./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 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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 -Xmx15G -Xms4m -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 0.1.25-9a8b2e8 [2020-10-20 05:53:29,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:53:29,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:53:29,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:53:29,457 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:53:29,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:53:29,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:53:29,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:53:29,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:53:29,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:53:29,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:53:29,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:53:29,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:53:29,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:53:29,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:53:29,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:53:29,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:53:29,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:53:29,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:53:29,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:53:29,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:53:29,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:53:29,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:53:29,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:53:29,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:53:29,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:53:29,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:53:29,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:53:29,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:53:29,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:53:29,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:53:29,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:53:29,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:53:29,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:53:29,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:53:29,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:53:29,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:53:29,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:53:29,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:53:29,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:53:29,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:53:29,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 05:53:29,529 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:53:29,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:53:29,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:53:29,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:53:29,531 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:53:29,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:53:29,532 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:53:29,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:53:29,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:53:29,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:53:29,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:53:29,533 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:53:29,533 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:53:29,533 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:53:29,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:53:29,534 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:53:29,534 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:53:29,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:53:29,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:53:29,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:53:29,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:53:29,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:53:29,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:53:29,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:53:29,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:53:29,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 05:53:29,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 05:53:29,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:53:29,537 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 [2020-10-20 05:53:29,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:53:29,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:53:29,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:53:29,827 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:53:29,828 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:53:29,830 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-20 05:53:29,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd08ac4e/6fd360b549844cfeb9718e2289901caa/FLAGb47b03456 [2020-10-20 05:53:30,528 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:53:30,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-20 05:53:30,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd08ac4e/6fd360b549844cfeb9718e2289901caa/FLAGb47b03456 [2020-10-20 05:53:30,753 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cd08ac4e/6fd360b549844cfeb9718e2289901caa [2020-10-20 05:53:30,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:53:30,762 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:53:30,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:53:30,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:53:30,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:53:30,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:53:30" (1/1) ... [2020-10-20 05:53:30,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ead261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:30, skipping insertion in model container [2020-10-20 05:53:30,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:53:30" (1/1) ... [2020-10-20 05:53:30,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:53:30,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:53:31,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:53:31,249 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:53:31,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:53:31,389 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:53:31,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31 WrapperNode [2020-10-20 05:53:31,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:53:31,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:53:31,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:53:31,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:53:31,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (1/1) ... [2020-10-20 05:53:31,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (1/1) ... [2020-10-20 05:53:31,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (1/1) ... [2020-10-20 05:53:31,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (1/1) ... [2020-10-20 05:53:31,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (1/1) ... [2020-10-20 05:53:31,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (1/1) ... [2020-10-20 05:53:31,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (1/1) ... [2020-10-20 05:53:31,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:53:31,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:53:31,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:53:31,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:53:31,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (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 [2020-10-20 05:53:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:53:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:53:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 05:53:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:53:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:53:31,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:53:31,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:53:31,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:53:31,534 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2020-10-20 05:53:31,535 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2020-10-20 05:53:31,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:53:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:53:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 05:53:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 05:53:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 05:53:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 05:53:31,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:53:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:53:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:53:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:53:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:53:31,537 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:53:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:53:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:53:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:53:31,538 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:53:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:53:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:53:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:53:31,539 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:53:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:53:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:53:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:53:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:53:31,540 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:53:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:53:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:53:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:53:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:53:31,541 