./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety/lockfree-3.2.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/memsafety/lockfree-3.2.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 b010fd4a87c087de2df9a8799a5c607ab9a33d5c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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/memsafety/lockfree-3.2.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 b010fd4a87c087de2df9a8799a5c607ab9a33d5c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:00:38,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:00:38,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:00:38,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:00:38,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:00:38,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:00:38,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:00:38,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:00:38,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:00:38,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:00:38,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:00:38,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:00:38,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:00:38,783 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:00:38,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:00:38,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:00:38,786 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:00:38,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:00:38,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:00:38,790 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:00:38,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:00:38,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:00:38,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:00:38,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:00:38,798 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:00:38,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:00:38,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:00:38,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:00:38,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:00:38,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:00:38,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:00:38,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:00:38,802 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:00:38,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:00:38,804 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:00:38,805 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:00:38,805 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:00:38,806 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:00:38,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:00:38,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:00:38,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:00:38,808 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-19 18:00:38,830 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:00:38,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:00:38,832 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:00:38,833 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:00:38,833 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:00:38,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:00:38,833 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:00:38,834 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:00:38,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:00:38,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:00:38,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:00:38,835 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:00:38,835 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:00:38,835 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:00:38,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:00:38,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:00:38,836 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:00:38,836 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:00:38,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:00:38,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:00:38,837 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:00:38,838 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:00:38,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:00:38,838 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:00:38,838 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:00:38,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:00:38,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:00:38,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:00:38,840 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 -> b010fd4a87c087de2df9a8799a5c607ab9a33d5c [2020-10-19 18:00:39,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:00:39,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:00:39,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:00:39,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:00:39,147 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:00:39,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-19 18:00:39,218 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1826faa93/0fd3baccbf5e455299ceda55f2db27d8/FLAG396936858 [2020-10-19 18:00:39,698 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:00:39,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-19 18:00:39,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1826faa93/0fd3baccbf5e455299ceda55f2db27d8/FLAG396936858 [2020-10-19 18:00:39,970 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1826faa93/0fd3baccbf5e455299ceda55f2db27d8 [2020-10-19 18:00:39,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:00:39,980 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:00:39,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:00:39,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:00:39,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:00:39,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:00:39" (1/1) ... [2020-10-19 18:00:39,989 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db40efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:39, skipping insertion in model container [2020-10-19 18:00:39,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:00:39" (1/1) ... [2020-10-19 18:00:39,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:00:40,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:00:40,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:00:40,493 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:00:40,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:00:40,597 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:00:40,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40 WrapperNode [2020-10-19 18:00:40,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:00:40,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:00:40,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:00:40,599 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:00:40,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (1/1) ... [2020-10-19 18:00:40,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (1/1) ... [2020-10-19 18:00:40,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (1/1) ... [2020-10-19 18:00:40,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (1/1) ... [2020-10-19 18:00:40,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (1/1) ... [2020-10-19 18:00:40,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (1/1) ... [2020-10-19 18:00:40,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (1/1) ... [2020-10-19 18:00:40,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:00:40,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:00:40,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:00:40,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:00:40,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (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 18:00:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:00:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:00:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:00:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:00:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:00:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:00:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:00:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:00:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2020-10-19 18:00:40,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2020-10-19 18:00:40,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:00:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:00:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:00:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:00:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:00:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:00:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:00:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:00:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:00:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:00:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:00:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:00:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:00:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:00:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:00:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:00:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:00:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:00:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:00:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:00:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:00:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:00:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:00:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:00:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:00:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:00:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:00:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:00:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:00:40,737 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:00:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:00:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:00:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:00:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:00:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:00:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:00:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:00:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:00:40,739 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:00:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:00:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:00:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:00:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:00:40,740 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:00:40,741 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:00:40,742 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:00:40,743 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:00:40,743 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:00:40,743 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:00:40,743 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:00:40,744 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:00:40,744 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:00:40,744 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:00:40,744 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:00:40,744 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:00:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:00:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:00:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:00:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:00:40,745 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:00:40,746 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:00:40,747 