./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 906a4fb5 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/forester-heap/dll-rb-cnstr_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.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 79a0f3fe2cfdc34f95f5ad882c4d01fe846ad912 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally 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/forester-heap/dll-rb-cnstr_1-2.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 79a0f3fe2cfdc34f95f5ad882c4d01fe846ad912 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:12:23,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:12:23,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:12:23,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:12:23,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:12:23,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:12:23,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:12:23,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:12:23,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:12:23,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:12:23,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:12:23,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:12:23,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:12:23,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:12:23,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:12:23,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:12:23,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:12:23,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:12:23,650 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:12:23,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:12:23,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:12:23,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:12:23,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:12:23,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:12:23,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:12:23,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:12:23,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:12:23,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:12:23,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:12:23,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:12:23,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:12:23,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:12:23,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:12:23,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:12:23,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:12:23,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:12:23,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:12:23,697 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:12:23,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:12:23,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:12:23,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:12:23,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:12:23,743 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:12:23,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:12:23,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:12:23,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:12:23,747 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:12:23,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:12:23,747 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:12:23,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:12:23,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:12:23,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:12:23,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:12:23,750 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:12:23,750 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:12:23,751 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:12:23,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:12:23,751 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:12:23,752 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:12:23,752 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:12:23,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:12:23,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:12:23,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:12:23,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:12:23,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:12:23,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:12:23,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:12:23,754 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:12:23,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:12:23,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:12:23,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 79a0f3fe2cfdc34f95f5ad882c4d01fe846ad912 [2020-10-19 18:12:24,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:12:24,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:12:24,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:12:24,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:12:24,088 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:12:24,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2020-10-19 18:12:24,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66a41b435/e5e26664900745d1bfa2c64b8edff78a/FLAG66d7fd091 [2020-10-19 18:12:24,666 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:12:24,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2020-10-19 18:12:24,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66a41b435/e5e26664900745d1bfa2c64b8edff78a/FLAG66d7fd091 [2020-10-19 18:12:24,998 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66a41b435/e5e26664900745d1bfa2c64b8edff78a [2020-10-19 18:12:25,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:12:25,008 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:12:25,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:12:25,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:12:25,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:12:25,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@431e87cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25, skipping insertion in model container [2020-10-19 18:12:25,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:12:25,095 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:12:25,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:12:25,584 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:12:25,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:12:25,693 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:12:25,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25 WrapperNode [2020-10-19 18:12:25,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:12:25,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:12:25,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:12:25,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:12:25,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (1/1) ... [2020-10-19 18:12:25,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:12:25,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:12:25,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:12:25,804 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:12:25,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (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 [2020-10-19 18:12:25,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:12:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:12:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:12:25,878 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:12:25,879 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:12:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:12:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:12:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:12:25,880 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:12:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:12:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:12:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:12:25,881 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:12:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:12:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:12:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:12:25,882 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:12:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:12:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:12:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:12:25,883 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:12:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:12:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:12:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:12:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:12:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:12:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:12:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:12:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:12:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:12:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:12:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:12:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:12:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:12:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:12:25,886 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:12:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:12:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:12:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:12:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:12:25,887 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:12:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:12:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:12:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:12:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:12:25,888 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:12:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:12:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:12:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:12:25,889 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:12:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:12:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:12:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:12:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:12:25,890 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-19 18:12:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:12:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:12:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:12:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:12:25,891 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:12:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:12:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:12:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:12:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:12:25,892 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:12:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:12:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:12:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:12:25,893 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:12:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:12:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:12:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:12:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:12:25,894 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:12:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:12:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:12:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:12:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:12:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:12:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:12:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:12:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:12:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:12:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:12:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:12:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:12:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:12:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:12:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:12:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:12:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:12:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:12:25,898 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:12:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:12:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:12:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:12:25,899 