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:53:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:53:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:53:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:53:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:53:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:53:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:53:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:53:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:53:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:53:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:53:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:53:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:53:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:53:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:53:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:53:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:53:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:53:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:53:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:53:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:53:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:53:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:53:31,546 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:53:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:53:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:53:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:53:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:53:31,547 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:53:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:53:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:53:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:53:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:53:31,548 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:53:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:53:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:53:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:53:31,549 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:53:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:53:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:53:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:53:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:53:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:53:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:53:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:53:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:53:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:53:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:53:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:53:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:53:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:53:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:53:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:53:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:53:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:53:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:53:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:53:31,553 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:53:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:53:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:53:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:53:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:53:31,554 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:53:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:53:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:53:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:53:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:53:31,555 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:53:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:53:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:53:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:53:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:53:31,556 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:53:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:53:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:53:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:53:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:53:31,557 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:53:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:53:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:53:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:53:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:53:31,558 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:53:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:53:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:53:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure push [2020-10-20 05:53:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:53:31,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 05:53:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:53:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2020-10-20 05:53:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:53:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 05:53:31,560 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:53:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:53:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:53:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 05:53:31,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:53:32,260 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:53:32,260 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-20 05:53:32,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:32 BoogieIcfgContainer [2020-10-20 05:53:32,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:53:32,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:53:32,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:53:32,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:53:32,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:53:30" (1/3) ... [2020-10-20 05:53:32,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37986b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:53:32, skipping insertion in model container [2020-10-20 05:53:32,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:31" (2/3) ... [2020-10-20 05:53:32,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37986b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:53:32, skipping insertion in model container [2020-10-20 05:53:32,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:32" (3/3) ... [2020-10-20 05:53:32,272 INFO L111 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2020-10-20 05:53:32,284 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:53:32,292 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-10-20 05:53:32,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-10-20 05:53:32,328 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:53:32,328 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:53:32,328 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:53:32,329 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:53:32,329 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:53:32,329 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:53:32,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:53:32,330 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:53:32,348 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-20 05:53:32,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 05:53:32,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:32,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:32,360 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]=== [2020-10-20 05:53:32,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:32,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1423840420, now seen corresponding path program 1 times [2020-10-20 05:53:32,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:32,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594143311] [2020-10-20 05:53:32,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:32,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:32,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594143311] [2020-10-20 05:53:32,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:32,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:53:32,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076821621] [2020-10-20 05:53:32,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:53:32,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:32,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:53:32,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:53:32,711 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-20 05:53:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:33,048 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2020-10-20 05:53:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:53:33,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 05:53:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:33,063 INFO L225 Difference]: With dead ends: 92 [2020-10-20 05:53:33,064 INFO L226 Difference]: Without dead ends: 89 [2020-10-20 05:53:33,066 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 [2020-10-20 05:53:33,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-20 05:53:33,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2020-10-20 05:53:33,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-20 05:53:33,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2020-10-20 05:53:33,121 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 8 [2020-10-20 05:53:33,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:33,122 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2020-10-20 05:53:33,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:53:33,122 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2020-10-20 05:53:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:53:33,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:33,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:33,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 05:53:33,125 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]=== [2020-10-20 05:53:33,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:33,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1763708013, now seen corresponding path program 1 times [2020-10-20 05:53:33,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:33,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237445469] [2020-10-20 05:53:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:33,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:33,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:33,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:33,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237445469] [2020-10-20 