./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- 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/memsafety-ext2/complex_data_creation_test02-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-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 32bit --witnessprinter.graph.data.programhash 9d66dda134cf3fa8347acab6e82f659b1de366bb --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: incompatible size --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 12:28:06,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:28:06,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:28:06,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:28:06,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:28:06,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:28:06,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:28:06,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:28:06,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:28:06,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:28:06,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:28:06,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:28:06,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:28:06,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:28:06,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:28:06,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:28:06,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:28:06,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:28:06,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:28:06,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:28:06,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:28:06,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:28:06,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:28:06,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:28:06,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:28:06,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:28:06,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:28:06,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:28:06,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:28:06,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:28:06,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:28:06,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:28:06,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:28:06,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:28:06,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:28:06,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:28:06,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:28:06,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:28:06,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:28:06,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:28:06,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:28:06,849 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 12:28:06,872 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:28:06,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:28:06,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:28:06,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:28:06,874 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:28:06,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:28:06,875 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 12:28:06,875 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:28:06,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:28:06,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 12:28:06,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:28:06,876 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:28:06,876 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:28:06,876 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:28:06,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:28:06,877 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:28:06,877 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:28:06,877 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 12:28:06,878 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:28:06,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:28:06,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:28:06,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:28:06,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:28:06,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:28:06,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:28:06,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:28:06,880 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:28:06,880 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:28:06,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:28:06,881 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d66dda134cf3fa8347acab6e82f659b1de366bb Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:28:07,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:28:07,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:28:07,210 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:28:07,212 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:28:07,214 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:28:07,215 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i [2019-11-21 12:28:07,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6567c97c8/67820648cc984bca8753e2684c789d5b/FLAGe1167fb67 [2019-11-21 12:28:07,816 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:28:07,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-1.i [2019-11-21 12:28:07,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6567c97c8/67820648cc984bca8753e2684c789d5b/FLAGe1167fb67 [2019-11-21 12:28:08,075 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6567c97c8/67820648cc984bca8753e2684c789d5b [2019-11-21 12:28:08,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:28:08,080 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:28:08,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:28:08,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:28:08,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:28:08,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d265c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08, skipping insertion in model container [2019-11-21 12:28:08,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:28:08,165 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:28:08,582 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 12:28:08,583 INFO L969 CHandler]: at location: C: (int*) malloc(20 * sizeof(data->array)) [545] [2019-11-21 12:28:08,583 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:28:08,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:28:08,624 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:28:08,632 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:28:08,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:28:08,698 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:28:08,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:28:08,819 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:28:08,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08 WrapperNode [2019-11-21 12:28:08,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:28:08,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:28:08,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:28:08,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:28:08,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (1/1) ... [2019-11-21 12:28:08,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:28:08,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:28:08,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:28:08,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:28:08,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (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 12:28:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:28:08,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:28:08,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:28:08,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:28:08,961 INFO L138 BoogieDeclarations]: Found implementation of procedure create_data [2019-11-21 12:28:08,961 INFO L138 BoogieDeclarations]: Found implementation of procedure freeData [2019-11-21 12:28:08,962 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2019-11-21 12:28:08,962 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:28:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-21 12:28:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:28:08,962 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:28:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:28:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:28:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:28:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:28:08,963 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:28:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:28:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:28:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:28:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:28:08,964 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:28:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:28:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:28:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:28:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:28:08,965 