41:09,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:41:09,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:41:09" (1/1) ... [2019-11-21 11:41:09,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4877c490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:09, skipping insertion in model container [2019-11-21 11:41:09,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:41:09" (1/1) ... [2019-11-21 11:41:09,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:41:10,049 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:41:10,606 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:41:10,606 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:41:10,607 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:41:10,631 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:41:10,631 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:41:10,631 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:41:10,636 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:41:10,636 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:41:10,636 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:41:10,640 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:41:10,641 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:41:10,641 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:41:10,675 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 11:41:10,675 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:41:10,675 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:41:10,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:41:10,725 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:41:10,747 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:41:10,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:41:10,825 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:41:10,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:41:10,988 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:41:10,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10 WrapperNode [2019-11-21 11:41:10,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:41:10,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:41:10,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:41:10,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:41:11,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (1/1) ... [2019-11-21 11:41:11,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (1/1) ... [2019-11-21 11:41:11,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (1/1) ... [2019-11-21 11:41:11,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (1/1) ... [2019-11-21 11:41:11,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (1/1) ... [2019-11-21 11:41:11,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (1/1) ... [2019-11-21 11:41:11,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (1/1) ... [2019-11-21 11:41:11,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:41:11,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:41:11,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:41:11,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:41:11,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:41:11,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:41:11,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:41:11,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:41:11,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:41:11,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:41:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:41:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:41:11,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:41:11,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:41:11,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:41:11,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:41:11,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:41:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:41:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:41:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:41:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:41:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:41:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:41:11,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:41:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:41:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:41:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:41:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:41:11,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:41:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:41:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:41:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:41:11,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:41:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:41:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:41:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:41:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:41:11,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:41:11,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:41:11,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:41:11,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:41:11,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:41:11,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:41:11,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:41:11,174 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:41:11,174 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:41:11,174 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_get [2019-11-21 11:41:11,174 INFO L138 BoogieDeclarations]: Found implementation of procedure f_22_put [2019-11-21 11:41:11,175 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:41:11,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:41:11,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:41:11,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:41:11,175 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:41:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:41:11,175 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:41:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:41:11,176 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:41:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:41:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:41:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:41:11,177 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:41:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:41:11,180 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:41:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:41:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:41:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:41:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:41:11,181 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:41:11,182 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:41:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:41:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:41:11,183 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:41:11,184 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:41:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:41:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:41:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:41:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:41:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:41:11,185 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:41:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:41:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:41:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:41:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:41:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:41:11,186 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:41:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:41:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:41:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:41:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:41:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:41:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:41:11,187 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:41:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:41:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:41:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:41:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:41:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:41:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:41:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:41:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:41:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:41:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:41:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:41:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:41:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:41:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:41:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:41:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:41:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:41:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:41:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:41:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:41:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:41:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:41:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:41:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:41:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:41:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:41:11,193 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:41:11,194 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:41:11,197 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:41:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:41:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:41:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:41:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:41:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:41:11,198 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:41:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:41:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:41:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:41:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:41:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:41:11,199 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:41:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:41:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:41:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:41:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:41:11,207 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:41:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:41:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:41:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:41:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:41:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:41:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:41:11,208 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:41:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:41:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:41:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:41:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:41:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:41:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:41:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:41:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:41:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:41:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:41:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:41:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:41:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:41:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:41:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:41:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:41:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:41:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:41:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:41:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:41:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:41:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:41:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:41:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:41:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:41:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:41:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:41:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:41:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:41:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:41:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:41:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:41:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:41:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:41:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:41:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:41:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:41:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:41:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:41:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:41:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:41:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:41:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:41:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:41:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:41:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:41:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:41:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:41:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:41:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:41:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:41:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:41:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:41:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:41:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:41:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:41:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:41:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:41:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:41:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:41:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:41:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:41:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:41:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_get [2019-11-21 11:41:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure f_22_put [2019-11-21 11:41:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:41:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:41:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:41:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:41:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:41:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:41:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:41:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:41:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:41:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:41:11,837 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:41:12,246 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:41:12,586 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:41:12,586 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 11:41:12,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:41:12 BoogieIcfgContainer [2019-11-21 11:41:12,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:41:12,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:41:12,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:41:12,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:41:12,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:41:09" (1/3) ... [2019-11-21 11:41:12,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87bc1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:41:12, skipping insertion in model container [2019-11-21 11:41:12,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:41:10" (2/3) ... [2019-11-21 11:41:12,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87bc1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:41:12, skipping insertion in model container [2019-11-21 11:41:12,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:41:12" (3/3) ... [2019-11-21 11:41:12,600 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test22_3-1.i [2019-11-21 11:41:12,610 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:41:12,620 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 71 error locations. [2019-11-21 11:41:12,630 INFO L249 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2019-11-21 11:41:12,647 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:41:12,647 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:41:12,647 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:41:12,648 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:41:12,648 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:41:12,648 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:41:12,648 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:41:12,648 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:41:12,668 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-11-21 11:41:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:41:12,678 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:12,679 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:12,680 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:12,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:12,685 INFO L82 PathProgramCache]: Analyzing trace with hash -543203063, now seen corresponding path program 1 times [2019-11-21 11:41:12,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:12,694 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [794105431] [2019-11-21 11:41:12,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:13,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:41:13,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:13,100 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:13,100 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:13,113 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:13,113 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:13,114 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:41:13,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:13,154 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:13,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:13,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [794105431] [2019-11-21 11:41:13,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:13,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:41:13,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687655444] [2019-11-21 11:41:13,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:41:13,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:13,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:41:13,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:41:13,272 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 5 states. [2019-11-21 11:41:13,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:13,611 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2019-11-21 11:41:13,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:41:13,613 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 11:41:13,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:13,628 INFO L225 Difference]: With dead ends: 165 [2019-11-21 11:41:13,628 INFO L226 Difference]: Without dead ends: 162 [2019-11-21 11:41:13,630 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:41:13,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-21 11:41:13,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2019-11-21 11:41:13,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-21 11:41:13,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 168 transitions. [2019-11-21 11:41:13,726 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 168 transitions. Word has length 17 [2019-11-21 11:41:13,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:13,727 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 168 transitions. [2019-11-21 11:41:13,727 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:41:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 168 transitions. [2019-11-21 11:41:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:41:13,729 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:13,729 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:13,932 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:13,933 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:13,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:13,934 INFO L82 PathProgramCache]: Analyzing trace with hash -543203062, now seen corresponding path program 1 times [2019-11-21 11:41:13,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:13,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [790132470] [2019-11-21 11:41:13,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:14,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 11:41:14,229 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:14,251 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:14,251 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:14,257 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:14,258 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:14,258 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:41:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:14,302 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:14,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:14,629 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [790132470] [2019-11-21 11:41:14,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:14,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-21 11:41:14,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557510673] [2019-11-21 11:41:14,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 11:41:14,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:14,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 11:41:14,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 11:41:14,633 INFO L87 Difference]: Start difference. First operand 156 states and 168 transitions. Second operand 10 states. [2019-11-21 11:41:15,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:15,415 INFO L93 Difference]: Finished difference Result 161 states and 173 transitions. [2019-11-21 11:41:15,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:41:15,417 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-21 11:41:15,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:15,420 INFO L225 Difference]: With dead ends: 161 [2019-11-21 11:41:15,420 INFO L226 Difference]: Without dead ends: 161 [2019-11-21 11:41:15,421 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-11-21 11:41:15,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-21 11:41:15,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 156. [2019-11-21 11:41:15,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-21 11:41:15,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 167 transitions. [2019-11-21 11:41:15,436 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 167 transitions. Word has length 17 [2019-11-21 11:41:15,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:15,436 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 167 transitions. [2019-11-21 11:41:15,436 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 11:41:15,436 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 167 transitions. [2019-11-21 11:41:15,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:41:15,437 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:15,437 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:15,641 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:15,642 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:15,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:15,642 INFO L82 PathProgramCache]: Analyzing trace with hash -514573912, now seen corresponding path program 1 times [2019-11-21 11:41:15,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:15,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [89275157] [2019-11-21 11:41:15,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:15,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:41:15,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:15,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:15,915 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:15,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [89275157] [2019-11-21 11:41:15,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:15,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:41:15,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472025607] [2019-11-21 11:41:15,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:41:15,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:15,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:41:15,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:41:15,953 INFO L87 Difference]: Start difference. First operand 156 states and 167 transitions. Second operand 5 states. [2019-11-21 11:41:15,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:15,983 INFO L93 Difference]: Finished difference Result 155 states and 164 transitions. [2019-11-21 11:41:15,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:41:15,985 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 11:41:15,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:15,987 INFO L225 Difference]: With dead ends: 155 [2019-11-21 11:41:15,987 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 11:41:15,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:41:15,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 11:41:15,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2019-11-21 11:41:15,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 11:41:15,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 162 transitions. [2019-11-21 11:41:15,999 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 162 transitions. Word has length 17 [2019-11-21 11:41:15,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:15,999 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 162 transitions. [2019-11-21 11:41:16,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:41:16,000 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 162 transitions. [2019-11-21 11:41:16,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 11:41:16,001 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:16,001 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] [2019-11-21 11:41:16,204 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:16,205 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:16,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:16,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1816165994, now seen corresponding path program 1 times [2019-11-21 