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:00:40,748 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:00:40,749 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:00:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:00:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:00:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:00:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:00:40,750 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:00:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:00:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:00:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:00:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:00:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:00:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:00:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:00:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:00:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:00:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:00:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:00:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:00:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:00:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:00:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:00:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:00:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:00:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:00:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:00:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:00:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:00:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:00:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure push [2020-10-19 18:00:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:00:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:00:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:00:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2020-10-19 18:00:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:00:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:00:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:00:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:00:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:00:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:00:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:00:41,332 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:00:41,333 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-19 18:00:41,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:00:41 BoogieIcfgContainer [2020-10-19 18:00:41,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:00:41,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:00:41,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:00:41,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:00:41,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:00:39" (1/3) ... [2020-10-19 18:00:41,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6961be23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:00:41, skipping insertion in model container [2020-10-19 18:00:41,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:40" (2/3) ... [2020-10-19 18:00:41,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6961be23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:00:41, skipping insertion in model container [2020-10-19 18:00:41,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:00:41" (3/3) ... [2020-10-19 18:00:41,344 INFO L111 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2020-10-19 18:00:41,356 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:00:41,363 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-10-19 18:00:41,377 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-10-19 18:00:41,396 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:00:41,396 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:00:41,396 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:00:41,396 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:00:41,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:00:41,397 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:00:41,397 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:00:41,397 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:00:41,413 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-19 18:00:41,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 18:00:41,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:41,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:41,422 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:41,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:41,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1423840420, now seen corresponding path program 1 times [2020-10-19 18:00:41,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:41,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035757596] [2020-10-19 18:00:41,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:41,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:41,731 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 18:00:41,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035757596] [2020-10-19 18:00:41,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:41,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:00:41,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777360613] [2020-10-19 18:00:41,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:00:41,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:41,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:00:41,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:00:41,754 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-19 18:00:42,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:42,028 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2020-10-19 18:00:42,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:00:42,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-19 18:00:42,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:42,043 INFO L225 Difference]: With dead ends: 92 [2020-10-19 18:00:42,043 INFO L226 Difference]: Without dead ends: 89 [2020-10-19 18:00:42,045 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 18:00:42,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-19 18:00:42,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2020-10-19 18:00:42,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-19 18:00:42,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2020-10-19 18:00:42,097 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 8 [2020-10-19 18:00:42,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:42,097 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2020-10-19 18:00:42,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:00:42,098 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2020-10-19 18:00:42,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:00:42,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:42,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:42,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:00:42,099 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:42,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:42,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1763708013, now seen corresponding path program 1 times [2020-10-19 18:00:42,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:42,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518073662] [2020-10-19 18:00:42,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:42,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:42,232 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 18:00:42,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518073662] [2020-10-19 18:00:42,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:42,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:00:42,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250558913] [2020-10-19 18:00:42,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:00:42,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:42,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:00:42,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:00:42,237 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 4 states. [2020-10-19 18:00:42,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:42,569 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2020-10-19 18:00:42,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:00:42,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-19 18:00:42,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:42,571 INFO L225 Difference]: With dead ends: 91 [2020-10-19 18:00:42,571 INFO L226 Difference]: Without dead ends: 91 [2020-10-19 18:00:42,572 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:00:42,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-19 18:00:42,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2020-10-19 18:00:42,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-19 18:00:42,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2020-10-19 18:00:42,583 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 10 [2020-10-19 18:00:42,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:42,583 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2020-10-19 18:00:42,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:00:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2020-10-19 18:00:42,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-19 18:00:42,584 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:42,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:42,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:00:42,585 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:42,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:42,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1763767595, now seen corresponding path program 1 times [2020-10-19 18:00:42,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:42,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237224674] [2020-10-19 18:00:42,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:42,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:42,721 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 18:00:42,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237224674] [2020-10-19 18:00:42,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:42,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:00:42,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748398521] [2020-10-19 18:00:42,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:00:42,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:42,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:00:42,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:00:42,724 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 4 states. [2020-10-19 18:00:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:43,015 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2020-10-19 18:00:43,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:00:43,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-19 18:00:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:43,018 INFO L225 Difference]: With dead ends: 135 [2020-10-19 18:00:43,018 INFO L226 Difference]: Without dead ends: 135 [2020-10-19 18:00:43,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:00:43,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-19 18:00:43,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 108. [2020-10-19 18:00:43,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-19 18:00:43,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2020-10-19 18:00:43,032 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 10 [2020-10-19 18:00:43,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:43,032 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-10-19 18:00:43,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:00:43,033 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2020-10-19 18:00:43,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:00:43,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:43,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:43,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:00:43,034 