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:12:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:12:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:12:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:12:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:12:25,900 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:12:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:12:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:12:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:12:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:12:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:12:25,901 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:12:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:12:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:12:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:12:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:12:25,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:12:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:12:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:12:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:12:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:12:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:12:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:12:26,640 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:12:26,641 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 18:12:26,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:12:26 BoogieIcfgContainer [2020-10-19 18:12:26,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:12:26,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:12:26,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:12:26,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:12:26,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:12:25" (1/3) ... [2020-10-19 18:12:26,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a645c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:12:26, skipping insertion in model container [2020-10-19 18:12:26,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:25" (2/3) ... [2020-10-19 18:12:26,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a645c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:12:26, skipping insertion in model container [2020-10-19 18:12:26,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:12:26" (3/3) ... [2020-10-19 18:12:26,651 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-2.i [2020-10-19 18:12:26,663 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:12:26,672 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2020-10-19 18:12:26,686 INFO L253 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2020-10-19 18:12:26,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:12:26,707 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:12:26,707 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:12:26,708 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:12:26,708 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:12:26,708 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:12:26,708 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:12:26,709 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:12:26,731 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-10-19 18:12:26,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:12:26,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:26,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:26,741 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:26,746 INFO L82 PathProgramCache]: Analyzing trace with hash -617895342, now seen corresponding path program 1 times [2020-10-19 18:12:26,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:26,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331926179] [2020-10-19 18:12:26,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:26,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:26,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331926179] [2020-10-19 18:12:26,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:26,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:12:26,992 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227752280] [2020-10-19 18:12:27,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:12:27,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:27,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:12:27,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:12:27,020 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 4 states. [2020-10-19 18:12:27,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:27,520 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2020-10-19 18:12:27,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:12:27,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:12:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:27,540 INFO L225 Difference]: With dead ends: 141 [2020-10-19 18:12:27,540 INFO L226 Difference]: Without dead ends: 137 [2020-10-19 18:12:27,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:12:27,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-19 18:12:27,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 133. [2020-10-19 18:12:27,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-19 18:12:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 142 transitions. [2020-10-19 18:12:27,602 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 142 transitions. Word has length 7 [2020-10-19 18:12:27,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:27,603 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 142 transitions. [2020-10-19 18:12:27,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:12:27,603 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 142 transitions. [2020-10-19 18:12:27,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:12:27,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:27,604 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:27,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:12:27,605 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:27,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:27,605 INFO L82 PathProgramCache]: Analyzing trace with hash -617895341, now seen corresponding path program 1 times [2020-10-19 18:12:27,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:27,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025426013] [2020-10-19 18:12:27,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:27,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:27,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:27,695 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025426013] [2020-10-19 18:12:27,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:27,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:12:27,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315933662] [2020-10-19 18:12:27,698 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:12:27,698 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:27,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:12:27,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:12:27,699 INFO L87 Difference]: Start difference. First operand 133 states and 142 transitions. Second operand 4 states. [2020-10-19 18:12:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:28,031 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2020-10-19 18:12:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:12:28,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:12:28,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:28,033 INFO L225 Difference]: With dead ends: 150 [2020-10-19 18:12:28,034 INFO L226 Difference]: Without dead ends: 150 [2020-10-19 18:12:28,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:12:28,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-19 18:12:28,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 137. [2020-10-19 18:12:28,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-19 18:12:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 146 transitions. [2020-10-19 18:12:28,048 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 146 transitions. Word has length 7 [2020-10-19 18:12:28,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:28,048 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 146 transitions. [2020-10-19 18:12:28,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:12:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 146 transitions. [2020-10-19 18:12:28,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:12:28,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:28,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:28,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:12:28,050 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:28,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:28,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1237136187, now seen corresponding path program 1 times [2020-10-19 18:12:28,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:28,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583456246] [2020-10-19 18:12:28,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:28,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:28,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:28,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583456246] [2020-10-19 18:12:28,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:28,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:12:28,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937074117] [2020-10-19 18:12:28,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:12:28,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:28,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:12:28,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:12:28,174 INFO L87 Difference]: Start difference. First operand 137 states and 146 transitions. Second operand 5 states. [2020-10-19 18:12:28,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:28,526 INFO L93 Difference]: Finished difference Result 142 states and 152 transitions. [2020-10-19 18:12:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:12:28,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-19 18:12:28,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:28,529 INFO L225 Difference]: With dead ends: 142 [2020-10-19 18:12:28,529 INFO L226 Difference]: Without dead ends: 142 [2020-10-19 18:12:28,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:12:28,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-19 18:12:28,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 127. [2020-10-19 18:12:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-19 18:12:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2020-10-19 18:12:28,539 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 13 [2020-10-19 18:12:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:28,540 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2020-10-19 18:12:28,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:12:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2020-10-19 18:12:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:12:28,541 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:28,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:28,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:12:28,542 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:28,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1237136188, now seen corresponding path program 1 times [2020-10-19 18:12:28,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:28,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693905852] [2020-10-19 18:12:28,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:28,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:28,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693905852] [2020-10-19 18:12:28,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:28,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:12:28,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444050634] [2020-10-19 18:12:28,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:12:28,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:28,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:12:28,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:12:28,673 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand 7 states. [2020-10-19 18:12:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:29,181 INFO L93 Difference]: Finished difference Result 169 states and 183 transitions. [2020-10-19 18:12:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:12:29,182 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-19 18:12:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:29,184 INFO L225 Difference]: With dead ends: 169 [2020-10-19 18:12:29,184 INFO L226 Difference]: Without dead ends: 169 [2020-10-19 