05:53:33,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:33,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 05:53:33,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382414378] [2020-10-20 05:53:33,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:53:33,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:33,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:53:33,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:53:33,368 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 4 states. [2020-10-20 05:53:33,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:33,685 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2020-10-20 05:53:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:53:33,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 05:53:33,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:33,687 INFO L225 Difference]: With dead ends: 91 [2020-10-20 05:53:33,687 INFO L226 Difference]: Without dead ends: 91 [2020-10-20 05:53:33,688 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 [2020-10-20 05:53:33,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-20 05:53:33,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2020-10-20 05:53:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-20 05:53:33,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2020-10-20 05:53:33,702 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 10 [2020-10-20 05:53:33,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:33,702 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2020-10-20 05:53:33,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:53:33,703 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2020-10-20 05:53:33,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 05:53:33,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:33,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:33,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 05:53:33,704 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]=== [2020-10-20 05:53:33,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1763767595, now seen corresponding path program 1 times [2020-10-20 05:53:33,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:33,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314958149] [2020-10-20 05:53:33,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:33,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:33,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:33,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314958149] [2020-10-20 05:53:33,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:33,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:53:33,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069578742] [2020-10-20 05:53:33,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:53:33,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:33,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:53:33,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:53:33,949 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 4 states. [2020-10-20 05:53:34,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:34,283 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2020-10-20 05:53:34,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:53:34,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 05:53:34,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:34,286 INFO L225 Difference]: With dead ends: 135 [2020-10-20 05:53:34,286 INFO L226 Difference]: Without dead ends: 135 [2020-10-20 05:53:34,287 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 [2020-10-20 05:53:34,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-20 05:53:34,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 108. [2020-10-20 05:53:34,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-20 05:53:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2020-10-20 05:53:34,299 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 10 [2020-10-20 05:53:34,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:34,300 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-10-20 05:53:34,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:53:34,300 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2020-10-20 05:53:34,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:53:34,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:34,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:34,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 05:53:34,301 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]=== [2020-10-20 05:53:34,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:34,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1157780793, now seen corresponding path program 1 times [2020-10-20 05:53:34,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:34,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630766770] [2020-10-20 05:53:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:34,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:34,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630766770] [2020-10-20 05:53:34,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:34,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:53:34,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614777436] [2020-10-20 05:53:34,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:53:34,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:34,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:53:34,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:53:34,427 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2020-10-20 05:53:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:34,657 INFO L93 Difference]: Finished difference Result 149 states and 214 transitions. [2020-10-20 05:53:34,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:53:34,660 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 05:53:34,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:34,664 INFO L225 Difference]: With dead ends: 149 [2020-10-20 05:53:34,664 INFO L226 Difference]: Without dead ends: 144 [2020-10-20 05:53:34,665 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 [2020-10-20 05:53:34,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-20 05:53:34,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2020-10-20 05:53:34,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-20 05:53:34,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 183 transitions. [2020-10-20 05:53:34,686 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 183 transitions. Word has length 11 [2020-10-20 05:53:34,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:34,686 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 183 transitions. [2020-10-20 05:53:34,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:53:34,686 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 183 transitions. [2020-10-20 05:53:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:53:34,687 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:34,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:34,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 05:53:34,690 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]=== [2020-10-20 05:53:34,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:34,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1961333606, now seen corresponding path program 1 times [2020-10-20 05:53:34,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:34,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38474723] [2020-10-20 05:53:34,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:34,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:34,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38474723] [2020-10-20 05:53:34,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:34,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:53:34,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152919318] [2020-10-20 05:53:34,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:53:34,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:34,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:53:34,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:53:34,825 INFO L87 Difference]: Start difference. First operand 126 states and 183 transitions. Second operand 4 states. [2020-10-20 05:53:35,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:35,203 INFO L93 Difference]: Finished difference Result 220 states and 325 transitions. [2020-10-20 05:53:35,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:53:35,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-20 05:53:35,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:35,209 INFO L225 Difference]: With dead ends: 220 [2020-10-20 05:53:35,209 INFO L226 Difference]: Without dead ends: 220 [2020-10-20 05:53:35,210 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 [2020-10-20 05:53:35,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-20 05:53:35,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2020-10-20 05:53:35,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-20 05:53:35,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2020-10-20 05:53:35,244 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 13 [2020-10-20 05:53:35,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:35,245 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2020-10-20 05:53:35,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:53:35,245 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2020-10-20 05:53:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:53:35,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:35,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:35,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 05:53:35,256 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]=== [2020-10-20 05:53:35,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:35,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1961333605, now seen corresponding path program 1 times [2020-10-20 05:53:35,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:35,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409007592] [2020-10-20 05:53:35,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:35,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:35,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409007592] [2020-10-20 