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:28:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:28:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:28:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:28:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:28:08,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:28:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:28:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:28:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:28:08,967 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:28:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:28:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:28:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:28:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:28:08,968 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:28:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:28:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:28:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:28:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:28:08,969 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:28:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:28:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:28:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:28:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:28:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:28:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:28:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:28:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:28:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:28:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:28:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:28:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:28:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:28:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:28:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:28:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:28:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:28:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:28:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:28:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:28:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-21 12:28:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:28:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:28:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:28:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:28:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:28:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:28:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:28:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:28:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:28:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:28:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:28:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:28:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:28:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:28:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:28:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:28:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:28:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:28:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:28:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:28:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:28:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:28:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:28:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:28:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:28:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:28:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:28:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:28:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:28:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:28:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:28:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:28:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:28:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:28:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:28:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:28:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:28:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:28:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:28:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:28:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:28:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:28:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:28:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:28:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:28:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:28:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:28:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:28:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:28:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure create_data [2019-11-21 12:28:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:28:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:28:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:28:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:28:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:28:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure freeData [2019-11-21 12:28:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:28:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure append [2019-11-21 12:28:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:28:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:28:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:28:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:28:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:28:10,253 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:28:10,254 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 12:28:10,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:28:10 BoogieIcfgContainer [2019-11-21 12:28:10,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:28:10,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:28:10,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:28:10,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:28:10,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:28:08" (1/3) ... [2019-11-21 12:28:10,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b543705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:28:10, skipping insertion in model container [2019-11-21 12:28:10,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:08" (2/3) ... [2019-11-21 12:28:10,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b543705 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:28:10, skipping insertion in model container [2019-11-21 12:28:10,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:28:10" (3/3) ... [2019-11-21 12:28:10,264 INFO L109 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test02-1.i [2019-11-21 12:28:10,274 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:28:10,283 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 92 error locations. [2019-11-21 12:28:10,295 INFO L249 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2019-11-21 12:28:10,316 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:28:10,316 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:28:10,317 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:28:10,317 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:28:10,317 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:28:10,318 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:28:10,318 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:28:10,318 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:28:10,341 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2019-11-21 12:28:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-21 12:28:10,351 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:10,352 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:10,353 INFO L410 AbstractCegarLoop]: === Iteration 1 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:10,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:10,360 INFO L82 PathProgramCache]: Analyzing trace with hash -243394811, now seen corresponding path program 1 times [2019-11-21 12:28:10,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:10,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [280459178] [2019-11-21 12:28:10,373 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 12:28:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:10,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-21 12:28:10,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:10,626 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 12:28:10,626 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:10,644 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 12:28:10,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [280459178] [2019-11-21 12:28:10,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:10,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:28:10,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067045224] [2019-11-21 12:28:10,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-21 12:28:10,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:10,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-21 12:28:10,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-21 12:28:10,666 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2019-11-21 12:28:10,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:10,695 INFO