11:41:16,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:16,207 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1461084974] [2019-11-21 11:41:16,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:16,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:41:16,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:16,449 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:16,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:16,559 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1461084974] [2019-11-21 11:41:16,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:16,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:41:16,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901373107] [2019-11-21 11:41:16,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:41:16,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:16,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:41:16,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:41:16,561 INFO L87 Difference]: Start difference. First operand 153 states and 162 transitions. Second operand 5 states. [2019-11-21 11:41:16,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:16,595 INFO L93 Difference]: Finished difference Result 155 states and 163 transitions. [2019-11-21 11:41:16,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:41:16,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2019-11-21 11:41:16,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:16,598 INFO L225 Difference]: With dead ends: 155 [2019-11-21 11:41:16,601 INFO L226 Difference]: Without dead ends: 155 [2019-11-21 11:41:16,602 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 [2019-11-21 11:41:16,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-11-21 11:41:16,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2019-11-21 11:41:16,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 11:41:16,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 161 transitions. [2019-11-21 11:41:16,625 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 161 transitions. Word has length 29 [2019-11-21 11:41:16,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:16,628 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 161 transitions. [2019-11-21 11:41:16,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:41:16,628 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 161 transitions. [2019-11-21 11:41:16,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 11:41:16,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:16,630 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:16,833 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:16,833 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:16,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:16,834 INFO L82 PathProgramCache]: Analyzing trace with hash 819093641, now seen corresponding path program 1 times [2019-11-21 11:41:16,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:16,834 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [153673316] [2019-11-21 11:41:16,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:17,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 11:41:17,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:17,205 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:17,246 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [153673316] [2019-11-21 11:41:17,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:17,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-11-21 11:41:17,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399671033] [2019-11-21 11:41:17,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:41:17,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:17,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:41:17,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:41:17,248 INFO L87 Difference]: Start difference. First operand 153 states and 161 transitions. Second operand 9 states. [2019-11-21 11:41:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:17,353 INFO L93 Difference]: Finished difference Result 174 states and 184 transitions. [2019-11-21 11:41:17,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:41:17,355 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-11-21 11:41:17,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:17,357 INFO L225 Difference]: With dead ends: 174 [2019-11-21 11:41:17,357 INFO L226 Difference]: Without dead ends: 174 [2019-11-21 11:41:17,357 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 [2019-11-21 11:41:17,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-11-21 11:41:17,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 167. [2019-11-21 11:41:17,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-21 11:41:17,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 175 transitions. [2019-11-21 11:41:17,367 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 175 transitions. Word has length 29 [2019-11-21 11:41:17,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:17,368 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 175 transitions. [2019-11-21 11:41:17,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:41:17,368 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 175 transitions. [2019-11-21 11:41:17,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-21 11:41:17,369 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:17,369 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:17,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:17,585 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:17,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1080067075, now seen corresponding path program 1 times [2019-11-21 11:41:17,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:17,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [874873720] [2019-11-21 11:41:17,588 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:17,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 11:41:17,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:17,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:17,877 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:17,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:17,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [874873720] [2019-11-21 11:41:17,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:17,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 11:41:17,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508773151] [2019-11-21 11:41:17,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:41:17,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:17,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:41:17,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:41:17,935 INFO L87 Difference]: Start difference. First operand 167 states and 175 transitions. Second operand 6 states. [2019-11-21 11:41:17,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:17,985 INFO L93 Difference]: Finished difference Result 173 states and 181 transitions. [2019-11-21 11:41:17,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:41:17,986 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-21 11:41:17,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:17,988 INFO L225 Difference]: With dead ends: 173 [2019-11-21 11:41:17,988 INFO L226 Difference]: Without dead ends: 169 [2019-11-21 11:41:17,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:41:17,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-11-21 11:41:17,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2019-11-21 11:41:17,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-21 11:41:17,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 177 transitions. [2019-11-21 11:41:17,997 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 177 transitions. Word has length 32 [2019-11-21 11:41:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:17,998 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 177 transitions. [2019-11-21 11:41:17,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:41:17,998 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 177 transitions. [2019-11-21 11:41:17,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 11:41:18,000 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:18,000 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:18,212 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:18,213 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:18,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:18,213 INFO L82 PathProgramCache]: Analyzing trace with hash -909692963, now seen corresponding path program 1 times [2019-11-21 11:41:18,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:18,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [857468231] [2019-11-21 11:41:18,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:18,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:41:18,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:18,533 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:18,657 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [857468231] [2019-11-21 11:41:18,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:41:18,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-21 11:41:18,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595821725] [2019-11-21 11:41:18,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 11:41:18,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:18,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 11:41:18,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-11-21 11:41:18,659 INFO L87 Difference]: Start difference. First operand 169 states and 177 transitions. Second operand 10 states. [2019-11-21 11:41:18,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:18,942 INFO L93 Difference]: Finished difference Result 177 states and 187 transitions. [2019-11-21 11:41:18,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:41:18,943 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2019-11-21 11:41:18,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:18,945 INFO L225 Difference]: With dead ends: 177 [2019-11-21 11:41:18,946 INFO L226 Difference]: Without dead ends: 173 [2019-11-21 11:41:18,946 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:41:18,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-21 11:41:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2019-11-21 11:41:18,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-21 11:41:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 181 transitions. [2019-11-21 11:41:18,955 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 181 transitions. Word has length 34 [2019-11-21 11:41:18,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:18,955 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 181 transitions. [2019-11-21 11:41:18,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 11:41:18,956 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 181 transitions. [2019-11-21 11:41:18,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 11:41:18,957 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:18,958 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:19,170 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:19,171 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:19,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:19,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1849438109, now seen corresponding path program 2 times [2019-11-21 11:41:19,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:19,173 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1287729129] [2019-11-21 11:41:19,173 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 [2019-11-21 11:41:19,478 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 11:41:19,479 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:41:19,480 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 11:41:19,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:19,496 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:19,497 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:19,505 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:19,506 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:19,506 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:41:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-21 11:41:19,679 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:19,765 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-11-21 11:41:19,766 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1287729129] [2019-11-21 11:41:19,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:19,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-21 11:41:19,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842959105] [2019-11-21 11:41:19,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 11:41:19,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:19,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 11:41:19,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:41:19,768 INFO L87 Difference]: Start difference. First operand 173 states and 181 transitions. Second operand 13 states. [2019-11-21 11:41:21,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:21,157 INFO L93 Difference]: Finished difference Result 198 states and 214 transitions. [2019-11-21 11:41:21,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 11:41:21,158 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2019-11-21 11:41:21,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:21,159 INFO L225 Difference]: With dead ends: 198 [2019-11-21 11:41:21,160 INFO L226 Difference]: Without dead ends: 198 [2019-11-21 11:41:21,160 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 [2019-11-21 11:41:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2019-11-21 11:41:21,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 