05:53:35,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:35,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 05:53:35,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801005977] [2020-10-20 05:53:35,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:53:35,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:35,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:53:35,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:53:35,357 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand 4 states. [2020-10-20 05:53:35,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:35,757 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2020-10-20 05:53:35,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:53:35,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-20 05:53:35,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:35,763 INFO L225 Difference]: With dead ends: 271 [2020-10-20 05:53:35,763 INFO L226 Difference]: Without dead ends: 271 [2020-10-20 05:53:35,764 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 [2020-10-20 05:53:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-20 05:53:35,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 247. [2020-10-20 05:53:35,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-20 05:53:35,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2020-10-20 05:53:35,786 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 13 [2020-10-20 05:53:35,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:35,786 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2020-10-20 05:53:35,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:53:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2020-10-20 05:53:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 05:53:35,787 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:35,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:35,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 05:53:35,788 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]=== [2020-10-20 05:53:35,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:35,789 INFO L82 PathProgramCache]: Analyzing trace with hash -671792639, now seen corresponding path program 1 times [2020-10-20 05:53:35,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:35,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530486261] [2020-10-20 05:53:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:35,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:35,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:35,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530486261] [2020-10-20 05:53:35,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:35,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 05:53:35,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358060016] [2020-10-20 05:53:35,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 05:53:35,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:35,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 05:53:35,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 05:53:35,899 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand 6 states. [2020-10-20 05:53:36,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:36,339 INFO L93 Difference]: Finished difference Result 473 states and 709 transitions. [2020-10-20 05:53:36,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 05:53:36,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-20 05:53:36,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:36,346 INFO L225 Difference]: With dead ends: 473 [2020-10-20 05:53:36,346 INFO L226 Difference]: Without dead ends: 473 [2020-10-20 05:53:36,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-20 05:53:36,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-20 05:53:36,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2020-10-20 05:53:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-10-20 05:53:36,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 675 transitions. [2020-10-20 05:53:36,371 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 675 transitions. Word has length 14 [2020-10-20 05:53:36,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:36,371 INFO L481 AbstractCegarLoop]: Abstraction has 439 states and 675 transitions. [2020-10-20 05:53:36,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 05:53:36,371 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 675 transitions. [2020-10-20 05:53:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 05:53:36,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:36,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:36,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-20 05:53:36,373 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]=== [2020-10-20 05:53:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:36,373 INFO L82 PathProgramCache]: Analyzing trace with hash -880304331, now seen corresponding path program 1 times [2020-10-20 05:53:36,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:36,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441597987] [2020-10-20 05:53:36,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:36,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:36,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441597987] [2020-10-20 05:53:36,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:36,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 05:53:36,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137775808] [2020-10-20 05:53:36,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 05:53:36,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:36,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 05:53:36,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 05:53:36,481 INFO L87 Difference]: Start difference. First operand 439 states and 675 transitions. Second operand 5 states. [2020-10-20 05:53:36,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:36,794 INFO L93 Difference]: Finished difference Result 765 states and 1122 transitions. [2020-10-20 05:53:36,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-20 05:53:36,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-20 05:53:36,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:36,803 INFO L225 Difference]: With dead ends: 765 [2020-10-20 05:53:36,803 INFO L226 Difference]: Without dead ends: 765 [2020-10-20 05:53:36,803 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 [2020-10-20 05:53:36,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-20 05:53:36,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 739. [2020-10-20 05:53:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-20 05:53:36,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1095 transitions. [2020-10-20 05:53:36,835 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1095 transitions. Word has length 15 [2020-10-20 05:53:36,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:36,835 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 1095 transitions. [2020-10-20 05:53:36,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 05:53:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1095 transitions. [2020-10-20 05:53:36,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 05:53:36,836 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:36,837 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] [2020-10-20 05:53:36,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-20 05:53:36,837 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]=== [2020-10-20 05:53:36,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:36,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1060051524, now seen corresponding path program 1 times [2020-10-20 05:53:36,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:36,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489307623] [2020-10-20 05:53:36,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:36,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 05:53:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:37,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-20 05:53:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:37,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:37,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489307623] [2020-10-20 05:53:37,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844963703] [2020-10-20 05:53:37,022 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 [2020-10-20 05:53:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:37,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-20 05:53:37,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:53:37,288 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 05:53:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:37,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 05:53:37,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2020-10-20 05:53:37,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227061714] [2020-10-20 05:53:37,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-20 05:53:37,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 05:53:37,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-20 05:53:37,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-20 05:53:37,295 INFO L87 Difference]: Start difference. First operand 739 states and 1095 transitions. Second operand 12 states. [2020-10-20 05:53:37,654 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-20 05:53:39,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:39,326 INFO L93 Difference]: Finished difference Result 2291 states and 3424 transitions. [2020-10-20 05:53:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-20 05:53:39,326 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-20 05:53:39,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:39,341 INFO L225 Difference]: With dead ends: 2291 [2020-10-20 05:53:39,341 INFO L226 Difference]: Without dead ends: 2291 [2020-10-20 05:53:39,342 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 [2020-10-20 05:53:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2020-10-20 05:53:39,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2147. [2020-10-20 05:53:39,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2147 states. [2020-10-20 05:53:39,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 3195 transitions. [2020-10-20 05:53:39,470 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 3195 transitions. Word has length 22 [2020-10-20 05:53:39,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:39,471 