L93 Difference]: Finished difference Result 200 states and 211 transitions. [2019-11-21 12:28:10,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-21 12:28:10,696 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-21 12:28:10,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:10,708 INFO L225 Difference]: With dead ends: 200 [2019-11-21 12:28:10,708 INFO L226 Difference]: Without dead ends: 197 [2019-11-21 12:28:10,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-21 12:28:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-11-21 12:28:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2019-11-21 12:28:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2019-11-21 12:28:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 208 transitions. [2019-11-21 12:28:10,762 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 208 transitions. Word has length 8 [2019-11-21 12:28:10,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:10,762 INFO L462 AbstractCegarLoop]: Abstraction has 197 states and 208 transitions. [2019-11-21 12:28:10,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-21 12:28:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 208 transitions. [2019-11-21 12:28:10,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-21 12:28:10,764 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:10,764 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:10,966 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:10,968 INFO L410 AbstractCegarLoop]: === Iteration 2 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:10,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:10,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1044781659, now seen corresponding path program 1 times [2019-11-21 12:28:10,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:10,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1123799739] [2019-11-21 12:28:10,974 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 12:28:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:11,187 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-21 12:28:11,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:11,240 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 12:28:11,240 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:11,246 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:11,246 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:11,246 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:28:11,307 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:11,308 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 12:28:11,310 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:11,332 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:28:11,334 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:28:11,334 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 12:28:11,357 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 12:28:11,357 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:11,428 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 12:28:11,428 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1123799739] [2019-11-21 12:28:11,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:11,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-21 12:28:11,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495511713] [2019-11-21 12:28:11,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 12:28:11,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:11,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 12:28:11,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-21 12:28:11,432 INFO L87 Difference]: Start difference. First operand 197 states and 208 transitions. Second operand 8 states. [2019-11-21 12:28:12,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:12,734 INFO L93 Difference]: Finished difference Result 191 states and 202 transitions. [2019-11-21 12:28:12,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:28:12,736 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-21 12:28:12,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:12,738 INFO L225 Difference]: With dead ends: 191 [2019-11-21 12:28:12,738 INFO L226 Difference]: Without dead ends: 191 [2019-11-21 12:28:12,739 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:28:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-11-21 12:28:12,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2019-11-21 12:28:12,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2019-11-21 12:28:12,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2019-11-21 12:28:12,755 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 9 [2019-11-21 12:28:12,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:12,756 INFO L462 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2019-11-21 12:28:12,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 12:28:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2019-11-21 12:28:12,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-21 12:28:12,757 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:12,757 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:12,960 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:12,960 INFO L410 AbstractCegarLoop]: === Iteration 3 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:12,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:12,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1044781660, now seen corresponding path program 1 times [2019-11-21 12:28:12,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:12,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1641076867] [2019-11-21 12:28:12,963 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 12:28:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:13,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 12:28:13,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:13,162 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 12:28:13,163 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:13,180 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:13,185 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 12:28:13,186 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:13,201 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:13,201 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:13,202 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:28:13,250 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:28:13,252 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-21 12:28:13,253 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:13,273 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:13,280 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:28:13,281 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-21 12:28:13,282 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:13,292 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:13,293 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:28:13,293 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:27, output treesize:16 [2019-11-21 12:28:13,318 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 12:28:13,318 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:13,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:28:13,657 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 12:28:13,657 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1641076867] [2019-11-21 12:28:13,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:13,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-21 12:28:13,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136781360] [2019-11-21 12:28:13,658 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 12:28:13,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:13,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 12:28:13,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-21 12:28:13,659 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand 8 states. [2019-11-21 12:28:22,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:22,758 INFO L93 Difference]: Finished difference Result 206 states and 221 transitions. [2019-11-21 12:28:22,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-21 12:28:22,760 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-11-21 12:28:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:22,763 INFO L225 Difference]: With dead ends: 206 [2019-11-21 12:28:22,763 INFO L226 Difference]: Without dead ends: 206 [2019-11-21 12:28:22,764 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-11-21 12:28:22,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2019-11-21 12:28:22,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 189. [2019-11-21 12:28:22,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-11-21 12:28:22,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 200 transitions. [2019-11-21 12:28:22,780 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 200 transitions. Word has length 9 [2019-11-21 12:28:22,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:22,780 INFO L462 AbstractCegarLoop]: Abstraction has 189 states and 200 transitions. [2019-11-21 12:28:22,781 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 12:28:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 200 transitions. [2019-11-21 12:28:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-21 12:28:22,781 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:22,782 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:22,982 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:22,983 INFO L410 AbstractCegarLoop]: === Iteration 4 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:22,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:22,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1971506722, now