172. [2019-11-21 11:41:21,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-11-21 11:41:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 180 transitions. [2019-11-21 11:41:21,168 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 180 transitions. Word has length 38 [2019-11-21 11:41:21,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:21,169 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 180 transitions. [2019-11-21 11:41:21,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 11:41:21,169 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 180 transitions. [2019-11-21 11:41:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 11:41:21,170 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:21,170 INFO L410 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:21,375 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:21,376 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:21,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:21,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1849438110, now seen corresponding path program 1 times [2019-11-21 11:41:21,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:21,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2141191731] [2019-11-21 11:41:21,378 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 [2019-11-21 11:41:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:21,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 11:41:21,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:21,778 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:22,097 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:22,098 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2141191731] [2019-11-21 11:41:22,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:41:22,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-11-21 11:41:22,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473737879] [2019-11-21 11:41:22,100 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 11:41:22,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:22,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 11:41:22,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-21 11:41:22,101 INFO L87 Difference]: Start difference. First operand 172 states and 180 transitions. Second operand 18 states. [2019-11-21 11:41:23,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:23,058 INFO L93 Difference]: Finished difference Result 184 states and 198 transitions. [2019-11-21 11:41:23,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-21 11:41:23,059 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 38 [2019-11-21 11:41:23,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:23,062 INFO L225 Difference]: With dead ends: 184 [2019-11-21 11:41:23,062 INFO L226 Difference]: Without dead ends: 180 [2019-11-21 11:41:23,063 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=223, Invalid=377, Unknown=0, NotChecked=0, Total=600 [2019-11-21 11:41:23,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-11-21 11:41:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2019-11-21 11:41:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-11-21 11:41:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 188 transitions. [2019-11-21 11:41:23,069 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 188 transitions. Word has length 38 [2019-11-21 11:41:23,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:23,070 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 188 transitions. [2019-11-21 11:41:23,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 11:41:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 188 transitions. [2019-11-21 11:41:23,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-11-21 11:41:23,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:23,071 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, 1, 1] [2019-11-21 11:41:23,274 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:23,275 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:23,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:23,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1796174276, now seen corresponding path program 1 times [2019-11-21 11:41:23,277 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:23,277 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1003282927] [2019-11-21 11:41:23,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:23,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 11:41:23,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:23,696 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:23,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:23,776 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1003282927] [2019-11-21 11:41:23,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:23,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2019-11-21 11:41:23,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182427178] [2019-11-21 11:41:23,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 11:41:23,777 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:23,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 11:41:23,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:41:23,779 INFO L87 Difference]: Start difference. First operand 180 states and 188 transitions. Second operand 9 states. [2019-11-21 11:41:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:23,872 INFO L93 Difference]: Finished difference Result 194 states and 204 transitions. [2019-11-21 11:41:23,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 11:41:23,873 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2019-11-21 11:41:23,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:23,874 INFO L225 Difference]: With dead ends: 194 [2019-11-21 11:41:23,875 INFO L226 Difference]: Without dead ends: 194 [2019-11-21 11:41:23,875 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-21 11:41:23,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-11-21 11:41:23,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 190. [2019-11-21 11:41:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-11-21 11:41:23,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 199 transitions. [2019-11-21 11:41:23,882 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 199 transitions. Word has length 42 [2019-11-21 11:41:23,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:23,883 INFO L462 AbstractCegarLoop]: Abstraction has 190 states and 199 transitions. [2019-11-21 11:41:23,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 11:41:23,883 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 199 transitions. [2019-11-21 11:41:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 11:41:23,884 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:23,884 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:24,094 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:24,094 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:24,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:24,094 INFO L82 PathProgramCache]: Analyzing trace with hash 453283614, now seen corresponding path program 2 times [2019-11-21 11:41:24,095 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:24,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1863322877] [2019-11-21 11:41:24,095 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:24,377 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 11:41:24,378 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:41:24,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 11:41:24,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:24,399 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:24,399 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:24,405 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:24,405 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:24,405 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:41:24,619 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-21 11:41:24,619 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-11-21 11:41:25,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1863322877] [2019-11-21 11:41:25,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:25,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-21 11:41:25,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542306080] [2019-11-21 11:41:25,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-21 11:41:25,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:25,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-21 11:41:25,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-21 11:41:25,486 INFO L87 Difference]: Start difference. First operand 190 states and 199 transitions. Second operand 23 states. [2019-11-21 11:41:28,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:28,386 INFO L93 Difference]: Finished difference Result 193 states and 201 transitions. [2019-11-21 11:41:28,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 11:41:28,388 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 46 [2019-11-21 11:41:28,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:28,389 INFO L225 Difference]: With dead ends: 193 [2019-11-21 11:41:28,389 INFO L226 Difference]: Without dead ends: 193 [2019-11-21 11:41:28,390 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-21 11:41:28,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-21 11:41:28,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 189. [2019-11-21 11:41:28,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-11-21 11:41:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 198 transitions. [2019-11-21 11:41:28,397 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 198 transitions. Word has length 46 [2019-11-21 11:41:28,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:28,397 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 198 transitions. [2019-11-21 11:41:28,397 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-21 11:41:28,397 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 198 transitions. [2019-11-21 11:41:28,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-21 11:41:28,398 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:28,398 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:28,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:28,611 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:28,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:28,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1225762158, now seen corresponding path program 1 times [2019-11-21 11:41:28,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:28,612 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1758637523] [2019-11-21 11:41:28,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:28,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 11:41:28,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 11:41:28,871 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 11:41:29,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1758637523] [2019-11-21 11:41:29,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:29,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 11:41:29,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663147412] [2019-11-21 11:41:29,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 11:41:29,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:29,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 11:41:29,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:41:29,108 INFO L87 Difference]: Start difference. First operand 189 states and 198 transitions. Second operand 3 states. [2019-11-21 11:41:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:29,296 INFO L93 Difference]: Finished difference Result 202 states and 211 transitions. [2019-11-21 11:41:29,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 11:41:29,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-11-21 11:41:29,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:29,299 INFO L225 Difference]: With dead ends: 202 [2019-11-21 11:41:29,299 INFO L226 Difference]: Without dead ends: 171 [2019-11-21 11:41:29,300 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:41:29,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-11-21 11:41:29,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 161. [2019-11-21 11:41:29,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-11-21 11:41:29,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 168 transitions. [2019-11-21 11:41:29,305 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 168 transitions. Word has length 47 [2019-11-21 11:41:29,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:29,305 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 168 transitions. [2019-11-21 11:41:29,305 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 11:41:29,306 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 168 transitions. [2019-11-21 11:41:29,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-21 11:41:29,306 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:29,306 INFO L410 BasicCegarLoop]: trace histogram [14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:29,509 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:29,510 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:29,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:29,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1594252556, now seen corresponding path program 1 times [2019-11-21 11:41:29,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:29,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1243350767] [2019-11-21 11:41:29,512 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 [2019-11-21 11:41:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:29,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-21 