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:43,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1157780793, now seen corresponding path program 1 times [2020-10-19 18:00:43,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:43,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144961636] [2020-10-19 18:00:43,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:43,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:43,137 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 18:00:43,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144961636] [2020-10-19 18:00:43,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:43,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:00:43,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339572627] [2020-10-19 18:00:43,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:00:43,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:43,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:00:43,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:00:43,140 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2020-10-19 18:00:43,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:43,374 INFO L93 Difference]: Finished difference Result 149 states and 214 transitions. [2020-10-19 18:00:43,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:00:43,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-19 18:00:43,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:43,377 INFO L225 Difference]: With dead ends: 149 [2020-10-19 18:00:43,377 INFO L226 Difference]: Without dead ends: 144 [2020-10-19 18:00:43,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 18:00:43,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-19 18:00:43,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2020-10-19 18:00:43,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-19 18:00:43,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 183 transitions. [2020-10-19 18:00:43,392 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 183 transitions. Word has length 11 [2020-10-19 18:00:43,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:43,392 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 183 transitions. [2020-10-19 18:00:43,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:00:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 183 transitions. [2020-10-19 18:00:43,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:00:43,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:43,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:43,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:00:43,394 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:43,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:43,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1961333606, now seen corresponding path program 1 times [2020-10-19 18:00:43,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:43,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943889519] [2020-10-19 18:00:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:43,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:43,506 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 18:00:43,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943889519] [2020-10-19 18:00:43,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:43,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:00:43,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518159681] [2020-10-19 18:00:43,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:00:43,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:43,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:00:43,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:00:43,509 INFO L87 Difference]: Start difference. First operand 126 states and 183 transitions. Second operand 4 states. [2020-10-19 18:00:43,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:43,920 INFO L93 Difference]: Finished difference Result 220 states and 325 transitions. [2020-10-19 18:00:43,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:00:43,921 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-19 18:00:43,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:43,923 INFO L225 Difference]: With dead ends: 220 [2020-10-19 18:00:43,924 INFO L226 Difference]: Without dead ends: 220 [2020-10-19 18:00:43,924 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:00:43,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-19 18:00:43,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2020-10-19 18:00:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-19 18:00:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2020-10-19 18:00:43,939 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 13 [2020-10-19 18:00:43,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:43,939 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2020-10-19 18:00:43,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:00:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2020-10-19 18:00:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:00:43,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:43,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:43,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:00:43,941 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:43,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:43,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1961333605, now seen corresponding path program 1 times [2020-10-19 18:00:43,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:43,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884033287] [2020-10-19 18:00:43,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:44,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:44,046 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 18:00:44,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884033287] [2020-10-19 18:00:44,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:44,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:00:44,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136953880] [2020-10-19 18:00:44,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:00:44,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:44,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:00:44,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:00:44,048 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand 4 states. [2020-10-19 18:00:44,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:44,394 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2020-10-19 18:00:44,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:00:44,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-19 18:00:44,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:44,397 INFO L225 Difference]: With dead ends: 271 [2020-10-19 18:00:44,398 INFO L226 Difference]: Without dead ends: 271 [2020-10-19 18:00:44,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:00:44,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-19 18:00:44,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 247. [2020-10-19 18:00:44,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-19 18:00:44,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2020-10-19 18:00:44,417 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 13 [2020-10-19 18:00:44,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:44,417 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2020-10-19 18:00:44,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:00:44,418 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2020-10-19 18:00:44,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-19 18:00:44,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:44,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:44,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 18:00:44,422 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:44,422 INFO L82 PathProgramCache]: Analyzing trace with hash -671792639, now seen corresponding path program 1 times [2020-10-19 18:00:44,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:44,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040521361] [2020-10-19 18:00:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:44,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:44,565 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 18:00:44,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040521361] [2020-10-19 18:00:44,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:44,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:00:44,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858370874] [2020-10-19 18:00:44,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:00:44,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:44,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:00:44,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:00:44,568 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand 6 states. [2020-10-19 18:00:44,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:44,862 INFO L93 Difference]: Finished difference Result 473 states and 709 transitions. [2020-10-19 18:00:44,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 18:00:44,863 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-19 18:00:44,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:44,868 INFO L225 Difference]: With dead ends: 473 [2020-10-19 18:00:44,869 INFO L226 Difference]: Without dead ends: 473 [2020-10-19 18:00:44,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:00:44,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-19 18:00:44,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2020-10-19 18:00:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-10-19 18:00:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 675 transitions. [2020-10-19 18:00:44,900 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 675 transitions. Word has length 14 [2020-10-19 18:00:44,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:44,901 INFO L481 AbstractCegarLoop]: Abstraction has 439 states and 675 transitions. [2020-10-19 18:00:44,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:00:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 675 transitions. [2020-10-19 18:00:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:00:44,902 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:44,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:44,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 18:00:44,903 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:44,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:44,903 INFO L82 PathProgramCache]: Analyzing trace with hash -880304331, now seen corresponding path program 1 times [2020-10-19 18:00:44,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:44,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873413779] [2020-10-19 18:00:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:44,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:45,005 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 18:00:45,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873413779] [2020-10-19 18:00:45,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:45,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:00:45,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806471482] [2020-10-19 18:00:45,007 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:00:45,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:45,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:00:45,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:00:45,008 INFO L87 Difference]: Start difference. First operand 439 states and 675 transitions. Second operand 5 states. [2020-10-19 18:00:45,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:45,277 INFO L93 Difference]: Finished difference Result 765 states and 1122 transitions. [2020-10-19 18:00:45,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:00:45,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-19 18:00:45,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:45,283 INFO L225 Difference]: With dead ends: 765 [2020-10-19 18:00:45,283 INFO L226 Difference]: Without dead ends: 765 [2020-10-19 