seen corresponding path program 1 times [2019-11-21 12:28:22,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:22,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1598366396] [2019-11-21 12:28:22,985 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 12:28:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:23,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 12:28:23,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:23,187 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 12:28:23,187 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:23,190 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:23,190 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:23,190 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:28:23,201 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 12:28:23,201 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:23,219 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 12:28:23,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1598366396] [2019-11-21 12:28:23,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:23,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2019-11-21 12:28:23,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717080932] [2019-11-21 12:28:23,220 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-21 12:28:23,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:23,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-21 12:28:23,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-21 12:28:23,222 INFO L87 Difference]: Start difference. First operand 189 states and 200 transitions. Second operand 4 states. [2019-11-21 12:28:23,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:23,610 INFO L93 Difference]: Finished difference Result 187 states and 198 transitions. [2019-11-21 12:28:23,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:28:23,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-21 12:28:23,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:23,614 INFO L225 Difference]: With dead ends: 187 [2019-11-21 12:28:23,614 INFO L226 Difference]: Without dead ends: 187 [2019-11-21 12:28:23,614 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-21 12:28:23,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-11-21 12:28:23,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2019-11-21 12:28:23,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-11-21 12:28:23,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 198 transitions. [2019-11-21 12:28:23,627 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 198 transitions. Word has length 10 [2019-11-21 12:28:23,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:23,627 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 198 transitions. [2019-11-21 12:28:23,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-21 12:28:23,628 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 198 transitions. [2019-11-21 12:28:23,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-21 12:28:23,628 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:23,628 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:23,831 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:23,832 INFO L410 AbstractCegarLoop]: === Iteration 5 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:23,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1971506721, now seen corresponding path program 1 times [2019-11-21 12:28:23,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:23,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [883013255] [2019-11-21 12:28:23,834 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 12:28:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:24,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:28:24,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:24,033 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 12:28:24,033 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:24,039 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:24,040 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:24,040 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 12:28:24,048 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 12:28:24,049 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:24,078 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 12:28:24,078 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [883013255] [2019-11-21 12:28:24,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:24,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-21 12:28:24,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928019096] [2019-11-21 12:28:24,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-21 12:28:24,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:24,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-21 12:28:24,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-21 12:28:24,082 INFO L87 Difference]: Start difference. First operand 187 states and 198 transitions. Second operand 4 states. [2019-11-21 12:28:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:24,670 INFO L93 Difference]: Finished difference Result 185 states and 196 transitions. [2019-11-21 12:28:24,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:28:24,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-21 12:28:24,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:24,673 INFO L225 Difference]: With dead ends: 185 [2019-11-21 12:28:24,673 INFO L226 Difference]: Without dead ends: 185 [2019-11-21 12:28:24,674 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-21 12:28:24,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2019-11-21 12:28:24,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2019-11-21 12:28:24,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-11-21 12:28:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 196 transitions. [2019-11-21 12:28:24,684 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 196 transitions. Word has length 10 [2019-11-21 12:28:24,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:24,685 INFO L462 AbstractCegarLoop]: Abstraction has 185 states and 196 transitions. [2019-11-21 12:28:24,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-21 12:28:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 196 transitions. [2019-11-21 12:28:24,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 12:28:24,686 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:24,686 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:24,894 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:24,894 INFO L410 AbstractCegarLoop]: === Iteration 6 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:24,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:24,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1603176019, now seen corresponding path program 1 times [2019-11-21 12:28:24,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:24,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1879161146] [2019-11-21 12:28:24,896 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 12:28:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:25,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-21 12:28:25,094 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:25,117 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 12:28:25,118 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,125 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:25,126 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,126 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:23 [2019-11-21 12:28:25,178 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:25,178 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-21 12:28:25,179 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,190 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:25,190 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,191 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:22 [2019-11-21 12:28:25,227 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-11-21 12:28:25,227 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,254 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:25,261 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2019-11-21 12:28:25,262 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,283 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:25,284 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,285 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:48, output treesize:18 [2019-11-21 12:28:25,315 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-21 12:28:25,316 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,324 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:25,326 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-21 12:28:25,326 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,329 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:25,330 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:25,330 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:7 [2019-11-21 12:28:25,344 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 12:28:25,344 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:26,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:28:29,200 WARN L192 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 39 [2019-11-21 12:28:29,240 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 12:28:29,240 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1879161146] [2019-11-21 12:28:29,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:29,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2019-11-21 