11:41:29,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:30,057 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:30,171 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 11:41:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:41:31,130 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1243350767] [2019-11-21 11:41:31,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:41:31,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2019-11-21 11:41:31,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547700781] [2019-11-21 11:41:31,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-21 11:41:31,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:31,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-21 11:41:31,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=802, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 11:41:31,133 INFO L87 Difference]: Start difference. First operand 161 states and 168 transitions. Second operand 34 states. [2019-11-21 11:41:34,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:34,988 INFO L93 Difference]: Finished difference Result 179 states and 198 transitions. [2019-11-21 11:41:34,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-11-21 11:41:34,989 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 51 [2019-11-21 11:41:34,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:34,990 INFO L225 Difference]: With dead ends: 179 [2019-11-21 11:41:34,990 INFO L226 Difference]: Without dead ends: 175 [2019-11-21 11:41:34,992 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=736, Invalid=1426, Unknown=0, NotChecked=0, Total=2162 [2019-11-21 11:41:34,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-11-21 11:41:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2019-11-21 11:41:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-11-21 11:41:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 182 transitions. [2019-11-21 11:41:34,997 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 182 transitions. Word has length 51 [2019-11-21 11:41:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:34,997 INFO L462 AbstractCegarLoop]: Abstraction has 175 states and 182 transitions. [2019-11-21 11:41:34,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-21 11:41:34,998 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 182 transitions. [2019-11-21 11:41:34,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 11:41:34,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:34,999 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:35,202 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:35,203 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:35,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:35,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1364904468, now seen corresponding path program 2 times [2019-11-21 11:41:35,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:35,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1503621216] [2019-11-21 11:41:35,205 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 [2019-11-21 11:41:35,518 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 11:41:35,518 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:41:35,520 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 11:41:35,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:35,526 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:35,527 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:35,528 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:35,528 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:35,528 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:41:35,697 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:35,698 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:35,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1503621216] [2019-11-21 11:41:35,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:35,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 9] imperfect sequences [] total 12 [2019-11-21 11:41:35,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121577803] [2019-11-21 11:41:35,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 11:41:35,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:35,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 11:41:35,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:41:35,776 INFO L87 Difference]: Start difference. First operand 175 states and 182 transitions. Second operand 13 states. [2019-11-21 11:41:36,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:36,914 INFO L93 Difference]: Finished difference Result 199 states and 214 transitions. [2019-11-21 11:41:36,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 11:41:36,915 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2019-11-21 11:41:36,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:36,916 INFO L225 Difference]: With dead ends: 199 [2019-11-21 11:41:36,916 INFO L226 Difference]: Without dead ends: 199 [2019-11-21 11:41:36,917 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 114 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-11-21 11:41:36,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2019-11-21 11:41:36,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 173. [2019-11-21 11:41:36,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-11-21 11:41:36,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 180 transitions. [2019-11-21 11:41:36,924 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 180 transitions. Word has length 65 [2019-11-21 11:41:36,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:36,924 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 180 transitions. [2019-11-21 11:41:36,924 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 11:41:36,924 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 180 transitions. [2019-11-21 11:41:36,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 11:41:36,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:36,925 INFO L410 BasicCegarLoop]: trace histogram [28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:41:37,128 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:37,129 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:37,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:37,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1364904467, now seen corresponding path program 1 times [2019-11-21 11:41:37,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:37,130 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [499865410] [2019-11-21 11:41:37,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:37,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 11:41:37,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:37,765 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:37,766 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:37,771 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:37,771 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:37,771 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:41:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:38,010 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:38,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [499865410] [2019-11-21 11:41:38,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:38,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 11] imperfect sequences [] total 22 [2019-11-21 11:41:38,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944901868] [2019-11-21 11:41:38,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-21 11:41:38,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:38,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-21 11:41:38,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2019-11-21 11:41:38,997 INFO L87 Difference]: Start difference. First operand 173 states and 180 transitions. Second operand 23 states. [2019-11-21 11:41:41,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:41,628 INFO L93 Difference]: Finished difference Result 171 states and 178 transitions. [2019-11-21 11:41:41,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 11:41:41,629 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 65 [2019-11-21 11:41:41,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:41,630 INFO L225 Difference]: With dead ends: 171 [2019-11-21 11:41:41,630 INFO L226 Difference]: Without dead ends: 171 [2019-11-21 11:41:41,631 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 104 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2019-11-21 11:41:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-11-21 11:41:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2019-11-21 11:41:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-21 11:41:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 178 transitions. [2019-11-21 11:41:41,636 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 178 transitions. Word has length 65 [2019-11-21 11:41:41,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:41,636 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 178 transitions. [2019-11-21 11:41:41,636 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-21 11:41:41,637 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 178 transitions. [2019-11-21 11:41:41,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-11-21 11:41:41,638 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:41,638 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] [2019-11-21 11:41:41,843 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:41,843 INFO L410 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:41,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:41,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1492142175, now seen corresponding path program 1 times [2019-11-21 11:41:41,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:41,844 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [616812593] [2019-11-21 11:41:41,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:42,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:41:42,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:42,206 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:42,206 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:42,355 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:42,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [616812593] [2019-11-21 11:41:42,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:42,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 8 [2019-11-21 11:41:42,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337538484] [2019-11-21 11:41:42,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 11:41:42,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:42,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 11:41:42,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-21 11:41:42,358 INFO L87 Difference]: Start difference. First operand 171 states and 178 transitions. Second operand 8 states. [2019-11-21 11:41:42,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:42,417 INFO L93 Difference]: Finished difference Result 173 states and 179 transitions. [2019-11-21 11:41:42,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 11:41:42,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 70 [2019-11-21 11:41:42,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:42,418 INFO L225 Difference]: With dead ends: 173 [2019-11-21 11:41:42,419 INFO L226 Difference]: Without dead ends: 171 [2019-11-21 11:41:42,419 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-21 11:41:42,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-11-21 11:41:42,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2019-11-21 11:41:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-21 11:41:42,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 177 transitions. [2019-11-21 11:41:42,425 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 177 transitions. Word has length 70 [2019-11-21 11:41:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:42,425 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 177 transitions. [2019-11-21 11:41:42,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 11:41:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 177 transitions. [2019-11-21 11:41:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-21 11:41:42,426 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:42,427 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] [2019-11-21 11:41:42,635 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:42,635 INFO L410 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:42,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1761038084, now seen corresponding path program 1 times [2019-11-21 11:41:42,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:42,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1400272193] [2019-11-21 11:41:42,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:42,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 11:41:42,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:43,053 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:43,053 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:43,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:41:43,271 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:43,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1400272193] [2019-11-21 11:41:43,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:43,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 11 [2019-11-21 11:41:43,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552213292] [2019-11-21 11:41:43,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 11:41:43,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:43,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 11:41:43,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-21 11:41:43,273 