18:00:45,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:00:45,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-19 18:00:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 739. [2020-10-19 18:00:45,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-19 18:00:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1095 transitions. [2020-10-19 18:00:45,319 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1095 transitions. Word has length 15 [2020-10-19 18:00:45,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:45,319 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 1095 transitions. [2020-10-19 18:00:45,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:00:45,320 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1095 transitions. [2020-10-19 18:00:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 18:00:45,324 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:45,324 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:45,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 18:00:45,328 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:45,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:45,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1060051524, now seen corresponding path program 1 times [2020-10-19 18:00:45,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:45,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521882162] [2020-10-19 18:00:45,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:45,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:00:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:45,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-19 18:00:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:00:45,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521882162] [2020-10-19 18:00:45,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693913462] [2020-10-19 18:00:45,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:00:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:45,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-19 18:00:45,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:45,807 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 18:00:45,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:00:45,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 18:00:45,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2020-10-19 18:00:45,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000935828] [2020-10-19 18:00:45,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-19 18:00:45,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:00:45,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-19 18:00:45,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-19 18:00:45,814 INFO L87 Difference]: Start difference. First operand 739 states and 1095 transitions. Second operand 12 states. [2020-10-19 18:00:46,183 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-19 18:00:47,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:47,776 INFO L93 Difference]: Finished difference Result 2291 states and 3424 transitions. [2020-10-19 18:00:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-19 18:00:47,782 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-19 18:00:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:47,796 INFO L225 Difference]: With dead ends: 2291 [2020-10-19 18:00:47,796 INFO L226 Difference]: Without dead ends: 2291 [2020-10-19 18:00:47,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2020-10-19 18:00:47,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2020-10-19 18:00:47,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2147. [2020-10-19 18:00:47,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2147 states. [2020-10-19 18:00:47,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 3195 transitions. [2020-10-19 18:00:47,890 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 3195 transitions. Word has length 22 [2020-10-19 18:00:47,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:47,891 INFO L481 AbstractCegarLoop]: Abstraction has 2147 states and 3195 transitions. [2020-10-19 18:00:47,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-19 18:00:47,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 3195 transitions. [2020-10-19 18:00:47,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 18:00:47,892 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:47,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:48,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-19 18:00:48,106 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:48,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:48,107 INFO L82 PathProgramCache]: Analyzing trace with hash 38983170, now seen corresponding path program 1 times [2020-10-19 18:00:48,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:00:48,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331476525] [2020-10-19 18:00:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:00:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:00:48,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:00:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:00:48,159 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:00:48,197 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:00:48,198 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:00:48,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 18:00:48,252 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:00:48,277 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-19 18:00:48,278 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-19 18:00:48,284 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-19 18:00:48,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:00:48 BoogieIcfgContainer [2020-10-19 18:00:48,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:00:48,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:00:48,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:00:48,306 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:00:48,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:00:41" (3/4) ... [2020-10-19 18:00:48,310 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:00:48,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:00:48,313 INFO L168 Benchmark]: Toolchain (without parser) took 8337.57 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 317.2 MB). Free memory was 951.9 MB in the beginning and 860.9 MB in the end (delta: 91.0 MB). Peak memory consumption was 408.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:48,313 INFO L168 Benchmark]: CDTParser took 0.26 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 18:00:48,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:48,317 INFO L168 Benchmark]: Boogie Preprocessor took 68.01 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:48,320 INFO L168 Benchmark]: RCFGBuilder took 667.75 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:48,321 INFO L168 Benchmark]: TraceAbstraction took 6969.03 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 171.4 MB). Free memory was 1.1 GB in the beginning and 860.9 MB in the end (delta: 202.4 MB). Peak memory consumption was 373.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:48,322 INFO L168 Benchmark]: Witness Printer took 5.14 ms. Allocated memory is still 1.3 GB. Free memory is still 860.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:00:48,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 617.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -170.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.01 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: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 667.75 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: 56.9 MB). Peak memory consumption was 56.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6969.03 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 171.4 MB). Free memory was 1.1 GB in the beginning and 860.9 MB in the end (delta: 202.4 MB). Peak memory consumption was 373.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.14 ms. Allocated memory is still 1.3 GB. Free memory is still 860.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 592]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 592. Possible FailurePath: [L528] struct cell *S; [L529] int pc1 = 1; [L530] int pc4 = 1; [L531] static struct cell *t1 = ((void *)0); [L532] static struct cell *x1 = ((void *)0); [L561] struct cell* garbage; [L562] static struct cell *t4 = ((void *)0); [L563] static struct cell *x4 = ((void *)0); [L566] static int res4; VAL [\old(garbage)=60, \old(garbage)=66, \old(pc1)=53, \old(pc4)=67, \old(res4)=54, \old(S)=50, \old(S)=55, \old(t1)=61, \old(t1)=72, \old(t4)=58, \old(t4)=52, \old(x1)=68, \old(x1)=62, \old(x4)=70, \old(x4)=71, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L594] S || 1 != pc4 || __VERIFIER_nondet_int() [L594] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, __VERIFIER_nondet_int()=1, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, S || 1 != pc4 || __VERIFIER_nondet_int()=1, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L594] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L595] COND TRUE __VERIFIER_nondet_int() [L596] CALL push() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L535] pc1++ [L536] case 1: [L537] x1 = malloc(sizeof(*x1)) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L538] x1->data = 0 VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L539] x1->next = ((void *)0) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, malloc(sizeof(*x1))={-1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L596] RET push() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L594] S || 1 != pc4 || __VERIFIER_nondet_int() [L594] S || 1 != pc4 || __VERIFIER_nondet_int() VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, __VERIFIER_nondet_int()=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, S || 1 != pc4 || __VERIFIER_nondet_int()=0, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L594] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L600] COND FALSE !(\read(*garbage)) VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={-1:0}, x4={0:0}] [L605] S = ((void *)0) [L606] t1 = ((void *)0) [L607] x1 = ((void *)0) [L608] t4 = ((void *)0) [L609] x4 = ((void *)0) [L610] return !!garbage; VAL [\old(garbage)=0, \old(garbage)=0, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=0, \old(S)=0, \old(t1)=0, \old(t1)=0, \old(t4)=0, \old(t4)=0, \old(x1)=0, \old(x1)=0, \old(x4)=0, \old(x4)=0, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 94 locations, 21 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.8s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 844 SDtfs, 874 SDslu, 1056 SDs, 0 SdLazy, 1860 SolverSat, 231 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2147occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 337 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 13630 SizeOfPredicates, 8 NumberOfNonLiveVariables, 329 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 2/6 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 