12:28:29,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534179124] [2019-11-21 12:28:29,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 12:28:29,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:29,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 12:28:29,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2019-11-21 12:28:29,242 INFO L87 Difference]: Start difference. First operand 185 states and 196 transitions. Second operand 11 states. [2019-11-21 12:28:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:31,394 INFO L93 Difference]: Finished difference Result 193 states and 206 transitions. [2019-11-21 12:28:31,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 12:28:31,397 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 15 [2019-11-21 12:28:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:31,399 INFO L225 Difference]: With dead ends: 193 [2019-11-21 12:28:31,399 INFO L226 Difference]: Without dead ends: 193 [2019-11-21 12:28:31,400 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2019-11-21 12:28:31,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-11-21 12:28:31,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 192. [2019-11-21 12:28:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-11-21 12:28:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 204 transitions. [2019-11-21 12:28:31,411 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 204 transitions. Word has length 15 [2019-11-21 12:28:31,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:31,411 INFO L462 AbstractCegarLoop]: Abstraction has 192 states and 204 transitions. [2019-11-21 12:28:31,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 12:28:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 204 transitions. [2019-11-21 12:28:31,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:28:31,413 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:31,413 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 12:28:31,616 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:31,616 INFO L410 AbstractCegarLoop]: === Iteration 7 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:31,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:31,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1235118745, now seen corresponding path program 1 times [2019-11-21 12:28:31,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:31,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [816174921] [2019-11-21 12:28:31,619 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 12:28:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:31,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:28:31,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:31,869 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 12:28:31,869 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:31,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:28:31,907 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 12:28:31,907 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [816174921] [2019-11-21 12:28:31,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:31,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 12:28:31,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593360352] [2019-11-21 12:28:31,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-21 12:28:31,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:31,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-21 12:28:31,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-21 12:28:31,909 INFO L87 Difference]: Start difference. First operand 192 states and 204 transitions. Second operand 4 states. [2019-11-21 12:28:31,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:31,963 INFO L93 Difference]: Finished difference Result 270 states and 286 transitions. [2019-11-21 12:28:31,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:28:31,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-11-21 12:28:31,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:31,965 INFO L225 Difference]: With dead ends: 270 [2019-11-21 12:28:31,965 INFO L226 Difference]: Without dead ends: 270 [2019-11-21 12:28:31,966 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:28:31,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2019-11-21 12:28:31,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 234. [2019-11-21 12:28:31,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-11-21 12:28:31,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 286 transitions. [2019-11-21 12:28:31,979 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 286 transitions. Word has length 17 [2019-11-21 12:28:31,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:31,980 INFO L462 AbstractCegarLoop]: Abstraction has 234 states and 286 transitions. [2019-11-21 12:28:31,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-21 12:28:31,980 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 286 transitions. [2019-11-21 12:28:31,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 12:28:31,981 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:31,981 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:32,183 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:32,185 INFO L410 AbstractCegarLoop]: === Iteration 8 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:32,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:32,186 INFO L82 PathProgramCache]: Analyzing trace with hash -366018359, now seen corresponding path program 1 times [2019-11-21 12:28:32,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:32,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [762565154] [2019-11-21 12:28:32,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:32,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 12:28:32,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:32,422 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-11-21 12:28:32,423 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 1 case distinctions, treesize of input 9 treesize of output 11 [2019-11-21 12:28:32,423 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:32,428 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:32,429 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:28:32,429 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-11-21 12:28:32,444 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 12:28:32,444 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:32,452 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 12:28:32,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [762565154] [2019-11-21 12:28:32,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:32,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:28:32,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354635963] [2019-11-21 12:28:32,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 12:28:32,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:32,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 12:28:32,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:28:32,454 INFO L87 Difference]: Start difference. First operand 234 states and 286 transitions. Second operand 3 states. [2019-11-21 12:28:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:32,905 INFO L93 Difference]: Finished difference Result 237 states and 282 transitions. [2019-11-21 12:28:32,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:28:32,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-21 12:28:32,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:32,907 INFO L225 Difference]: With dead ends: 237 [2019-11-21 12:28:32,907 INFO L226 Difference]: Without dead ends: 237 [2019-11-21 12:28:32,908 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 12:28:32,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2019-11-21 12:28:32,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 228. [2019-11-21 12:28:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-11-21 12:28:32,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 276 transitions. [2019-11-21 12:28:32,918 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 276 transitions. Word has length 18 [2019-11-21 12:28:32,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:32,918 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 276 transitions. [2019-11-21 12:28:32,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 12:28:32,918 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 276 transitions. [2019-11-21 12:28:32,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 12:28:32,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:32,920 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:33,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:33,121 INFO L410 AbstractCegarLoop]: === Iteration 9 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:33,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:33,121 INFO L82 PathProgramCache]: Analyzing trace with hash -366018358, now seen corresponding path program 1 times [2019-11-21 12:28:33,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:33,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [133403720] [2019-11-21 12:28:33,123 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 12:28:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:33,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:28:33,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:33,365 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_112|], 1=[|v_#valid_160|]} [2019-11-21 12:28:33,368 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:28:33,370 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-11-21 12:28:33,370 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:33,401 