INFO L481 AbstractCegarLoop]: Abstraction has 2147 states and 3195 transitions. [2020-10-20 05:53:39,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-20 05:53:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 3195 transitions. [2020-10-20 05:53:39,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 05:53:39,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:39,484 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] [2020-10-20 05:53:39,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-20 05:53:39,699 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]=== [2020-10-20 05:53:39,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:39,700 INFO L82 PathProgramCache]: Analyzing trace with hash 38983170, now seen corresponding path program 1 times [2020-10-20 05:53:39,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 05:53:39,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106620999] [2020-10-20 05:53:39,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 05:53:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:53:39,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:53:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:53:39,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:53:39,780 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 05:53:39,780 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:53:39,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-20 05:53:39,810 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-20 05:53:39,823 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 [2020-10-20 05:53:39,825 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 [2020-10-20 05:53:39,827 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 [2020-10-20 05:53:39,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:53:39 BoogieIcfgContainer [2020-10-20 05:53:39,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:53:39,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:53:39,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:53:39,843 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:53:39,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:32" (3/4) ... [2020-10-20 05:53:39,848 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:53:39,848 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:53:39,850 INFO L168 Benchmark]: Toolchain (without parser) took 9092.29 ms. Allocated memory was 40.9 MB in the beginning and 104.3 MB in the end (delta: 63.4 MB). Free memory was 16.7 MB in the beginning and 52.8 MB in the end (delta: -36.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:39,851 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 30.9 MB. Free memory was 17.1 MB in the beginning and 17.1 MB in the end (delta: 31.6 kB). Peak memory consumption was 31.6 kB. Max. memory is 14.3 GB. [2020-10-20 05:53:39,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 627.03 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 15.8 MB in the beginning and 15.9 MB in the end (delta: -142.6 kB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:39,853 INFO L168 Benchmark]: Boogie Preprocessor took 68.98 ms. Allocated memory is still 43.5 MB. Free memory was 15.9 MB in the beginning and 12.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:39,854 INFO L168 Benchmark]: RCFGBuilder took 802.40 ms. Allocated memory was 43.5 MB in the beginning and 48.2 MB in the end (delta: 4.7 MB). Free memory was 12.7 MB in the beginning and 26.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:39,855 INFO L168 Benchmark]: TraceAbstraction took 7578.92 ms. Allocated memory was 48.2 MB in the beginning and 104.3 MB in the end (delta: 56.1 MB). Free memory was 25.8 MB in the beginning and 52.8 MB in the end (delta: -27.0 MB). Peak memory consumption was 29.1 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:39,856 INFO L168 Benchmark]: Witness Printer took 5.46 ms. Allocated memory is still 104.3 MB. Free memory is still 52.8 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:53:39,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 30.9 MB. Free memory was 17.1 MB in the beginning and 17.1 MB in the end (delta: 31.6 kB). Peak memory consumption was 31.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 627.03 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 15.8 MB in the beginning and 15.9 MB in the end (delta: -142.6 kB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 68.98 ms. Allocated memory is still 43.5 MB. Free memory was 15.9 MB in the beginning and 12.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 802.40 ms. Allocated memory was 43.5 MB in the beginning and 48.2 MB in the end (delta: 4.7 MB). Free memory was 12.7 MB in the beginning and 26.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 7578.92 ms. Allocated memory was 48.2 MB in the beginning and 104.3 MB in the end (delta: 56.1 MB). Free memory was 25.8 MB in the beginning and 52.8 MB in the end (delta: -27.0 MB). Peak memory consumption was 29.1 MB. Max. memory is 14.3 GB. * Witness Printer took 5.46 ms. Allocated memory is still 104.3 MB. Free memory is still 52.8 MB. There was no memory consumed. Max. memory is 14.3 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)=55, \old(S)=50, \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: 7.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 4.9s, 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, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 2.2s 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 337 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s 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 0.1.25-9a8b2e8 [2020-10-20 05:53:42,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 05:53:42,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 05:53:42,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 05:53:42,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 05:53:42,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 05:53:42,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 05:53:42,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 05:53:42,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 05:53:42,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 05:53:42,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 05:53:42,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 05:53:42,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 05:53:42,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 05:53:42,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 05:53:42,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 05:53:42,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 05:53:42,210 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 05:53:42,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 05:53:42,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 05:53:42,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 05:53:42,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 05:53:42,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 05:53:42,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 05:53:42,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 05:53:42,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 05:53:42,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 05:53:42,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 05:53:42,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 05:53:42,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 05:53:42,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 05:53:42,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 05:53:42,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 05:53:42,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 05:53:42,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 05:53:42,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 05:53:42,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 05:53:42,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 05:53:42,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 05:53:42,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 05:53:42,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 05:53:42,239 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 05:53:42,260 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 05:53:42,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 05:53:42,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 05:53:42,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 05:53:42,263 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 05:53:42,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 05:53:42,263 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 05:53:42,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 05:53:42,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 05:53:42,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 05:53:42,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 05:53:42,264 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 05:53:42,265 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 05:53:42,265 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 05:53:42,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 05:53:42,265 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 05:53:42,266 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 05:53:42,267 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 05:53:42,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 05:53:42,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 05:53:42,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 05:53:42,275 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 05:53:42,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 05:53:42,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 05:53:42,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 05:53:42,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 05:53:42,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 05:53:42,277 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 05:53:42,277 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 05:53:42,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 05:53:42,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 05:53:42,278 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 [2020-10-20 05:53:42,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 05:53:42,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 05:53:42,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 