INFO L87 Difference]: Start difference. First operand 171 states and 177 transitions. Second operand 11 states. [2019-11-21 11:41:43,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:43,370 INFO L93 Difference]: Finished difference Result 175 states and 180 transitions. [2019-11-21 11:41:43,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-21 11:41:43,371 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2019-11-21 11:41:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:43,372 INFO L225 Difference]: With dead ends: 175 [2019-11-21 11:41:43,372 INFO L226 Difference]: Without dead ends: 171 [2019-11-21 11:41:43,372 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-21 11:41:43,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2019-11-21 11:41:43,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2019-11-21 11:41:43,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2019-11-21 11:41:43,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 176 transitions. [2019-11-21 11:41:43,377 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 176 transitions. Word has length 75 [2019-11-21 11:41:43,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:43,378 INFO L462 AbstractCegarLoop]: Abstraction has 171 states and 176 transitions. [2019-11-21 11:41:43,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 11:41:43,378 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 176 transitions. [2019-11-21 11:41:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-11-21 11:41:43,379 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:43,379 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] [2019-11-21 11:41:43,582 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:43,582 INFO L410 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:43,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:43,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1268812299, now seen corresponding path program 1 times [2019-11-21 11:41:43,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:43,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [296538394] [2019-11-21 11:41:43,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:44,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-21 11:41:44,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:44,127 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:44,128 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:44,134 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:44,134 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:44,135 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:41:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:44,608 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:45,007 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [296538394] [2019-11-21 11:41:45,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:45,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 14] imperfect sequences [] total 19 [2019-11-21 11:41:45,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698114227] [2019-11-21 11:41:45,008 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-21 11:41:45,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:45,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-21 11:41:45,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2019-11-21 11:41:45,009 INFO L87 Difference]: Start difference. First operand 171 states and 176 transitions. Second operand 20 states. [2019-11-21 11:41:47,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:47,628 INFO L93 Difference]: Finished difference Result 195 states and 208 transitions. [2019-11-21 11:41:47,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-21 11:41:47,629 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 86 [2019-11-21 11:41:47,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:47,631 INFO L225 Difference]: With dead ends: 195 [2019-11-21 11:41:47,632 INFO L226 Difference]: Without dead ends: 195 [2019-11-21 11:41:47,632 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 [2019-11-21 11:41:47,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-11-21 11:41:47,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 169. [2019-11-21 11:41:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2019-11-21 11:41:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 174 transitions. [2019-11-21 11:41:47,641 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 174 transitions. Word has length 86 [2019-11-21 11:41:47,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:47,642 INFO L462 AbstractCegarLoop]: Abstraction has 169 states and 174 transitions. [2019-11-21 11:41:47,642 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-21 11:41:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 174 transitions. [2019-11-21 11:41:47,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-11-21 11:41:47,647 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:47,647 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] [2019-11-21 11:41:47,848 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:47,848 INFO L410 AbstractCegarLoop]: === Iteration 19 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:47,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:47,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1268812298, now seen corresponding path program 1 times [2019-11-21 11:41:47,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:47,849 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1054657268] [2019-11-21 11:41:47,849 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:48,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 40 conjunts are in the unsatisfiable core [2019-11-21 11:41:48,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:48,570 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:48,570 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:48,578 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:48,579 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:48,579 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:41:49,039 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:49,039 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:51,143 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1054657268] [2019-11-21 11:41:51,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:51,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19, 16] imperfect sequences [] total 34 [2019-11-21 11:41:51,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005345159] [2019-11-21 11:41:51,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-11-21 11:41:51,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:51,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-11-21 11:41:51,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=1093, Unknown=0, NotChecked=0, Total=1190 [2019-11-21 11:41:51,151 INFO L87 Difference]: Start difference. First operand 169 states and 174 transitions. Second operand 35 states. [2019-11-21 11:41:55,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:55,915 INFO L93 Difference]: Finished difference Result 167 states and 172 transitions. [2019-11-21 11:41:55,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-21 11:41:55,916 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 86 [2019-11-21 11:41:55,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:55,917 INFO L225 Difference]: With dead ends: 167 [2019-11-21 11:41:55,917 INFO L226 Difference]: Without dead ends: 167 [2019-11-21 11:41:55,918 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 [2019-11-21 11:41:55,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-11-21 11:41:55,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-11-21 11:41:55,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-21 11:41:55,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 172 transitions. [2019-11-21 11:41:55,923 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 172 transitions. Word has length 86 [2019-11-21 11:41:55,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:55,923 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 172 transitions. [2019-11-21 11:41:55,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-11-21 11:41:55,924 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 172 transitions. [2019-11-21 11:41:55,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-11-21 11:41:55,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:55,925 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] [2019-11-21 11:41:56,130 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:56,131 INFO L410 AbstractCegarLoop]: === Iteration 20 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:56,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:56,132 INFO L82 PathProgramCache]: Analyzing trace with hash 2040440912, now seen corresponding path program 1 times [2019-11-21 11:41:56,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:56,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1052452176] [2019-11-21 11:41:56,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:56,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 11:41:56,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:56,606 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:56,606 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:56,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:41:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:56,864 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1052452176] [2019-11-21 11:41:56,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:56,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2019-11-21 11:41:56,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816655891] [2019-11-21 11:41:56,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 11:41:56,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:56,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 11:41:56,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-21 11:41:56,866 INFO L87 Difference]: Start difference. First operand 167 states and 172 transitions. Second operand 14 states. [2019-11-21 11:41:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:41:57,046 INFO L93 Difference]: Finished difference Result 173 states and 177 transitions. [2019-11-21 11:41:57,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 11:41:57,047 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 99 [2019-11-21 11:41:57,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:41:57,050 INFO L225 Difference]: With dead ends: 173 [2019-11-21 11:41:57,050 INFO L226 Difference]: Without dead ends: 167 [2019-11-21 11:41:57,050 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-21 11:41:57,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-11-21 11:41:57,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-11-21 11:41:57,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-11-21 11:41:57,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 171 transitions. [2019-11-21 11:41:57,055 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 171 transitions. Word has length 99 [2019-11-21 11:41:57,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:41:57,056 INFO L462 AbstractCegarLoop]: Abstraction has 167 states and 171 transitions. [2019-11-21 11:41:57,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 11:41:57,056 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 171 transitions. [2019-11-21 11:41:57,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-21 11:41:57,057 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:41:57,057 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] [2019-11-21 11:41:57,261 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:57,262 INFO L410 AbstractCegarLoop]: === Iteration 21 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:41:57,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:41:57,262 INFO L82 PathProgramCache]: Analyzing trace with hash -2133911659, now seen corresponding path program 1 times [2019-11-21 11:41:57,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:41:57,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2090790686] [2019-11-21 11:41:57,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:41:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:41:57,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-21 11:41:57,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:41:57,928 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:41:57,928 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:41:57,931 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:41:57,931 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:41:57,931 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:41:58,331 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:58,331 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:41:58,742 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:41:58,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2090790686] [2019-11-21 11:41:58,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:41:58,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 16] imperfect sequences [] total 21 [2019-11-21 11:41:58,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502691022] [2019-11-21 11:41:58,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 11:41:58,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:41:58,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 11:41:58,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2019-11-21 11:41:58,745 INFO L87 Difference]: Start difference. First operand 167 states and 171 transitions. Second operand 22 states. [2019-11-21 11:42:01,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:42:01,056 INFO L93 Difference]: Finished difference Result 219 states and 236 transitions. [2019-11-21 11:42:01,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-11-21 