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:33,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:28:33,410 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-21 12:28:33,411 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:33,418 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:33,419 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:28:33,419 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:14 [2019-11-21 12:28:33,429 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 12:28:33,429 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:33,461 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 12:28:33,461 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [133403720] [2019-11-21 12:28:33,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:33,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-21 12:28:33,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814765065] [2019-11-21 12:28:33,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-21 12:28:33,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:33,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-21 12:28:33,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-21 12:28:33,464 INFO L87 Difference]: Start difference. First operand 228 states and 276 transitions. Second operand 4 states. [2019-11-21 12:28:34,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:34,411 INFO L93 Difference]: Finished difference Result 253 states and 298 transitions. [2019-11-21 12:28:34,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-21 12:28:34,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-21 12:28:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:34,414 INFO L225 Difference]: With dead ends: 253 [2019-11-21 12:28:34,415 INFO L226 Difference]: Without dead ends: 253 [2019-11-21 12:28:34,415 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-21 12:28:34,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-11-21 12:28:34,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 219. [2019-11-21 12:28:34,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-11-21 12:28:34,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 258 transitions. [2019-11-21 12:28:34,423 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 258 transitions. Word has length 18 [2019-11-21 12:28:34,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:34,423 INFO L462 AbstractCegarLoop]: Abstraction has 219 states and 258 transitions. [2019-11-21 12:28:34,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-21 12:28:34,424 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 258 transitions. [2019-11-21 12:28:34,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 12:28:34,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:34,425 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] [2019-11-21 12:28:34,627 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:34,628 INFO L410 AbstractCegarLoop]: === Iteration 10 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:34,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:34,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1170583220, now seen corresponding path program 1 times [2019-11-21 12:28:34,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:34,631 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2060838022] [2019-11-21 12:28:34,631 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 12:28:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:34,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:28:34,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:34,865 INFO L343 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2019-11-21 12:28:34,866 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 1 case distinctions, treesize of input 9 treesize of output 11 [2019-11-21 12:28:34,866 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:34,871 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:34,871 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:28:34,872 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:9, output treesize:11 [2019-11-21 12:28:34,893 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-21 12:28:34,893 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:34,901 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:34,902 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:34,902 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-21 12:28:34,919 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2019-11-21 12:28:34,919 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:34,921 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:34,921 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:34,922 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:21, output treesize:7 [2019-11-21 12:28:34,929 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 12:28:34,930 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:34,951 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 12:28:34,951 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2060838022] [2019-11-21 12:28:34,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:34,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 12:28:34,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459321769] [2019-11-21 12:28:34,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:28:34,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:34,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:28:34,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:28:34,952 INFO L87 Difference]: Start difference. First operand 219 states and 258 transitions. Second operand 5 states. [2019-11-21 12:28:35,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:35,639 INFO L93 Difference]: Finished difference Result 228 states and 264 transitions. [2019-11-21 12:28:35,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:28:35,639 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 12:28:35,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:35,642 INFO L225 Difference]: With dead ends: 228 [2019-11-21 12:28:35,642 INFO L226 Difference]: Without dead ends: 228 [2019-11-21 12:28:35,642 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:28:35,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-11-21 12:28:35,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 218. [2019-11-21 12:28:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2019-11-21 12:28:35,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 256 transitions. [2019-11-21 12:28:35,650 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 256 transitions. Word has length 22 [2019-11-21 12:28:35,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:35,650 INFO L462 AbstractCegarLoop]: Abstraction has 218 states and 256 transitions. [2019-11-21 12:28:35,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:28:35,651 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 256 transitions. [2019-11-21 12:28:35,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 12:28:35,651 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:35,651 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] [2019-11-21 12:28:35,852 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:35,852 INFO L410 AbstractCegarLoop]: === Iteration 11 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:35,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:35,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1170583221, now seen corresponding path program 1 times [2019-11-21 12:28:35,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:35,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2096976841] [2019-11-21 12:28:35,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:36,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-21 12:28:36,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:36,098 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:36,099 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 12:28:36,099 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:36,125 INFO L567 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-21 12:28:36,125 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:36,126 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-21 12:28:36,145 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-21 12:28:36,145 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:36,157 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:36,161 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-21 12:28:36,161 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:36,172 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:36,173 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:36,173 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:21 [2019-11-21 12:28:36,211 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2019-11-21 12:28:36,212 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:36,224 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:36,231 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2019-11-21 12:28:36,232 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:36,239 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:36,240 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:36,240 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:14 [2019-11-21 12:28:36,256 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 12:28:36,257 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:28:36,590 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 12:28:36,591 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2096976841] [2019-11-21 12:28:36,591 