18:12:29,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:12:29,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-10-19 18:12:29,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 139. [2020-10-19 18:12:29,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-19 18:12:29,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 155 transitions. [2020-10-19 18:12:29,210 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 155 transitions. Word has length 13 [2020-10-19 18:12:29,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:29,211 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 155 transitions. [2020-10-19 18:12:29,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:12:29,212 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 155 transitions. [2020-10-19 18:12:29,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:12:29,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:29,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:29,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:12:29,213 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:29,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:29,214 INFO L82 PathProgramCache]: Analyzing trace with hash -818065122, now seen corresponding path program 1 times [2020-10-19 18:12:29,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:29,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078787296] [2020-10-19 18:12:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:29,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:29,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:29,284 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078787296] [2020-10-19 18:12:29,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:29,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:12:29,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956471775] [2020-10-19 18:12:29,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:12:29,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:29,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:12:29,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:12:29,286 INFO L87 Difference]: Start difference. First operand 139 states and 155 transitions. Second operand 6 states. [2020-10-19 18:12:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:29,665 INFO L93 Difference]: Finished difference Result 194 states and 219 transitions. [2020-10-19 18:12:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:12:29,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-19 18:12:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:29,667 INFO L225 Difference]: With dead ends: 194 [2020-10-19 18:12:29,667 INFO L226 Difference]: Without dead ends: 194 [2020-10-19 18:12:29,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:12:29,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-19 18:12:29,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 138. [2020-10-19 18:12:29,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-19 18:12:29,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 153 transitions. [2020-10-19 18:12:29,675 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 153 transitions. Word has length 15 [2020-10-19 18:12:29,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:29,676 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 153 transitions. [2020-10-19 18:12:29,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:12:29,676 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 153 transitions. [2020-10-19 18:12:29,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:12:29,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:29,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:29,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:12:29,677 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:29,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:29,678 INFO L82 PathProgramCache]: Analyzing trace with hash -818065121, now seen corresponding path program 1 times [2020-10-19 18:12:29,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:29,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775188686] [2020-10-19 18:12:29,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:29,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:29,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:29,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775188686] [2020-10-19 18:12:29,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:29,817 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:12:29,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087615989] [2020-10-19 18:12:29,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:12:29,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:29,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:12:29,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:12:29,819 INFO L87 Difference]: Start difference. First operand 138 states and 153 transitions. Second operand 6 states. [2020-10-19 18:12:30,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:30,323 INFO L93 Difference]: Finished difference Result 217 states and 243 transitions. [2020-10-19 18:12:30,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:12:30,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-19 18:12:30,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:30,326 INFO L225 Difference]: With dead ends: 217 [2020-10-19 18:12:30,326 INFO L226 Difference]: Without dead ends: 217 [2020-10-19 18:12:30,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:12:30,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-10-19 18:12:30,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 137. [2020-10-19 18:12:30,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-19 18:12:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 151 transitions. [2020-10-19 18:12:30,334 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 151 transitions. Word has length 15 [2020-10-19 18:12:30,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:30,334 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 151 transitions. [2020-10-19 18:12:30,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:12:30,335 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 151 transitions. [2020-10-19 18:12:30,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:12:30,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:30,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:30,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 18:12:30,336 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:30,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:30,337 INFO L82 PathProgramCache]: Analyzing trace with hash -187070592, now seen corresponding path program 1 times [2020-10-19 18:12:30,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:30,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816880714] [2020-10-19 18:12:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:30,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:30,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816880714] [2020-10-19 18:12:30,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:30,391 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:12:30,391 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162510282] [2020-10-19 18:12:30,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:12:30,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:30,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:12:30,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:12:30,393 INFO L87 Difference]: Start difference. First operand 137 states and 151 transitions. Second operand 5 states. [2020-10-19 18:12:30,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:30,649 INFO L93 Difference]: Finished difference Result 151 states and 162 transitions. [2020-10-19 18:12:30,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:12:30,649 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-19 18:12:30,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:30,651 INFO L225 Difference]: With dead ends: 151 [2020-10-19 18:12:30,651 INFO L226 Difference]: Without dead ends: 151 [2020-10-19 18:12:30,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:12:30,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-10-19 18:12:30,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 136. [2020-10-19 18:12:30,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-19 18:12:30,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 147 transitions. [2020-10-19 18:12:30,661 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 147 transitions. Word has length 17 [2020-10-19 18:12:30,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:30,661 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 147 transitions. [2020-10-19 18:12:30,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:12:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 147 transitions. [2020-10-19 18:12:30,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:12:30,664 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:30,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:30,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 18:12:30,665 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:30,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:30,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1688417841, now seen corresponding path program 1 times [2020-10-19 18:12:30,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:30,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964670363] [2020-10-19 18:12:30,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:30,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:30,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:30,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964670363] [2020-10-19 18:12:30,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:30,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-19 18:12:30,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506812201] [2020-10-19 18:12:30,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:12:30,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:30,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:12:30,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:12:30,811 INFO L87 Difference]: Start difference. First operand 136 states and 147 transitions. Second operand 7 states. [2020-10-19 18:12:31,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:31,151 INFO L93 Difference]: Finished difference Result 194 states and 212 transitions. [2020-10-19 18:12:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:12:31,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-10-19 18:12:31,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:31,154 INFO L225 Difference]: With dead ends: 194 [2020-10-19 18:12:31,154 INFO L226 Difference]: Without dead ends: 194 [2020-10-19 18:12:31,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:12:31,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-10-19 18:12:31,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 141. [2020-10-19 18:12:31,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-10-19 18:12:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 152 transitions. [2020-10-19 18:12:31,161 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 152 transitions. Word has length 20 [2020-10-19 18:12:31,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:31,162 INFO L481 AbstractCegarLoop]: Abstraction has 141 states and 152 transitions. [2020-10-19 18:12:31,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:12:31,162 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 152 transitions. [2020-10-19 18:12:31,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-19 18:12:31,163 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:31,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:31,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 18:12:31,164 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:31,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:31,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1608040737, now seen corresponding path program 1 times [2020-10-19 18:12:31,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:31,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129807084] [2020-10-19 18:12:31,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:31,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:31,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129807084] [2020-10-19 18:12:31,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:31,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-19 18:12:31,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217291178] [2020-10-19 18:12:31,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:12:31,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:31,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:12:31,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:12:31,323 INFO L87 Difference]: Start difference. First