05:53:42,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 05:53:42,540 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 05:53:42,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-20 05:53:42,596 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d659c696/313a46f48b434882bf823c458d151e42/FLAG131c104bd [2020-10-20 05:53:43,091 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 05:53:43,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-20 05:53:43,108 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d659c696/313a46f48b434882bf823c458d151e42/FLAG131c104bd [2020-10-20 05:53:43,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d659c696/313a46f48b434882bf823c458d151e42 [2020-10-20 05:53:43,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 05:53:43,447 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 05:53:43,448 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 05:53:43,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 05:53:43,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 05:53:43,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:53:43" (1/1) ... [2020-10-20 05:53:43,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd01a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:43, skipping insertion in model container [2020-10-20 05:53:43,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:53:43" (1/1) ... [2020-10-20 05:53:43,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 05:53:43,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 05:53:44,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:53:44,026 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 05:53:44,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 05:53:44,206 INFO L208 MainTranslator]: Completed translation [2020-10-20 05:53:44,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44 WrapperNode [2020-10-20 05:53:44,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 05:53:44,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 05:53:44,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 05:53:44,209 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 05:53:44,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (1/1) ... [2020-10-20 05:53:44,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (1/1) ... [2020-10-20 05:53:44,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (1/1) ... [2020-10-20 05:53:44,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (1/1) ... [2020-10-20 05:53:44,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (1/1) ... [2020-10-20 05:53:44,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (1/1) ... [2020-10-20 05:53:44,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (1/1) ... [2020-10-20 05:53:44,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 05:53:44,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 05:53:44,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 05:53:44,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 05:53:44,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (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 [2020-10-20 05:53:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 05:53:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 05:53:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:53:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 05:53:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-20 05:53:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-20 05:53:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-20 05:53:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-20 05:53:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-20 05:53:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2020-10-20 05:53:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2020-10-20 05:53:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 05:53:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 05:53:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 05:53:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-20 05:53:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-20 05:53:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 05:53:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 05:53:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-20 05:53:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-20 05:53:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-20 05:53:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-20 05:53:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-20 05:53:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-20 05:53:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-20 05:53:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-20 05:53:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-20 05:53:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-20 05:53:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-20 05:53:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-20 05:53:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-20 05:53:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-20 05:53:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-20 05:53:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-20 05:53:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-20 05:53:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-20 05:53:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-20 05:53:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-20 05:53:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-20 05:53:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-20 05:53:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-20 05:53:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-20 05:53:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-20 05:53:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-20 05:53:44,369 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-20 05:53:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-20 05:53:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-20 05:53:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-20 05:53:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-20 05:53:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-20 05:53:44,370 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-20 05:53:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-20 05:53:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-20 05:53:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-20 05:53:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-20 05:53:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-20 05:53:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-20 05:53:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-20 05:53:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-20 05:53:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-20 05:53:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-20 05:53:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-20 05:53:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-20 05:53:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-20 05:53:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-20 05:53:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-20 05:53:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-20 05:53:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-20 05:53:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-20 05:53:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-20 05:53:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-20 05:53:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-20 05:53:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-20 05:53:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-20 05:53:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-20 05:53:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-20 05:53:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-20 05:53:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-20 05:53:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-20 05:53:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-20 05:53:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-20 05:53:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-20 05:53:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-20 05:53:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-20 05:53:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-20 05:53:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-20 05:53:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-20 05:53:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-20 05:53:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-20 05:53:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-20 05:53:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-20 05:53:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-20 05:53:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-20 05:53:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-20 05:53:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-20 05:53:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-20 05:53:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-20 05:53:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-20 05:53:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-20 05:53:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-20 05:53:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-20 05:53:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-20 05:53:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-20 05:53:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-20 05:53:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-20 05:53:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-20 05:53:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-20 05:53:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-20 05:53:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-20 05:53:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-20 05:53:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-20 05:53:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-20 05:53:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-20 05:53:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-20 05:53:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-20 05:53:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-20 05:53:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-20 