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:28:36,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-21 12:28:36,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251775519] [2019-11-21 12:28:36,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 12:28:36,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:28:36,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 12:28:36,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-21 12:28:36,592 INFO L87 Difference]: Start difference. First operand 218 states and 256 transitions. Second operand 10 states. [2019-11-21 12:28:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:28:39,734 INFO L93 Difference]: Finished difference Result 322 states and 378 transitions. [2019-11-21 12:28:39,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 12:28:39,735 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-21 12:28:39,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:28:39,738 INFO L225 Difference]: With dead ends: 322 [2019-11-21 12:28:39,738 INFO L226 Difference]: Without dead ends: 322 [2019-11-21 12:28:39,739 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2019-11-21 12:28:39,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-11-21 12:28:39,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 234. [2019-11-21 12:28:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-11-21 12:28:39,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 274 transitions. [2019-11-21 12:28:39,747 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 274 transitions. Word has length 22 [2019-11-21 12:28:39,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:28:39,748 INFO L462 AbstractCegarLoop]: Abstraction has 234 states and 274 transitions. [2019-11-21 12:28:39,748 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 12:28:39,748 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 274 transitions. [2019-11-21 12:28:39,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-21 12:28:39,749 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:28:39,749 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:28:39,952 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:28:39,953 INFO L410 AbstractCegarLoop]: === Iteration 12 === [create_dataErr3REQUIRES_VIOLATION, create_dataErr25REQUIRES_VIOLATION, create_dataErr2REQUIRES_VIOLATION, create_dataErr4REQUIRES_VIOLATION, create_dataErr24REQUIRES_VIOLATION, create_dataErr22REQUIRES_VIOLATION, create_dataErr0REQUIRES_VIOLATION, create_dataErr23REQUIRES_VIOLATION, create_dataErr21REQUIRES_VIOLATION, create_dataErr1REQUIRES_VIOLATION, create_dataErr30REQUIRES_VIOLATION, create_dataErr8REQUIRES_VIOLATION, create_dataErr31REQUIRES_VIOLATION, create_dataErr29REQUIRES_VIOLATION, create_dataErr9REQUIRES_VIOLATION, create_dataErr5REQUIRES_VIOLATION, create_dataErr28REQUIRES_VIOLATION, create_dataErr7REQUIRES_VIOLATION, create_dataErr26REQUIRES_VIOLATION, create_dataErr6REQUIRES_VIOLATION, create_dataErr27REQUIRES_VIOLATION, create_dataErr14REQUIRES_VIOLATION, create_dataErr15REQUIRES_VIOLATION, create_dataErr36REQUIRES_VIOLATION, create_dataErr13REQUIRES_VIOLATION, create_dataErr34REQUIRES_VIOLATION, create_dataErr35REQUIRES_VIOLATION, create_dataErr33REQUIRES_VIOLATION, create_dataErr12REQUIRES_VIOLATION, create_dataErr10REQUIRES_VIOLATION, create_dataErr32REQUIRES_VIOLATION, create_dataErr11REQUIRES_VIOLATION, create_dataErr20REQUIRES_VIOLATION, create_dataErr18REQUIRES_VIOLATION, create_dataErr19REQUIRES_VIOLATION, create_dataErr17REQUIRES_VIOLATION, create_dataErr38REQUIRES_VIOLATION, create_dataErr39REQUIRES_VIOLATION, create_dataErr37REQUIRES_VIOLATION, create_dataErr16REQUIRES_VIOLATION, freeDataErr6ASSERT_VIOLATIONMEMORY_FREE, freeDataErr1REQUIRES_VIOLATION, freeDataErr2ASSERT_VIOLATIONMEMORY_FREE, freeDataErr3ASSERT_VIOLATIONMEMORY_FREE, freeDataErr5ASSERT_VIOLATIONMEMORY_FREE, freeDataErr7ASSERT_VIOLATIONMEMORY_FREE, freeDataErr0REQUIRES_VIOLATION, freeDataErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr8REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr27ENSURES_VIOLATIONMEMORY_LEAK, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr23ASSERT_VIOLATIONMEMORY_FREE, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr22ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr17REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr24ASSERT_VIOLATIONMEMORY_FREE, appendErr10REQUIRES_VIOLATION, appendErr11REQUIRES_VIOLATION, appendErr12REQUIRES_VIOLATION, appendErr1REQUIRES_VIOLATION, appendErr8REQUIRES_VIOLATION, appendErr0REQUIRES_VIOLATION, appendErr9REQUIRES_VIOLATION, appendErr5REQUIRES_VIOLATION, appendErr3REQUIRES_VIOLATION, appendErr6REQUIRES_VIOLATION, appendErr2REQUIRES_VIOLATION, appendErr7REQUIRES_VIOLATION, appendErr13REQUIRES_VIOLATION, appendErr14REQUIRES_VIOLATION, appendErr4REQUIRES_VIOLATION, appendErr15REQUIRES_VIOLATION]=== [2019-11-21 12:28:39,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:28:39,954 INFO L82 PathProgramCache]: Analyzing trace with hash 191017845, now seen corresponding path program 1 times [2019-11-21 12:28:39,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:28:39,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [735747664] [2019-11-21 12:28:39,955 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 12:28:40,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:28:40,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 12:28:40,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:28:40,371 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_117|], 1=[|v_#valid_174|]} [2019-11-21 12:28:40,376 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:28:40,377 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-11-21 12:28:40,377 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:40,387 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:40,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:28:40,394 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-21 12:28:40,395 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:40,402 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:40,403 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:40,403 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:14 [2019-11-21 12:28:40,422 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-21 12:28:40,422 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:40,443 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:40,449 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2019-11-21 12:28:40,449 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:40,474 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:40,475 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:28:40,475 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:26 [2019-11-21 12:28:40,603 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:40,604 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 107 [2019-11-21 12:28:40,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:28:40,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:28:40,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:28:40,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:28:40,611 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 4 xjuncts. [2019-11-21 12:28:40,775 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2019-11-21 12:28:40,776 INFO L567 ElimStorePlain]: treesize reduction 258, result has 22.1 percent of original size [2019-11-21 12:28:40,782 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:28:40,783 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2019-11-21 12:28:40,784 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:28:40,812 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:40,813 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:28:40,813 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:112, output treesize:63 [2019-11-21 12:28:46,865 WARN L192 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 12:28:48,952 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 12:28:51,012 WARN L192 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 12:28:51,018 INFO L392 ElimStorePlain]: Different costs {2=[|v_#memory_$Pointer$.base_71|], 12=[|v_#memory_$Pointer$.offset_70|]} [2019-11-21 12:28:51,090 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:28:51,090 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 131 treesize of output 133 [2019-11-21 12:28:51,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:28:51,094 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-11-21 12:28:51,297 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-11-21 12:28:51,298 INFO L567 ElimStorePlain]: treesize reduction 159, result has 46.8 percent of original size [2019-11-21 12:28:51,307 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:28:51,468 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-11-21 12:28:51,469 INFO L343 Elim1Store]: treesize reduction 18, result has 89.8 percent of original size [2019-11-21 12:28:51,470 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 206 [2019-11-21 12:28:51,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:28:51,472 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:29:05,670 WARN L192 SmtUtils]: Spent 14.20 s on a formula simplification that was a NOOP. DAG size: 57 [2019-11-21 12:29:05,670 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:29:05,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:29:05,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:05,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:05,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:05,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:05,678 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-21 