operand 141 states and 152 transitions. Second operand 11 states. [2020-10-19 18:12:32,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:32,196 INFO L93 Difference]: Finished difference Result 145 states and 156 transitions. [2020-10-19 18:12:32,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-19 18:12:32,197 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-10-19 18:12:32,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:32,198 INFO L225 Difference]: With dead ends: 145 [2020-10-19 18:12:32,198 INFO L226 Difference]: Without dead ends: 145 [2020-10-19 18:12:32,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-19 18:12:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-19 18:12:32,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 137. [2020-10-19 18:12:32,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-10-19 18:12:32,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 149 transitions. [2020-10-19 18:12:32,206 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 149 transitions. Word has length 19 [2020-10-19 18:12:32,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:32,207 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 149 transitions. [2020-10-19 18:12:32,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:12:32,207 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 149 transitions. [2020-10-19 18:12:32,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-19 18:12:32,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:32,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:32,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 18:12:32,208 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:32,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1608040736, now seen corresponding path program 1 times [2020-10-19 18:12:32,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:32,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469513794] [2020-10-19 18:12:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:32,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:32,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:32,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469513794] [2020-10-19 18:12:32,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:32,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-19 18:12:32,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686594520] [2020-10-19 18:12:32,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:12:32,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:32,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:12:32,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:12:32,375 INFO L87 Difference]: Start difference. First operand 137 states and 149 transitions. Second operand 10 states. [2020-10-19 18:12:32,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:32,911 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2020-10-19 18:12:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:12:32,911 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-10-19 18:12:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:32,913 INFO L225 Difference]: With dead ends: 137 [2020-10-19 18:12:32,913 INFO L226 Difference]: Without dead ends: 137 [2020-10-19 18:12:32,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:12:32,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-19 18:12:32,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 136. [2020-10-19 18:12:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-10-19 18:12:32,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 148 transitions. [2020-10-19 18:12:32,918 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 148 transitions. Word has length 19 [2020-10-19 18:12:32,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:32,919 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 148 transitions. [2020-10-19 18:12:32,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:12:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 148 transitions. [2020-10-19 18:12:32,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 18:12:32,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:32,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:32,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 18:12:32,921 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:32,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:32,921 INFO L82 PathProgramCache]: Analyzing trace with hash 345747901, now seen corresponding path program 1 times [2020-10-19 18:12:32,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:32,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125588383] [2020-10-19 18:12:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:32,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:33,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:12:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:33,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125588383] [2020-10-19 18:12:33,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:33,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:12:33,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673955727] [2020-10-19 18:12:33,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:12:33,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:12:33,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:12:33,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:12:33,028 INFO L87 Difference]: Start difference. First operand 136 states and 148 transitions. Second operand 6 states. [2020-10-19 18:12:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:33,301 INFO L93 Difference]: Finished difference Result 140 states and 151 transitions. [2020-10-19 18:12:33,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:12:33,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-10-19 18:12:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:33,303 INFO L225 Difference]: With dead ends: 140 [2020-10-19 18:12:33,303 INFO L226 Difference]: Without dead ends: 140 [2020-10-19 18:12:33,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:12:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-19 18:12:33,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 135. [2020-10-19 18:12:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-19 18:12:33,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2020-10-19 18:12:33,309 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 24 [2020-10-19 18:12:33,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:33,309 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2020-10-19 18:12:33,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:12:33,309 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2020-10-19 18:12:33,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-19 18:12:33,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:33,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:33,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 18:12:33,310 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:33,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:33,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1850084719, now seen corresponding path program 1 times [2020-10-19 18:12:33,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:12:33,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170686196] [2020-10-19 18:12:33,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:12:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:12:33,323 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:12:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:12:33,333 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:12:33,365 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:12:33,365 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:12:33,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 18:12:33,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:12:33 BoogieIcfgContainer [2020-10-19 18:12:33,406 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:12:33,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:12:33,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:12:33,407 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:12:33,407 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:12:26" (3/4) ... [2020-10-19 18:12:33,411 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:12:33,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:12:33,414 INFO L168 Benchmark]: Toolchain (without parser) took 8409.82 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 322.4 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). Peak memory consumption was 173.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:33,414 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:12:33,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:33,416 INFO L168 Benchmark]: Boogie Preprocessor took 108.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:33,416 INFO L168 Benchmark]: RCFGBuilder took 839.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:33,417 INFO L168 Benchmark]: TraceAbstraction took 6761.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 167.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -40.4 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:33,418 INFO L168 Benchmark]: Witness Printer took 4.54 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:12:33,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 684.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -182.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 108.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 839.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6761.92 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 167.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -40.4 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.54 ms. Allocated memory is still 1.4 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 991]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 991. Possible FailurePath: [L1005] SLL* list = malloc(sizeof(SLL)); VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] list->next = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1007] list->prev = ((void*)0) VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1008] list->colour = BLACK VAL [list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1010] SLL* end = list; VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1013] COND FALSE !(__VERIFIER_nondet_int()) [L1036] end = ((void*)0) [L1037] end = list VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1040] COND FALSE !(!(((void*)0) != end)) VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1041] EXPR end->colour VAL [end={-1:0}, end->colour=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1041] COND FALSE !(!(BLACK == end->colour)) [L1043] COND TRUE ((void*)0) != end VAL [end={-1:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1045] EXPR end->colour VAL [end={-1:0}, end->colour=1, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1045] COND FALSE !(RED == end->colour) [L1051] EXPR end->next VAL [end={-1:0}, end->next={0:0}, list={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1051] COND TRUE !(end->next) [L1051] CALL reach_error() [L991] COND FALSE !