18:00:50,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:00:50,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:00:50,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:00:50,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:00:50,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:00:50,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:00:50,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:00:50,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:00:50,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:00:50,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:00:50,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:00:50,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:00:50,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:00:50,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:00:50,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:00:50,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:00:50,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:00:50,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:00:50,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:00:50,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:00:50,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:00:50,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:00:50,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:00:50,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:00:50,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:00:50,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:00:50,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:00:50,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:00:50,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:00:50,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:00:50,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:00:50,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:00:50,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:00:50,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:00:50,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:00:50,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:00:50,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:00:50,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:00:50,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:00:50,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:00:50,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-19 18:00:50,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:00:50,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:00:50,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:00:50,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:00:50,317 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:00:50,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:00:50,318 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:00:50,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:00:50,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:00:50,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:00:50,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:00:50,320 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:00:50,320 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:00:50,321 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-19 18:00:50,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:00:50,321 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:00:50,322 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 18:00:50,323 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 18:00:50,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:00:50,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:00:50,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:00:50,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:00:50,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:00:50,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:00:50,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:00:50,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:00:50,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:00:50,326 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 18:00:50,326 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 18:00:50,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:00:50,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 18:00:50,327 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 -> b010fd4a87c087de2df9a8799a5c607ab9a33d5c [2020-10-19 18:00:50,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:00:50,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:00:50,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:00:50,679 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:00:50,681 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:00:50,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-19 18:00:50,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2168d6ee6/023f577080b84aa2aef33be1cd2df96c/FLAGb06fee46c [2020-10-19 18:00:51,240 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:00:51,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-19 18:00:51,254 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2168d6ee6/023f577080b84aa2aef33be1cd2df96c/FLAGb06fee46c [2020-10-19 18:00:51,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2168d6ee6/023f577080b84aa2aef33be1cd2df96c [2020-10-19 18:00:51,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:00:51,509 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:00:51,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:00:51,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:00:51,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:00:51,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:00:51" (1/1) ... [2020-10-19 18:00:51,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3288ce68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:51, skipping insertion in model container [2020-10-19 18:00:51,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:00:51" (1/1) ... [2020-10-19 18:00:51,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:00:51,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:00:51,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:00:51,997 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:00:52,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:00:52,132 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:00:52,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52 WrapperNode [2020-10-19 18:00:52,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:00:52,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:00:52,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:00:52,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:00:52,149 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (1/1) ... [2020-10-19 18:00:52,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (1/1) ... [2020-10-19 18:00:52,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (1/1) ... [2020-10-19 18:00:52,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (1/1) ... [2020-10-19 18:00:52,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (1/1) ... [2020-10-19 18:00:52,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (1/1) ... [2020-10-19 18:00:52,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (1/1) ... [2020-10-19 18:00:52,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:00:52,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:00:52,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:00:52,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:00:52,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (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 18:00:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:00:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:00:52,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:00:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:00:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-19 18:00:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-19 18:00:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-19 18:00:52,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-19 18:00:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-19 18:00:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2020-10-19 18:00:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2020-10-19 18:00:52,282 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:00:52,282 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:00:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:00:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:00:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:00:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:00:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:00:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:00:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:00:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:00:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:00:52,285 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:00:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:00:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:00:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:00:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:00:52,286 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:00:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:00:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-19 18:00:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-19 18:00:52,287 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:00:52,288 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:00:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:00:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:00:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:00:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:00:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:00:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:00:52,289 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:00:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:00:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:00:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:00:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:00:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:00:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:00:52,290 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:00:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:00:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:00:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:00:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:00:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:00:52,291 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:00:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:00:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:00:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:00:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:00:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:00:52,292 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:00:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:00:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:00:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:00:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:00:52,293 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:00:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:00:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:00:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:00:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:00:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:00:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:00:52,294 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:00:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:00:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:00:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:00:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:00:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:00:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:00:52,295 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:00:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:00:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:00:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:00:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:00:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:00:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:00:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:00:52,296 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:00:52,297 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:00:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:00:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:00:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:00:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:00:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:00:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:00:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:00:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:00:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:00:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:00:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:00:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:00:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:00:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:00:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:00:52,300 