11:42:01,057 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 112 [2019-11-21 11:42:01,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:42:01,058 INFO L225 Difference]: With dead ends: 219 [2019-11-21 11:42:01,058 INFO L226 Difference]: Without dead ends: 219 [2019-11-21 11:42:01,061 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 197 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=666, Unknown=0, NotChecked=0, Total=756 [2019-11-21 11:42:01,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-11-21 11:42:01,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 193. [2019-11-21 11:42:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-21 11:42:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 203 transitions. [2019-11-21 11:42:01,073 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 203 transitions. Word has length 112 [2019-11-21 11:42:01,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:42:01,073 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 203 transitions. [2019-11-21 11:42:01,074 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 11:42:01,074 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 203 transitions. [2019-11-21 11:42:01,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-11-21 11:42:01,075 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:42:01,075 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] [2019-11-21 11:42:01,281 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:42:01,282 INFO L410 AbstractCegarLoop]: === Iteration 22 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:42:01,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:42:01,283 INFO L82 PathProgramCache]: Analyzing trace with hash -2133911658, now seen corresponding path program 1 times [2019-11-21 11:42:01,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:42:01,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [847686457] [2019-11-21 11:42:01,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:42:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:42:02,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 44 conjunts are in the unsatisfiable core [2019-11-21 11:42:02,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:42:02,091 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:42:02,092 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:42:02,097 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:42:02,097 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:42:02,097 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:42:02,678 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:02,678 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:42:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:05,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [847686457] [2019-11-21 11:42:05,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:42:05,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21, 18] imperfect sequences [] total 38 [2019-11-21 11:42:05,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421104767] [2019-11-21 11:42:05,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-21 11:42:05,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:42:05,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-21 11:42:05,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1373, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 11:42:05,107 INFO L87 Difference]: Start difference. First operand 193 states and 203 transitions. Second operand 39 states. [2019-11-21 11:42:09,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:42:09,992 INFO L93 Difference]: Finished difference Result 191 states and 199 transitions. [2019-11-21 11:42:09,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-21 11:42:09,996 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 112 [2019-11-21 11:42:09,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:42:09,997 INFO L225 Difference]: With dead ends: 191 [2019-11-21 11:42:09,998 INFO L226 Difference]: Without dead ends: 191 [2019-11-21 11:42:09,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 180 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=157, Invalid=1913, Unknown=0, NotChecked=0, Total=2070 [2019-11-21 11:42:09,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-11-21 11:42:10,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2019-11-21 11:42:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2019-11-21 11:42:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 199 transitions. [2019-11-21 11:42:10,004 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 199 transitions. Word has length 112 [2019-11-21 11:42:10,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:42:10,006 INFO L462 AbstractCegarLoop]: Abstraction has 191 states and 199 transitions. [2019-11-21 11:42:10,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-21 11:42:10,007 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 199 transitions. [2019-11-21 11:42:10,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-11-21 11:42:10,008 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:42:10,009 INFO L410 BasicCegarLoop]: trace histogram [28, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:42:10,215 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:42:10,215 INFO L410 AbstractCegarLoop]: === Iteration 23 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:42:10,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:42:10,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1248040097, now seen corresponding path program 1 times [2019-11-21 11:42:10,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:42:10,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [57957807] [2019-11-21 11:42:10,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:42:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:42:10,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 11:42:10,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:42:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:10,792 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:42:10,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:42:11,164 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:11,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [57957807] [2019-11-21 11:42:11,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:42:11,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 14 [2019-11-21 11:42:11,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309730519] [2019-11-21 11:42:11,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 11:42:11,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:42:11,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 11:42:11,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-11-21 11:42:11,168 INFO L87 Difference]: Start difference. First operand 191 states and 199 transitions. Second operand 14 states. [2019-11-21 11:42:11,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:42:11,369 INFO L93 Difference]: Finished difference Result 195 states and 201 transitions. [2019-11-21 11:42:11,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 11:42:11,370 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 119 [2019-11-21 11:42:11,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:42:11,372 INFO L225 Difference]: With dead ends: 195 [2019-11-21 11:42:11,372 INFO L226 Difference]: Without dead ends: 189 [2019-11-21 11:42:11,373 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-11-21 11:42:11,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2019-11-21 11:42:11,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2019-11-21 11:42:11,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-11-21 11:42:11,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 195 transitions. [2019-11-21 11:42:11,383 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 195 transitions. Word has length 119 [2019-11-21 11:42:11,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:42:11,386 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 195 transitions. [2019-11-21 11:42:11,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 11:42:11,386 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 195 transitions. [2019-11-21 11:42:11,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-21 11:42:11,388 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:42:11,388 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] [2019-11-21 11:42:11,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:42:11,594 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]=== [2019-11-21 11:42:11,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:42:11,594 INFO L82 PathProgramCache]: Analyzing trace with hash -2131108907, now seen corresponding path program 1 times [2019-11-21 11:42:11,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:42:11,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [475406368] [2019-11-21 11:42:11,596 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 [2019-11-21 11:42:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:42:12,240 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 46 conjunts are in the unsatisfiable core [2019-11-21 11:42:12,244 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:42:12,247 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:42:12,247 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:42:12,249 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:42:12,249 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:42:12,249 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:42:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:12,909 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:42:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:13,506 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [475406368] [2019-11-21 11:42:13,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:42:13,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25, 20] imperfect sequences [] total 25 [2019-11-21 11:42:13,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010056442] [2019-11-21 11:42:13,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-21 11:42:13,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:42:13,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-21 11:42:13,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2019-11-21 11:42:13,510 INFO L87 Difference]: Start difference. First operand 189 states and 195 transitions. Second operand 26 states. [2019-11-21 11:42:16,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:42:16,347 INFO L93 Difference]: Finished difference Result 222 states and 238 transitions. [2019-11-21 11:42:16,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-11-21 11:42:16,347 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 125 [2019-11-21 11:42:16,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:42:16,349 INFO L225 Difference]: With dead ends: 222 [2019-11-21 11:42:16,349 INFO L226 Difference]: Without dead ends: 222 [2019-11-21 11:42:16,350 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 214 SyntacticMatches, 11 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=112, Invalid=1010, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 11:42:16,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2019-11-21 11:42:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 195. [2019-11-21 11:42:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2019-11-21 11:42:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 205 transitions. [2019-11-21 11:42:16,357 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 205 transitions. Word has length 125 [2019-11-21 11:42:16,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:42:16,357 INFO L462 AbstractCegarLoop]: Abstraction has 195 states and 205 transitions. [2019-11-21 11:42:16,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-21 11:42:16,358 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 205 transitions. [2019-11-21 11:42:16,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-11-21 11:42:16,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:42:16,359 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] [2019-11-21 11:42:16,564 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:42:16,565 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]=== [2019-11-21 11:42:16,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:42:16,565 INFO L82 PathProgramCache]: Analyzing trace with hash -2131108906, now seen corresponding path program 1 times [2019-11-21 11:42:16,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:42:16,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1556296471] [2019-11-21 11:42:16,567 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 [2019-11-21 11:42:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:42:17,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 56 conjunts are in the unsatisfiable core [2019-11-21 11:42:17,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:42:17,504 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:42:17,505 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:42:17,510 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:42:17,510 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:42:17,510 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:42:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:18,533 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:42:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:22,027 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1556296471] [2019-11-21 11:42:22,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:42:22,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25, 22] imperfect sequences [] total 46 [2019-11-21 11:42:22,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212396919] [2019-11-21 