(0) [L991] __assert_fail ("0", "dll-rb-cnstr_1-2.c", 11, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 146 locations, 63 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.6s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 913 SDtfs, 1560 SDslu, 1481 SDs, 0 SdLazy, 4007 SolverSat, 195 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 280 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 195 NumberOfCodeBlocks, 195 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 14754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-906a4fb [2020-10-19 18:12:35,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:12:35,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:12:35,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:12:35,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:12:35,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:12:35,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:12:35,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:12:35,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:12:35,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:12:35,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:12:35,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:12:35,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:12:35,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:12:35,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:12:35,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:12:35,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:12:35,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:12:35,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:12:35,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:12:35,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:12:35,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:12:35,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:12:35,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:12:35,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:12:35,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:12:35,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:12:35,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:12:35,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:12:35,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:12:35,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:12:35,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:12:35,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:12:35,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:12:35,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:12:35,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:12:35,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:12:35,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:12:35,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:12:35,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:12:35,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:12:35,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:12:35,572 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:12:35,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:12:35,574 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:12:35,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:12:35,575 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:12:35,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:12:35,576 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:12:35,576 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:12:35,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:12:35,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:12:35,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:12:35,578 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:12:35,578 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:12:35,579 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:12:35,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:12:35,579 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:12:35,580 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:12:35,580 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:12:35,580 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:12:35,580 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:12:35,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:12:35,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:12:35,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:12:35,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:12:35,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:12:35,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:12:35,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:12:35,583 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:12:35,583 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:12:35,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:12:35,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:12:35,584 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 -> 79a0f3fe2cfdc34f95f5ad882c4d01fe846ad912 [2020-10-19 18:12:35,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:12:35,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:12:35,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:12:35,965 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:12:35,969 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:12:35,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2020-10-19 18:12:36,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a87007cfd/474d1e19a085475cb6b147eadee6b68d/FLAG844a65f40 [2020-10-19 18:12:36,516 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:12:36,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-2.i [2020-10-19 18:12:36,530 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a87007cfd/474d1e19a085475cb6b147eadee6b68d/FLAG844a65f40 [2020-10-19 18:12:36,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a87007cfd/474d1e19a085475cb6b147eadee6b68d [2020-10-19 18:12:36,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:12:36,877 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:12:36,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:12:36,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:12:36,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:12:36,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:12:36" (1/1) ... [2020-10-19 18:12:36,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93e202f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:36, skipping insertion in model container [2020-10-19 18:12:36,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:12:36" (1/1) ... [2020-10-19 18:12:36,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:12:36,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:12:37,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:12:37,569 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:12:37,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:12:37,697 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:12:37,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37 WrapperNode [2020-10-19 18:12:37,698 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:12:37,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:12:37,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:12:37,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:12:37,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (1/1) ... [2020-10-19 18:12:37,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (1/1) ... [2020-10-19 18:12:37,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (1/1) ... [2020-10-19 18:12:37,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (1/1) ... [2020-10-19 18:12:37,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (1/1) ... [2020-10-19 18:12:37,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (1/1) ... [2020-10-19 18:12:37,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (1/1) ... [2020-10-19 18:12:37,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:12:37,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:12:37,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:12:37,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:12:37,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (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 [2020-10-19 18:12:37,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:12:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:12:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:12:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:12:37,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:12:37,843 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:12:37,844 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:12:37,845 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:12:37,846 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:12:37,847 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:12:37,848 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:12:37,849 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:12:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:12:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:12:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:12:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:12:37,850 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:12:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:12:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:12:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:12:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:12:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:12:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:12:37,851 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:12:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:12:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:12:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:12:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:12:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:12:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:12:37,852 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:12:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:12:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:12:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:12:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:12:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-19 18:12:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:12:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:12:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:12:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:12:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:12:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:12:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:12:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:12:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:12:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:12:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:12:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:12:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:12:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:12:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:12:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:12:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:12:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:12:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:12:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:12:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:12:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:12:37,856 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:12:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:12:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:12:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:12:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:12:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:12:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:12:37,857 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:12:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:12:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:12:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:12:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:12:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:12:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:12:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:12:37,858 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:12:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:12:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:12:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:12:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:12:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:12:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:12:37,859 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:12:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:12:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:12:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:12:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:12:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:12:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:12:37,860 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:12:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:12:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:12:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:12:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:12:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:12:37,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 18:12:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:12:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 18:12:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:12:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:12:37,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-19 18:12:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:12:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:12:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-19 18:12:37,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-19 18:12:38,885 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:12:38,886 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 18:12:38,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:12:38 BoogieIcfgContainer [2020-10-19 