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:00:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:00:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure push [2020-10-19 18:00:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:00:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-19 18:00:52,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:00:52,302 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2020-10-19 18:00:52,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:00:52,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-19 18:00:52,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:00:52,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:00:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:00:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-19 18:00:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:00:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-19 18:00:52,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-19 18:00:52,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-19 18:00:52,974 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:00:52,974 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-19 18:00:52,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:00:52 BoogieIcfgContainer [2020-10-19 18:00:52,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:00:52,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:00:52,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:00:52,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:00:52,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:00:51" (1/3) ... [2020-10-19 18:00:52,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a060a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:00:52, skipping insertion in model container [2020-10-19 18:00:52,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:00:52" (2/3) ... [2020-10-19 18:00:52,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a060a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:00:52, skipping insertion in model container [2020-10-19 18:00:52,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:00:52" (3/3) ... [2020-10-19 18:00:52,986 INFO L111 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2020-10-19 18:00:52,999 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:00:53,007 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-10-19 18:00:53,023 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-10-19 18:00:53,049 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:00:53,050 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:00:53,050 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:00:53,050 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:00:53,051 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:00:53,051 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:00:53,051 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:00:53,051 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:00:53,084 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-19 18:00:53,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 18:00:53,109 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:53,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:53,111 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:53,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:53,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1937878524, now seen corresponding path program 1 times [2020-10-19 18:00:53,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:53,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512958186] [2020-10-19 18:00:53,159 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 18:00:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:53,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-19 18:00:53,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:53,393 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 18:00:53,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:00:53,413 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 18:00:53,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512958186] [2020-10-19 18:00:53,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:53,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:00:53,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852575685] [2020-10-19 18:00:53,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-19 18:00:53,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:00:53,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-19 18:00:53,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:00:53,439 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2020-10-19 18:00:53,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:53,460 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-10-19 18:00:53,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-19 18:00:53,462 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-19 18:00:53,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:53,476 INFO L225 Difference]: With dead ends: 72 [2020-10-19 18:00:53,476 INFO L226 Difference]: Without dead ends: 69 [2020-10-19 18:00:53,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-19 18:00:53,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-19 18:00:53,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-19 18:00:53,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-19 18:00:53,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2020-10-19 18:00:53,523 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 8 [2020-10-19 18:00:53,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:53,524 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2020-10-19 18:00:53,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-19 18:00:53,524 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2020-10-19 18:00:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-19 18:00:53,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:53,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:53,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 18:00:53,738 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:53,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:53,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1937866992, now seen corresponding path program 1 times [2020-10-19 18:00:53,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:53,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145279724] [2020-10-19 18:00:53,741 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 18:00:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:53,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-19 18:00:53,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:53,916 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 18:00:53,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:00:53,953 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 18:00:53,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145279724] [2020-10-19 18:00:53,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:53,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 18:00:53,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198696852] [2020-10-19 18:00:53,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:00:53,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:00:53,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:00:53,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:00:53,957 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand 3 states. [2020-10-19 18:00:54,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:54,025 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2020-10-19 18:00:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:00:54,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-19 18:00:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:54,029 INFO L225 Difference]: With dead ends: 120 [2020-10-19 18:00:54,029 INFO L226 Difference]: Without dead ends: 120 [2020-10-19 18:00:54,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 18:00:54,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-19 18:00:54,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2020-10-19 18:00:54,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-19 18:00:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2020-10-19 18:00:54,049 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 8 [2020-10-19 18:00:54,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:54,049 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2020-10-19 18:00:54,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:00:54,050 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2020-10-19 18:00:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-19 18:00:54,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:54,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:54,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 18:00:54,264 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:54,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:54,265 INFO L82 PathProgramCache]: Analyzing trace with hash -55666767, now seen corresponding path program 1 times [2020-10-19 18:00:54,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:54,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [64863029] [2020-10-19 18:00:54,267 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 18:00:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:54,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:00:54,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:54,441 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 18:00:54,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:00:54,450 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 18:00:54,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [64863029] [2020-10-19 18:00:54,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:54,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:00:54,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787039453] [2020-10-19 18:00:54,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:00:54,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:00:54,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:00:54,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:00:54,453 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand 3 states. [2020-10-19 18:00:54,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:54,598 INFO L93 Difference]: Finished difference Result 128 states and 182 transitions. [2020-10-19 18:00:54,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:00:54,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-19 18:00:54,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:54,602 INFO L225 Difference]: With dead ends: 128 [2020-10-19 18:00:54,602 INFO L226 Difference]: Without dead ends: 125 [2020-10-19 18:00:54,602 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 18:00:54,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-19 18:00:54,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2020-10-19 18:00:54,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-19 18:00:54,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2020-10-19 18:00:54,618 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 9 [2020-10-19 18:00:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:54,619 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2020-10-19 18:00:54,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:00:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2020-10-19 18:00:54,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:00:54,620 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:54,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:54,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 18:00:54,843 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:54,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:54,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1911661939, now seen corresponding path program 1 times [2020-10-19 