12:29:05,679 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:150, output treesize:251 [2019-11-21 12:29:05,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:29:05,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:05,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:05,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:05,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:11,846 WARN L192 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 62 [2019-11-21 12:29:11,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:29:11,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:11,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:11,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:29:11,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:30:45,722 WARN L192 SmtUtils]: Spent 1.43 m on a formula simplification that was a NOOP. DAG size: 78 [2019-11-21 12:32:12,134 WARN L192 SmtUtils]: Spent 1.44 m on a formula simplification that was a NOOP. DAG size: 154 [2019-11-21 12:32:12,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-21 12:32:12,167 INFO L392 ElimStorePlain]: Different costs {156=[|#memory_$Pointer$.base|], 462=[|#memory_$Pointer$.offset|]} [2019-11-21 12:32:12,214 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:12,305 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:32:12,306 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 152 [2019-11-21 12:32:12,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:32:12,307 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:12,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:12,466 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:32:12,467 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 189 treesize of output 152 [2019-11-21 12:32:12,468 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:32:12,468 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:12,620 INFO L343 Elim1Store]: treesize reduction 18, result has 68.4 percent of original size [2019-11-21 12:32:12,621 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 149 treesize of output 124 [2019-11-21 12:32:12,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:32:12,623 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:12,772 INFO L343 Elim1Store]: treesize reduction 18, result has 68.4 percent of original size [2019-11-21 12:32:12,773 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 104 [2019-11-21 12:32:12,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:32:12,775 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:12,840 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:12,940 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:32:12,941 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 162 treesize of output 137 [2019-11-21 12:32:12,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:32:12,943 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:13,066 INFO L343 Elim1Store]: treesize reduction 18, result has 68.4 percent of original size [2019-11-21 12:32:13,067 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 216 treesize of output 167 [2019-11-21 12:32:13,069 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:32:13,069 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:18,721 WARN L192 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2019-11-21 12:32:18,723 INFO L567 ElimStorePlain]: treesize reduction 21, result has 96.2 percent of original size [2019-11-21 12:32:18,793 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:18,926 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2019-11-21 12:32:18,927 INFO L343 Elim1Store]: treesize reduction 36, result has 67.0 percent of original size [2019-11-21 12:32:18,928 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 99 treesize of output 105 [2019-11-21 12:32:18,928 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:18,965 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:18,970 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:18,995 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,027 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,121 INFO L237 Elim1Store]: Index analysis took 160 ms [2019-11-21 12:32:19,161 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:32:19,161 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 105 treesize of output 75 [2019-11-21 12:32:19,162 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:19,187 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,191 INFO L343 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2019-11-21 12:32:19,191 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 27 [2019-11-21 12:32:19,192 INFO L496 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:19,210 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,213 INFO L343 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2019-11-21 12:32:19,213 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 30 [2019-11-21 12:32:19,214 INFO L496 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:19,243 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,265 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,346 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:32:19,347 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 93 [2019-11-21 12:32:19,348 INFO L496 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:19,375 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,377 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,394 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,396 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,397 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,409 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:32:19,430 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:32:19,431 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 60 [2019-11-21 12:32:19,433 INFO L496 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-11-21 12:32:19,510 INFO L567 ElimStorePlain]: treesize reduction 88, result has 19.3 percent of original size [2019-11-21 12:32:19,510 INFO L496 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:32:19,511 INFO L221 ElimStorePlain]: Needed 13 recursive calls to eliminate 14 variables, input treesize:1023, output treesize:21 [2019-11-21 12:32:19,652 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:32:19,652 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:32:20,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:32:20,379 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:32:20,400 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:32:20,424 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:32:20,594 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-11-21 12:32:20,595 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:32:20,611 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:32:20,625 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:32:20,637 INFO L496 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:32:20,862 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-21 12:32:20,862 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:32:20,864 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 9 dim-0 vars, and 3 xjuncts. [2019-11-21 12:32:20,864 INFO L221 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:215, output treesize:250 [2019-11-21 12:32:29,736 WARN L192 SmtUtils]: Spent 644.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-11-21 12:32:40,245 WARN L192 SmtUtils]: Spent 989.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-21 12:32:50,649 WARN L192 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-11-21 12:32:50,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:32:50,878 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:32:50,879 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:152) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:64) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:390) 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 12:32:50,883 INFO L168 Benchmark]: Toolchain (without parser) took 282802.97 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 298.3 MB). Free memory was 957.7 MB in the beginning and 996.6 MB in the end (delta: -38.9 MB). Peak memory consumption was 259.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:32:50,883 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:32:50,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -123.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:32:50,884 INFO L168 Benchmark]: Boogie Preprocessor took 86.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:32:50,884 INFO L168 Benchmark]: RCFGBuilder took 1347.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 990.5 MB in the end (delta: 85.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:32:50,885 INFO L168 Benchmark]: TraceAbstraction took 280624.95 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 189.8 MB). Free memory was 990.5 MB in the beginning and 996.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 183.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:32:50,891 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 738.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -123.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1347.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 990.5 MB in the end (delta: 85.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 280624.95 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 189.8 MB). Free memory was 990.5 MB in the beginning and 996.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 183.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...