05:53:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-20 05:53:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-20 05:53:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-20 05:53:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-20 05:53:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-20 05:53:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-20 05:53:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-20 05:53:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 05:53:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure push [2020-10-20 05:53:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-20 05:53:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 05:53:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-20 05:53:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2020-10-20 05:53:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-20 05:53:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 05:53:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 05:53:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 05:53:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 05:53:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 05:53:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 05:53:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-20 05:53:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-20 05:53:44,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-20 05:53:45,131 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 05:53:45,131 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-20 05:53:45,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:45 BoogieIcfgContainer [2020-10-20 05:53:45,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 05:53:45,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 05:53:45,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 05:53:45,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 05:53:45,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:53:43" (1/3) ... [2020-10-20 05:53:45,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20abc4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:53:45, skipping insertion in model container [2020-10-20 05:53:45,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:53:44" (2/3) ... [2020-10-20 05:53:45,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20abc4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:53:45, skipping insertion in model container [2020-10-20 05:53:45,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:45" (3/3) ... [2020-10-20 05:53:45,141 INFO L111 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2020-10-20 05:53:45,152 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 05:53:45,159 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-10-20 05:53:45,170 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-10-20 05:53:45,187 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 05:53:45,187 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 05:53:45,187 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 05:53:45,187 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 05:53:45,187 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 05:53:45,187 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 05:53:45,187 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 05:53:45,188 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 05:53:45,216 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-20 05:53:45,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 05:53:45,226 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:45,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:45,228 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]=== [2020-10-20 05:53:45,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:45,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1937878524, now seen corresponding path program 1 times [2020-10-20 05:53:45,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:53:45,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281219327] [2020-10-20 05:53:45,249 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 [2020-10-20 05:53:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:45,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 05:53:45,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:53:45,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:45,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:53:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:45,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281219327] [2020-10-20 05:53:45,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:45,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:53:45,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836400038] [2020-10-20 05:53:45,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 05:53:45,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:53:45,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 05:53:45,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 05:53:45,541 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2020-10-20 05:53:45,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:45,565 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-10-20 05:53:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 05:53:45,567 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-20 05:53:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:45,582 INFO L225 Difference]: With dead ends: 72 [2020-10-20 05:53:45,582 INFO L226 Difference]: Without dead ends: 69 [2020-10-20 05:53:45,584 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 [2020-10-20 05:53:45,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-20 05:53:45,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-20 05:53:45,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-20 05:53:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2020-10-20 05:53:45,630 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 8 [2020-10-20 05:53:45,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:45,631 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2020-10-20 05:53:45,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 05:53:45,631 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2020-10-20 05:53:45,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 05:53:45,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:45,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:45,854 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 05:53:45,854 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]=== [2020-10-20 05:53:45,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:45,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1937866992, now seen corresponding path program 1 times [2020-10-20 05:53:45,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:53:45,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1096429215] [2020-10-20 05:53:45,857 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 [2020-10-20 05:53:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:46,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 05:53:46,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:53:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:46,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:53:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:46,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1096429215] [2020-10-20 05:53:46,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:46,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 05:53:46,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392797514] [2020-10-20 05:53:46,096 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:53:46,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:53:46,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:53:46,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:53:46,098 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand 3 states. [2020-10-20 05:53:46,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:46,177 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2020-10-20 05:53:46,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:53:46,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 05:53:46,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:46,181 INFO L225 Difference]: With dead ends: 120 [2020-10-20 05:53:46,181 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 05:53:46,182 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 [2020-10-20 05:53:46,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 05:53:46,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2020-10-20 05:53:46,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-20 05:53:46,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2020-10-20 05:53:46,200 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 8 [2020-10-20 05:53:46,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:46,200 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2020-10-20 05:53:46,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:53:46,200 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2020-10-20 05:53:46,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 05:53:46,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:46,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:46,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 05:53:46,419 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]=== [2020-10-20 05:53:46,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:46,420 INFO L82 PathProgramCache]: Analyzing trace with hash -55666767, now seen corresponding path program 1 times [2020-10-20 05:53:46,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:53:46,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862289480] [2020-10-20 05:53:46,422 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 [2020-10-20 05:53:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:46,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 05:53:46,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:53:46,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:46,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:53:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:46,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862289480] [2020-10-20 05:53:46,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:46,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:53:46,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678391900] [2020-10-20 