18:00:54,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:54,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742465209] [2020-10-19 18:00:54,845 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 18:00:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:54,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 18:00:54,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:55,026 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 18:00:55,027 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:00:55,034 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:00:55,034 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:00:55,035 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-19 18:00:55,040 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 18:00:55,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:00:55,056 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 18:00:55,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742465209] [2020-10-19 18:00:55,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:55,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-19 18:00:55,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12545895] [2020-10-19 18:00:55,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 18:00:55,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:00:55,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 18:00:55,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 18:00:55,059 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2020-10-19 18:00:55,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:55,223 INFO L93 Difference]: Finished difference Result 198 states and 290 transitions. [2020-10-19 18:00:55,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 18:00:55,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-19 18:00:55,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:55,227 INFO L225 Difference]: With dead ends: 198 [2020-10-19 18:00:55,228 INFO L226 Difference]: Without dead ends: 198 [2020-10-19 18:00:55,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 18:00:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-19 18:00:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 177. [2020-10-19 18:00:55,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-19 18:00:55,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 276 transitions. [2020-10-19 18:00:55,247 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 276 transitions. Word has length 11 [2020-10-19 18:00:55,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:55,248 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 276 transitions. [2020-10-19 18:00:55,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 18:00:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 276 transitions. [2020-10-19 18:00:55,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-19 18:00:55,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:55,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:55,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 18:00:55,463 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:55,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:55,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1911661938, now seen corresponding path program 1 times [2020-10-19 18:00:55,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:55,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373888633] [2020-10-19 18:00:55,464 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 18:00:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:55,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-19 18:00:55,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:55,644 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 18:00:55,644 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-19 18:00:55,653 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-19 18:00:55,653 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-19 18:00:55,653 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-19 18:00:55,668 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 18:00:55,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:00:55,721 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 18:00:55,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373888633] [2020-10-19 18:00:55,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:55,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-19 18:00:55,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939481257] [2020-10-19 18:00:55,723 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:00:55,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:00:55,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:00:55,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:00:55,727 INFO L87 Difference]: Start difference. First operand 177 states and 276 transitions. Second operand 4 states. [2020-10-19 18:00:56,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:56,064 INFO L93 Difference]: Finished difference Result 333 states and 499 transitions. [2020-10-19 18:00:56,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:00:56,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-19 18:00:56,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:56,069 INFO L225 Difference]: With dead ends: 333 [2020-10-19 18:00:56,069 INFO L226 Difference]: Without dead ends: 333 [2020-10-19 18:00:56,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 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 18:00:56,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-10-19 18:00:56,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 295. [2020-10-19 18:00:56,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-19 18:00:56,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 472 transitions. [2020-10-19 18:00:56,094 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 472 transitions. Word has length 11 [2020-10-19 18:00:56,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:56,094 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 472 transitions. [2020-10-19 18:00:56,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:00:56,095 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 472 transitions. [2020-10-19 18:00:56,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-19 18:00:56,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:56,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:56,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 18:00:56,308 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:56,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:56,309 INFO L82 PathProgramCache]: Analyzing trace with hash 868029060, now seen corresponding path program 1 times [2020-10-19 18:00:56,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:56,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315626993] [2020-10-19 18:00:56,310 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 18:00:56,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:56,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:00:56,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:56,465 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 18:00:56,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:00:56,478 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 18:00:56,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315626993] [2020-10-19 18:00:56,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:56,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 18:00:56,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693835442] [2020-10-19 18:00:56,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:00:56,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:00:56,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:00:56,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:00:56,481 INFO L87 Difference]: Start difference. First operand 295 states and 472 transitions. Second operand 4 states. [2020-10-19 18:00:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:56,521 INFO L93 Difference]: Finished difference Result 212 states and 298 transitions. [2020-10-19 18:00:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:00:56,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-19 18:00:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:56,524 INFO L225 Difference]: With dead ends: 212 [2020-10-19 18:00:56,524 INFO L226 Difference]: Without dead ends: 212 [2020-10-19 18:00:56,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 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 18:00:56,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-19 18:00:56,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2020-10-19 18:00:56,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-19 18:00:56,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 271 transitions. [2020-10-19 18:00:56,539 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 271 transitions. Word has length 12 [2020-10-19 18:00:56,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:56,539 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 271 transitions. [2020-10-19 18:00:56,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:00:56,540 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 271 transitions. [2020-10-19 18:00:56,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:00:56,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:56,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:00:56,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 18:00:56,762 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:56,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:56,763 INFO L82 PathProgramCache]: Analyzing trace with hash -390471896, now seen corresponding path program 1 times [2020-10-19 18:00:56,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:56,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345301018] [2020-10-19 18:00:56,763 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 18:00:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:00:56,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:00:56,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:00:56,903 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 18:00:56,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 18:00:56,915 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 18:00:56,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345301018] [2020-10-19 18:00:56,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:00:56,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-19 18:00:56,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919301842] [2020-10-19 18:00:56,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:00:56,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 18:00:56,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:00:56,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:00:56,917 INFO L87 Difference]: Start difference. First operand 181 states and 271 transitions. Second operand 4 states. [2020-10-19 18:00:56,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:00:56,963 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2020-10-19 18:00:56,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:00:56,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-19 18:00:56,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:00:56,966 INFO L225 Difference]: With dead ends: 281 [2020-10-19 18:00:56,967 INFO L226 Difference]: Without dead ends: 281 [2020-10-19 18:00:56,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 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 18:00:56,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-19 18:00:56,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-19 18:00:56,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-19 18:00:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 404 transitions. [2020-10-19 18:00:56,986 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 404 transitions. Word has length 13 [2020-10-19 18:00:56,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:00:56,986 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 404 transitions. [2020-10-19 18:00:56,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:00:56,987 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 404 