18:12:38,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:12:38,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:12:38,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:12:38,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:12:38,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:12:36" (1/3) ... [2020-10-19 18:12:38,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e0caa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:12:38, skipping insertion in model container [2020-10-19 18:12:38,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:12:37" (2/3) ... [2020-10-19 18:12:38,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e0caa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:12:38, skipping insertion in model container [2020-10-19 18:12:38,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:12:38" (3/3) ... [2020-10-19 18:12:38,899 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-2.i [2020-10-19 18:12:38,924 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:12:38,940 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 63 error locations. [2020-10-19 18:12:38,962 INFO L253 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2020-10-19 18:12:38,986 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:12:38,986 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:12:38,986 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:12:38,987 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:12:38,987 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:12:38,987 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:12:38,987 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:12:38,988 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:12:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-10-19 18:12:39,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:12:39,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:39,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:39,030 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:39,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:39,036 INFO L82 PathProgramCache]: Analyzing trace with hash 603083622, now seen corresponding path program 1 times [2020-10-19 18:12:39,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:39,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1594849271] [2020-10-19 18:12:39,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:39,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:12:39,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:39,293 INFO L384 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 [2020-10-19 18:12:39,293 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:39,302 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:39,302 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:39,303 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:12:39,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:39,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:12:39,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:39,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1594849271] [2020-10-19 18:12:39,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:39,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:12:39,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934127125] [2020-10-19 18:12:39,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:12:39,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:12:39,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:12:39,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:12:39,363 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 3 states. [2020-10-19 18:12:39,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:39,731 INFO L93 Difference]: Finished difference Result 139 states and 147 transitions. [2020-10-19 18:12:39,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:12:39,733 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-19 18:12:39,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:39,745 INFO L225 Difference]: With dead ends: 139 [2020-10-19 18:12:39,746 INFO L226 Difference]: Without dead ends: 135 [2020-10-19 18:12:39,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:12:39,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-19 18:12:39,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 131. [2020-10-19 18:12:39,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-10-19 18:12:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 140 transitions. [2020-10-19 18:12:39,801 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 140 transitions. Word has length 7 [2020-10-19 18:12:39,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:39,802 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 140 transitions. [2020-10-19 18:12:39,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:12:39,802 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 140 transitions. [2020-10-19 18:12:39,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:12:39,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:39,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:40,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:12:40,020 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:40,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:40,021 INFO L82 PathProgramCache]: Analyzing trace with hash 603083623, now seen corresponding path program 1 times [2020-10-19 18:12:40,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:40,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979234499] [2020-10-19 18:12:40,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:40,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:40,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:12:40,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:40,163 INFO L384 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 [2020-10-19 18:12:40,163 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:40,171 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:40,172 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:40,172 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:12:40,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:40,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:12:40,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:40,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979234499] [2020-10-19 18:12:40,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:40,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-19 18:12:40,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178409746] [2020-10-19 18:12:40,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:12:40,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:12:40,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:12:40,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:12:40,249 INFO L87 Difference]: Start difference. First operand 131 states and 140 transitions. Second operand 4 states. [2020-10-19 18:12:40,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:40,719 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2020-10-19 18:12:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:12:40,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:12:40,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:40,722 INFO L225 Difference]: With dead ends: 148 [2020-10-19 18:12:40,723 INFO L226 Difference]: Without dead ends: 148 [2020-10-19 18:12:40,724 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:12:40,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-19 18:12:40,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 135. [2020-10-19 18:12:40,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-19 18:12:40,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2020-10-19 18:12:40,738 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 7 [2020-10-19 18:12:40,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:40,738 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2020-10-19 18:12:40,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:12:40,739 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2020-10-19 18:12:40,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:12:40,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:40,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:40,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:12:40,958 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:40,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:40,960 INFO L82 PathProgramCache]: Analyzing trace with hash -738246619, now seen corresponding path program 1 times [2020-10-19 18:12:40,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:40,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865646431] [2020-10-19 18:12:40,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:41,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:12:41,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:41,141 INFO L384 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 [2020-10-19 18:12:41,142 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:41,145 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:41,145 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:41,145 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:12:41,188 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:41,188 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 30 [2020-10-19 18:12:41,191 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:41,208 INFO L625 ElimStorePlain]: treesize reduction 14, result has 44.0 percent of original size [2020-10-19 18:12:41,210 INFO L545 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. [2020-10-19 18:12:41,210 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2020-10-19 18:12:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:41,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:12:41,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:41,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865646431] [2020-10-19 18:12:41,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:41,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 18:12:41,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005213326] [2020-10-19 18:12:41,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:12:41,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:12:41,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:12:41,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:12:41,251 INFO L87 Difference]: Start difference. First operand 135 states and 144 transitions. Second operand 4 states. [2020-10-19 18:12:41,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:41,731 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2020-10-19 18:12:41,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:12:41,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-19 18:12:41,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:41,734 INFO L225 Difference]: With dead ends: 140 [2020-10-19 18:12:41,734 INFO L226 Difference]: Without dead ends: 140 [2020-10-19 18:12:41,734 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:12:41,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-19 18:12:41,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 125. [2020-10-19 18:12:41,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-19 18:12:41,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 137 transitions. [2020-10-19 18:12:41,746 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 137 transitions. Word has length 12 [2020-10-19 18:12:41,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:41,746 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 137 transitions. [2020-10-19 18:12:41,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:12:41,747 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 137 transitions. [2020-10-19 18:12:41,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:12:41,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:41,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:41,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:12:41,971 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:41,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:41,971 INFO L82 PathProgramCache]: Analyzing trace with hash -738246618, now seen corresponding path program 1 times [2020-10-19 18:12:41,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:41,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375763810] [2020-10-19 18:12:41,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:42,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:12:42,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:42,127 INFO L384 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 [2020-10-19 18:12:42,128 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:42,133 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:42,134 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:42,134 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:12:42,175 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:42,176 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 28 [2020-10-19 18:12:42,178 