11:42:22,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 47 states [2019-11-21 11:42:22,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:42:22,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2019-11-21 11:42:22,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=2029, Unknown=0, NotChecked=0, Total=2162 [2019-11-21 11:42:22,029 INFO L87 Difference]: Start difference. First operand 195 states and 205 transitions. Second operand 47 states. [2019-11-21 11:42:29,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:42:29,158 INFO L93 Difference]: Finished difference Result 193 states and 202 transitions. [2019-11-21 11:42:29,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-21 11:42:29,160 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 125 [2019-11-21 11:42:29,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:42:29,162 INFO L225 Difference]: With dead ends: 193 [2019-11-21 11:42:29,162 INFO L226 Difference]: Without dead ends: 193 [2019-11-21 11:42:29,163 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 196 SyntacticMatches, 8 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=195, Invalid=2885, Unknown=0, NotChecked=0, Total=3080 [2019-11-21 11:42:29,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-21 11:42:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-11-21 11:42:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-11-21 11:42:29,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 202 transitions. [2019-11-21 11:42:29,171 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 202 transitions. Word has length 125 [2019-11-21 11:42:29,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:42:29,174 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 202 transitions. [2019-11-21 11:42:29,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 47 states. [2019-11-21 11:42:29,174 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 202 transitions. [2019-11-21 11:42:29,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-11-21 11:42:29,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:42:29,176 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] [2019-11-21 11:42:29,383 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:42:29,384 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]=== [2019-11-21 11:42:29,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:42:29,384 INFO L82 PathProgramCache]: Analyzing trace with hash 341366370, now seen corresponding path program 1 times [2019-11-21 11:42:29,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:42:29,385 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [161832552] [2019-11-21 11:42:29,386 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 [2019-11-21 11:42:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:42:30,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 25 conjunts are in the unsatisfiable core [2019-11-21 11:42:30,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:42:31,227 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:31,228 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:42:32,207 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:32,207 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [161832552] [2019-11-21 11:42:32,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:42:32,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22, 21] imperfect sequences [] total 42 [2019-11-21 11:42:32,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379064697] [2019-11-21 11:42:32,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-11-21 11:42:32,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:42:32,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-11-21 11:42:32,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1683, Unknown=0, NotChecked=0, Total=1806 [2019-11-21 11:42:32,212 INFO L87 Difference]: Start difference. First operand 193 states and 202 transitions. Second operand 43 states. [2019-11-21 11:42:35,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:42:35,463 INFO L93 Difference]: Finished difference Result 192 states and 201 transitions. [2019-11-21 11:42:35,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-21 11:42:35,463 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 128 [2019-11-21 11:42:35,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:42:35,469 INFO L225 Difference]: With dead ends: 192 [2019-11-21 11:42:35,469 INFO L226 Difference]: Without dead ends: 192 [2019-11-21 11:42:35,471 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 210 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=179, Invalid=2371, Unknown=0, NotChecked=0, Total=2550 [2019-11-21 11:42:35,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-11-21 11:42:35,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2019-11-21 11:42:35,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-11-21 11:42:35,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 201 transitions. [2019-11-21 11:42:35,480 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 201 transitions. Word has length 128 [2019-11-21 11:42:35,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:42:35,481 INFO L462 AbstractCegarLoop]: Abstraction has 192 states and 201 transitions. [2019-11-21 11:42:35,481 INFO L463 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-11-21 11:42:35,481 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 201 transitions. [2019-11-21 11:42:35,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-11-21 11:42:35,482 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:42:35,482 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, 1, 1] [2019-11-21 11:42:35,692 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:42:35,694 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]=== [2019-11-21 11:42:35,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:42:35,695 INFO L82 PathProgramCache]: Analyzing trace with hash -836717351, now seen corresponding path program 1 times [2019-11-21 11:42:35,696 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:42:35,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2075464544] [2019-11-21 11:42:35,696 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 [2019-11-21 11:42:36,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:42:36,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 82 conjunts are in the unsatisfiable core [2019-11-21 11:42:36,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:42:37,185 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 23 [2019-11-21 11:42:37,186 INFO L343 Elim1Store]: treesize reduction 548, result has 6.0 percent of original size [2019-11-21 11:42:37,186 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 18 case distinctions, treesize of input 183 treesize of output 113 [2019-11-21 11:42:37,188 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:42:37,222 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:42:37,222 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:42:37,223 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:183, output treesize:167 [2019-11-21 11:42:37,345 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2019-11-21 11:42:37,346 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:42:39,845 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-11-21 11:42:40,851 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-11-21 11:42:41,799 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2019-11-21 11:42:42,927 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2019-11-21 11:42:44,395 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:42:44,395 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2075464544] [2019-11-21 11:42:44,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 11:42:44,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 25 [2019-11-21 11:42:44,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168581362] [2019-11-21 11:42:44,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 11:42:44,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:42:44,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 11:42:44,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=551, Unknown=0, NotChecked=0, Total=600 [2019-11-21 11:42:44,396 INFO L87 Difference]: Start difference. First operand 192 states and 201 transitions. Second operand 11 states. [2019-11-21 11:42:55,897 WARN L192 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-11-21 11:43:03,350 WARN L192 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 116 [2019-11-21 11:43:05,940 WARN L192 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-11-21 11:43:08,617 WARN L192 SmtUtils]: Spent 964.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-11-21 11:43:14,073 WARN L192 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 106 [2019-11-21 11:43:17,749 WARN L192 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 93 [2019-11-21 11:43:21,382 WARN L192 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 97 [2019-11-21 11:43:27,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:43:27,396 INFO L93 Difference]: Finished difference Result 154 states and 155 transitions. [2019-11-21 11:43:27,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 11:43:27,398 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 131 [2019-11-21 11:43:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:43:27,398 INFO L225 Difference]: With dead ends: 154 [2019-11-21 11:43:27,399 INFO L226 Difference]: Without dead ends: 154 [2019-11-21 11:43:27,399 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 236 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=97, Invalid=959, Unknown=0, NotChecked=0, Total=1056 [2019-11-21 11:43:27,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-11-21 11:43:27,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2019-11-21 11:43:27,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-21 11:43:27,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 155 transitions. [2019-11-21 11:43:27,403 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 155 transitions. Word has length 131 [2019-11-21 11:43:27,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:43:27,404 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 155 transitions. [2019-11-21 11:43:27,404 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 11:43:27,404 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 155 transitions. [2019-11-21 11:43:27,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-11-21 11:43:27,405 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:43:27,405 INFO L410 BasicCegarLoop]: trace histogram [28, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:43:27,612 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:27,613 INFO L410 AbstractCegarLoop]: === Iteration 28 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:43:27,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:43:27,613 INFO L82 PathProgramCache]: Analyzing trace with hash -790369775, now seen corresponding path program 1 times [2019-11-21 11:43:27,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:43:27,614 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [498614987] [2019-11-21 11:43:27,614 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:43:28,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 38 conjunts are in the unsatisfiable core [2019-11-21 11:43:28,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:43:28,416 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 11:43:28,417 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:43:28,419 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:43:28,419 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:43:28,419 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:43:28,812 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2019-11-21 11:43:28,812 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:43:29,256 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:43:29,257 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) 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.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 11:43:29,264 INFO L168 Benchmark]: Toolchain (without parser) took 139300.95 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 510.7 MB). Free memory was 951.0 MB in the beginning and 1.3 GB in the end (delta: -360.4 MB). Peak memory consumption was 150.3 MB. Max. memory is 11.5 GB. [2019-11-21 11:43:29,264 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:43:29,265 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1021.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-11-21 11:43:29,265 INFO L168 Benchmark]: Boogie Preprocessor took 101.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-21 11:43:29,265 INFO L168 Benchmark]: RCFGBuilder took 1496.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 982.0 MB in the end (delta: 106.5 MB). Peak memory consumption was 106.5 MB. Max. memory is 11.5 GB. [2019-11-21 11:43:29,266 INFO L168 Benchmark]: TraceAbstraction took 136670.88 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 357.0 MB). Free memory was 982.0 MB in the beginning and 1.3 GB in the end (delta: -329.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-21 11:43:29,268 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 1021.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 101.68 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 1496.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 982.0 MB in the end (delta: 106.5 MB). Peak memory consumption was 106.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 136670.88 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 357.0 MB). Free memory was 982.0 MB in the beginning and 1.3 GB in the end (delta: -329.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...