transitions. [2020-10-19 18:00:56,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-19 18:00:56,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:00:56,988 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 18:00:57,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 18:00:57,209 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-10-19 18:00:57,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:00:57,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1606966587, now seen corresponding path program 1 times [2020-10-19 18:00:57,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 18:00:57,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300176840] [2020-10-19 18:00:57,211 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 18:00:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:00:57,355 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:00:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:00:57,413 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:00:57,471 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-19 18:00:57,471 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:00:57,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 18:00:57,709 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-19 18:00:57,723 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,724 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,726 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 22bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,727 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 14bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,727 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,727 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 28bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,728 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 24bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,728 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,728 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,728 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,729 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 21bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,729 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 27bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,731 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,731 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,731 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,731 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,732 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,732 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,732 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,732 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,733 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,733 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,733 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,733 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,734 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,735 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,735 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,735 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,735 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,736 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,736 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,736 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,736 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,737 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,737 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,737 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,737 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-19 18:00:57,738 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,738 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,738 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,739 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,739 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,739 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,739 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,740 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,740 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,740 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,740 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,740 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,741 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-19 18:00:57,741 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,742 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,742 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,742 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,742 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,742 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,743 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,743 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,743 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,743 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,743 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2020-10-19 18:00:57,744 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,744 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,744 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,745 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,745 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,745 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,745 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,746 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,746 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,746 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,746 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,747 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,747 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,747 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,748 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,748 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,748 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,748 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,748 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,749 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,749 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,749 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,749 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,749 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,750 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,750 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,751 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,751 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,751 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,751 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,752 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,752 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,752 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,752 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,753 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,753 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,753 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,753 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-19 18:00:57,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:00:57 BoogieIcfgContainer [2020-10-19 18:00:57,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:00:57,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:00:57,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:00:57,762 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:00:57,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:00:52" (3/4) ... [2020-10-19 18:00:57,767 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:00:57,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:00:57,769 INFO L168 Benchmark]: Toolchain (without parser) took 6267.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.6 MB). Free memory was 954.6 MB in the beginning and 999.3 MB in the end (delta: -44.7 MB). Peak memory consumption was 173.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:57,769 INFO L168 Benchmark]: CDTParser took 0.25 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 18:00:57,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:57,770 INFO L168 Benchmark]: Boogie Preprocessor took 88.32 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 18:00:57,771 INFO L168 Benchmark]: RCFGBuilder took 754.78 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: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:57,772 INFO L168 Benchmark]: TraceAbstraction took 4783.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 999.3 MB in the end (delta: 53.1 MB). Peak memory consumption was 123.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:00:57,772 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 1.2 GB. Free memory is still 999.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:00:57,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 621.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.32 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 754.78 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: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4783.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 999.3 MB in the end (delta: 53.1 MB). Peak memory consumption was 123.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.76 ms. Allocated memory is still 1.2 GB. Free memory is still 999.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 22bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 14bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 28bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 24bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 21bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 27bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 592]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 592. Possible FailurePath: [L528] struct cell *S; [L529] int pc1 = 1; [L530] int pc4 = 1; [L531] static struct cell *t1 = ((void *)0); [L532] static struct cell *x1 = ((void *)0); [L561] struct cell* garbage; [L562] static struct cell *t4 = ((void *)0); [L563] static struct cell *x4 = ((void *)0); [L566] static int res4; VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=16, \old(pc4)=26, \old(res4)=20, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L594] COND TRUE S || 1 != pc4 || __VERIFIER_nondet_int() [L595] COND TRUE __VERIFIER_nondet_int() [L596] CALL push() VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] [L535] pc1++ [L536] case 1: [L537] x1 = malloc(sizeof(*x1)) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L538] x1->data = 0 VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L539] x1->next = ((void *)0) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, malloc(sizeof(*x1))={1:0}, pc1=2, pc1++=1, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L596] RET push() VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L594] COND FALSE !(S || 1 != pc4 || __VERIFIER_nondet_int()) [L600] COND FALSE !(\read(*garbage)) VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={1:0}, x4={0:0}] [L605] S = ((void *)0) [L606] t1 = ((void *)0) [L607] x1 = ((void *)0) [L608] t4 = ((void *)0) [L609] x4 = ((void *)0) [L610] return !!garbage; VAL [\old(garbage)=null, \old(garbage)=null, \old(pc1)=1, \old(pc4)=1, \old(res4)=0, \old(S)=null, \old(S)=null, \old(t1)=null, \old(t1)=null, \old(t4)=null, \old(t4)=null, \old(x1)=null, \old(x1)=null, \old(x4)=null, \old(x4)=null, \result=0, garbage={0:0}, pc1=2, pc4=1, res4=0, S={0:0}, t1={0:0}, t4={0:0}, x1={0:0}, x4={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 98 locations, 21 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 668 SDtfs, 455 SDslu, 553 SDs, 0 SdLazy, 180 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=5, 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, 7 MinimizatonAttempts, 118 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 2786 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1054 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...