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:42,202 INFO L625 ElimStorePlain]: treesize reduction 14, result has 50.0 percent of original size [2020-10-19 18:12:42,203 INFO L545 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. [2020-10-19 18:12:42,203 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:14 [2020-10-19 18:12:42,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:42,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:12:42,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:42,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375763810] [2020-10-19 18:12:42,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:42,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2020-10-19 18:12:42,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327310947] [2020-10-19 18:12:42,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-19 18:12:42,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:12:42,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-19 18:12:42,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:12:42,443 INFO L87 Difference]: Start difference. First operand 125 states and 137 transitions. Second operand 7 states. [2020-10-19 18:12:43,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:43,816 INFO L93 Difference]: Finished difference Result 175 states and 190 transitions. [2020-10-19 18:12:43,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:12:43,817 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-10-19 18:12:43,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:43,819 INFO L225 Difference]: With dead ends: 175 [2020-10-19 18:12:43,819 INFO L226 Difference]: Without dead ends: 175 [2020-10-19 18:12:43,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:12:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-19 18:12:43,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 124. [2020-10-19 18:12:43,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-19 18:12:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 137 transitions. [2020-10-19 18:12:43,829 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 137 transitions. Word has length 12 [2020-10-19 18:12:43,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:43,829 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 137 transitions. [2020-10-19 18:12:43,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-19 18:12:43,829 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 137 transitions. [2020-10-19 18:12:43,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 18:12:43,830 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:43,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:44,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 18:12:44,051 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:44,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:44,052 INFO L82 PathProgramCache]: Analyzing trace with hash -785396184, now seen corresponding path program 1 times [2020-10-19 18:12:44,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:44,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [396554313] [2020-10-19 18:12:44,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:44,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:12:44,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:44,158 INFO L384 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 [2020-10-19 18:12:44,158 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:44,160 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:44,160 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:44,160 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:12:44,184 INFO L384 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 11 treesize of output 7 [2020-10-19 18:12:44,184 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:44,197 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:44,198 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:44,198 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2020-10-19 18:12:44,220 INFO L384 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 11 [2020-10-19 18:12:44,221 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:44,225 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:44,225 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:44,225 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:7 [2020-10-19 18:12:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:44,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:12:44,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:44,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [396554313] [2020-10-19 18:12:44,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:44,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 18:12:44,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819744464] [2020-10-19 18:12:44,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:12:44,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:12:44,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:12:44,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:12:44,253 INFO L87 Difference]: Start difference. First operand 124 states and 137 transitions. Second operand 5 states. [2020-10-19 18:12:44,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:44,753 INFO L93 Difference]: Finished difference Result 175 states and 197 transitions. [2020-10-19 18:12:44,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:12:44,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-19 18:12:44,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:44,755 INFO L225 Difference]: With dead ends: 175 [2020-10-19 18:12:44,755 INFO L226 Difference]: Without dead ends: 175 [2020-10-19 18:12:44,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:12:44,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-10-19 18:12:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 123. [2020-10-19 18:12:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-19 18:12:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 136 transitions. [2020-10-19 18:12:44,764 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 136 transitions. Word has length 14 [2020-10-19 18:12:44,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:44,764 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 136 transitions. [2020-10-19 18:12:44,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:12:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 136 transitions. [2020-10-19 18:12:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 18:12:44,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:44,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:44,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 18:12:44,973 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:44,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:44,973 INFO L82 PathProgramCache]: Analyzing trace with hash -785396183, now seen corresponding path program 1 times [2020-10-19 18:12:44,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:44,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203542955] [2020-10-19 18:12:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:45,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:12:45,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:45,098 INFO L384 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 [2020-10-19 18:12:45,098 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:45,103 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:45,104 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:45,104 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:12:45,129 INFO L384 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 11 treesize of output 7 [2020-10-19 18:12:45,129 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:45,141 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:45,147 INFO L384 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 11 treesize of output 7 [2020-10-19 18:12:45,147 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:45,156 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:45,157 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:45,158 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:28, output treesize:17 [2020-10-19 18:12:45,185 INFO L384 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 [2020-10-19 18:12:45,186 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:45,195 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:45,198 INFO L384 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 11 [2020-10-19 18:12:45,198 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:45,204 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:45,204 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:45,204 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:33, output treesize:11 [2020-10-19 18:12:45,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:45,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:12:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:45,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203542955] [2020-10-19 18:12:45,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:45,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-19 18:12:45,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705900578] [2020-10-19 18:12:45,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 18:12:45,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:12:45,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 18:12:45,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:12:45,358 INFO L87 Difference]: Start difference. First operand 123 states and 136 transitions. Second operand 8 states. [2020-10-19 18:12:46,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:46,649 INFO L93 Difference]: Finished difference Result 198 states and 222 transitions. [2020-10-19 18:12:46,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:12:46,651 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2020-10-19 18:12:46,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:46,652 INFO L225 Difference]: With dead ends: 198 [2020-10-19 18:12:46,652 INFO L226 Difference]: Without dead ends: 198 [2020-10-19 18:12:46,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:12:46,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-19 18:12:46,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 122. [2020-10-19 18:12:46,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-19 18:12:46,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 135 transitions. [2020-10-19 18:12:46,668 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 135 transitions. Word has length 14 [2020-10-19 18:12:46,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:46,668 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 135 transitions. [2020-10-19 18:12:46,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 18:12:46,668 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 135 transitions. [2020-10-19 18:12:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-19 18:12:46,669 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:46,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:46,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 18:12:46,884 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:46,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:46,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1142053481, now seen corresponding path program 1 times [2020-10-19 18:12:46,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:46,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437520188] [2020-10-19 18:12:46,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:46,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:12:46,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:47,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:12:47,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:47,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437520188] [2020-10-19 18:12:47,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:47,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 18:12:47,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426309300] [2020-10-19 18:12:47,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:12:47,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:12:47,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:12:47,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:12:47,014 INFO L87 Difference]: Start difference. First operand 122 states and 135 transitions. Second operand 4 states. [2020-10-19 18:12:47,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:47,349 INFO L93 Difference]: Finished difference Result 143 states and 154 transitions. [2020-10-19 18:12:47,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:12:47,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-10-19 18:12:47,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:47,351 INFO L225 Difference]: With dead ends: 143 [2020-10-19 18:12:47,352 INFO L226 Difference]: Without dead ends: 143 [2020-10-19 18:12:47,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:12:47,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-10-19 18:12:47,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 121. [2020-10-19 18:12:47,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-19 18:12:47,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2020-10-19 18:12:47,358 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 16 [2020-10-19 18:12:47,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:47,359 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2020-10-19 18:12:47,359 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:12:47,359 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2020-10-19 18:12:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-19 18:12:47,360 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:47,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:47,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 18:12:47,569 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:47,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:47,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1955707076, now seen corresponding path program 1 times [2020-10-19 18:12:47,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:47,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984761120] [2020-10-19 18:12:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:47,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:12:47,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:47,692 INFO L384 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 [2020-10-19 18:12:47,692 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:47,695 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:47,695 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:47,696 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:9 [2020-10-19 18:12:47,731 INFO L384 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 [2020-10-19 18:12:47,732 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:47,734 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:47,734 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:47,735 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:19, output treesize:3 [2020-10-19 18:12:47,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:47,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:12:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:12:47,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984761120] [2020-10-19 18:12:47,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:47,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-10-19 18:12:47,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525112394] [2020-10-19 18:12:47,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:12:47,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:12:47,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:12:47,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:12:47,758 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 5 states. [2020-10-19 18:12:48,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:12:48,304 INFO L93 Difference]: Finished difference Result 178 states and 195 transitions. [2020-10-19 18:12:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:12:48,306 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-10-19 18:12:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:12:48,307 INFO L225 Difference]: With dead ends: 178 [2020-10-19 18:12:48,307 INFO L226 Difference]: Without dead ends: 178 [2020-10-19 18:12:48,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:12:48,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-10-19 18:12:48,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 126. [2020-10-19 18:12:48,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-19 18:12:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 136 transitions. [2020-10-19 18:12:48,317 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 136 transitions. Word has length 19 [2020-10-19 18:12:48,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:12:48,318 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 136 transitions. [2020-10-19 18:12:48,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:12:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 136 transitions. [2020-10-19 18:12:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 18:12:48,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:12:48,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:12:48,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 18:12:48,521 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ENSURES_VIOLATIONMEMORY_LEAK, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr48ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr50ASSERT_VIOLATIONMEMORY_FREE, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr49ASSERT_VIOLATIONMEMORY_FREE, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:12:48,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:12:48,521 INFO L82 PathProgramCache]: Analyzing trace with hash -86276502, now seen corresponding path program 1 times [2020-10-19 18:12:48,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:12:48,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571794555] [2020-10-19 18:12:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-19 18:12:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:48,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:12:48,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:48,675 INFO L384 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 [2020-10-19 18:12:48,675 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:48,677 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:48,678 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:48,678 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:12:48,707 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:48,708 INFO L384 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 [2020-10-19 18:12:48,709 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:48,734 INFO L625 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2020-10-19 18:12:48,735 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:48,735 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2020-10-19 18:12:48,759 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2020-10-19 18:12:48,760 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:48,770 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:48,771 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:48,772 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:27 [2020-10-19 18:12:48,851 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:48,851 INFO L384 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 41 treesize of output 59 [2020-10-19 18:12:48,861 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[5, 3, 2, 1] term [2020-10-19 18:12:48,861 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 18:12:48,862 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:48,882 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:48,884 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-10-19 18:12:48,884 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:40 [2020-10-19 18:12:48,953 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:48,953 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 35 [2020-10-19 18:12:48,954 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:48,961 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:48,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571794555] [2020-10-19 18:12:48,963 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2020-10-19 18:12:48,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1327612469] [2020-10-19 18:12:48,963 INFO L95 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 [2020-10-19 18:12:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:49,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-19 18:12:49,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:49,221 INFO L384 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 [2020-10-19 18:12:49,221 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:49,223 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:49,223 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:49,223 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:12:49,244 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:49,246 INFO L384 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 [2020-10-19 18:12:49,249 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:12:49,251 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:12:49,252 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-19 18:12:49,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736312690] [2020-10-19 18:12:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:12:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:12:49,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-19 18:12:49,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:12:49,382 INFO L384 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 [2020-10-19 18:12:49,383 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:12:49,384 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:49,385 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:12:49,385 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:12:49,422 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:12:49,423 INFO L384 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 [2020-10-19 18:12:49,425 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:12:49,426 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 1) [2020-10-19 18:12:49,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:12:49,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-19 18:12:49,426 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-19 18:12:49,427 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:12:50,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-19 18:12:50,051 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-19 18:12:50,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:12:50 BoogieIcfgContainer [2020-10-19 18:12:50,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:12:50,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:12:50,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:12:50,054 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:12:50,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:12:38" (3/4) ... [2020-10-19 18:12:50,058 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:12:50,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:12:50,063 INFO L168 Benchmark]: Toolchain (without parser) took 13191.89 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 263.7 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -136.8 MB). Peak memory consumption was 126.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:50,064 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:12:50,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 816.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:50,067 INFO L168 Benchmark]: Boogie Preprocessor took 80.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:12:50,071 INFO L168 Benchmark]: RCFGBuilder took 1108.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:50,076 INFO L168 Benchmark]: TraceAbstraction took 11160.72 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 103.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:12:50,080 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:12:50,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 816.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1108.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11160.72 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 103.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -39.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.40 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 1019]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1005] SLL* list = malloc(sizeof(SLL)); [L1006] list->next = ((void*)0) [L1007] list->prev = ((void*)0) [L1008] list->colour = BLACK [L1010] SLL* end = list; [L1013] COND TRUE __VERIFIER_nondet_int() [L1016] end->next = malloc(sizeof(SLL)) [L1017] EXPR end->next [L1017] end->next->prev = end [L1018] EXPR end->next [L1018] end = end->next [L1019] end->next = ((void*)0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 150 locations, 63 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 11.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 691 SDtfs, 1234 SDslu, 908 SDs, 0 SdLazy, 1306 SolverSat, 108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 166 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 285 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 186 ConstructedInterpolants, 5 QuantifiedInterpolants, 8972 SizeOfPredicates, 37 NumberOfNonLiveVariables, 688 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...