05:53:46,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:53:46,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:53:46,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:53:46,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:53:46,617 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand 3 states. [2020-10-20 05:53:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:46,770 INFO L93 Difference]: Finished difference Result 128 states and 182 transitions. [2020-10-20 05:53:46,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:53:46,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 05:53:46,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:46,774 INFO L225 Difference]: With dead ends: 128 [2020-10-20 05:53:46,775 INFO L226 Difference]: Without dead ends: 125 [2020-10-20 05:53:46,775 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 [2020-10-20 05:53:46,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-20 05:53:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2020-10-20 05:53:46,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-20 05:53:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2020-10-20 05:53:46,791 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 9 [2020-10-20 05:53:46,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:46,792 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2020-10-20 05:53:46,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:53:46,792 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2020-10-20 05:53:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:53:46,793 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:46,793 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:47,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 05:53:47,007 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]=== [2020-10-20 05:53:47,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:47,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1911661939, now seen corresponding path program 1 times [2020-10-20 05:53:47,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:53:47,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119909363] [2020-10-20 05:53:47,009 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 [2020-10-20 05:53:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:47,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 05:53:47,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:53:47,237 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 [2020-10-20 05:53:47,238 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:53:47,242 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:53:47,243 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:53:47,243 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-20 05:53:47,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:47,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:53:47,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:47,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119909363] [2020-10-20 05:53:47,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:47,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 05:53:47,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191064072] [2020-10-20 05:53:47,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 05:53:47,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:53:47,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 05:53:47,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 05:53:47,265 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2020-10-20 05:53:47,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:47,424 INFO L93 Difference]: Finished difference Result 198 states and 290 transitions. [2020-10-20 05:53:47,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 05:53:47,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-20 05:53:47,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:47,427 INFO L225 Difference]: With dead ends: 198 [2020-10-20 05:53:47,427 INFO L226 Difference]: Without dead ends: 198 [2020-10-20 05:53:47,428 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 [2020-10-20 05:53:47,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-20 05:53:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 177. [2020-10-20 05:53:47,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-20 05:53:47,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 276 transitions. [2020-10-20 05:53:47,447 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 276 transitions. Word has length 11 [2020-10-20 05:53:47,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:47,447 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 276 transitions. [2020-10-20 05:53:47,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 05:53:47,447 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 276 transitions. [2020-10-20 05:53:47,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 05:53:47,448 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:47,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:47,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 05:53:47,671 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]=== [2020-10-20 05:53:47,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:47,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1911661938, now seen corresponding path program 1 times [2020-10-20 05:53:47,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:53:47,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890673483] [2020-10-20 05:53:47,672 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 [2020-10-20 05:53:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:47,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 05:53:47,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:53:47,859 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 [2020-10-20 05:53:47,860 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-20 05:53:47,867 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-20 05:53:47,867 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-20 05:53:47,868 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-20 05:53:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:47,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:53:47,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:47,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890673483] [2020-10-20 05:53:47,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:47,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-20 05:53:47,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513834318] [2020-10-20 05:53:47,942 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:53:47,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:53:47,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:53:47,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:53:47,944 INFO L87 Difference]: Start difference. First operand 177 states and 276 transitions. Second operand 4 states. [2020-10-20 05:53:48,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:48,338 INFO L93 Difference]: Finished difference Result 333 states and 499 transitions. [2020-10-20 05:53:48,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 05:53:48,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 05:53:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:48,344 INFO L225 Difference]: With dead ends: 333 [2020-10-20 05:53:48,345 INFO L226 Difference]: Without dead ends: 333 [2020-10-20 05:53:48,345 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 [2020-10-20 05:53:48,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-10-20 05:53:48,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 295. [2020-10-20 05:53:48,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-20 05:53:48,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 472 transitions. [2020-10-20 05:53:48,370 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 472 transitions. Word has length 11 [2020-10-20 05:53:48,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:48,371 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 472 transitions. [2020-10-20 05:53:48,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:53:48,371 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 472 transitions. [2020-10-20 05:53:48,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 05:53:48,372 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:48,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:48,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 05:53:48,586 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]=== [2020-10-20 05:53:48,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:48,587 INFO L82 PathProgramCache]: Analyzing trace with hash 868029060, now seen corresponding path program 1 times [2020-10-20 05:53:48,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:53:48,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272020528] [2020-10-20 05:53:48,588 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 [2020-10-20 05:53:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:48,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 05:53:48,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:53:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:48,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:53:48,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:48,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272020528] [2020-10-20 05:53:48,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:48,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:53:48,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290709723] [2020-10-20 05:53:48,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:53:48,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:53:48,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:53:48,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:53:48,778 INFO L87 Difference]: Start difference. First operand 295 states and 472 transitions. Second operand 4 states. [2020-10-20 05:53:48,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:48,849 INFO L93 Difference]: Finished difference Result 212 states and 298 transitions. [2020-10-20 05:53:48,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:53:48,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 05:53:48,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:48,852 INFO L225 Difference]: With dead ends: 212 [2020-10-20 05:53:48,852 INFO L226 Difference]: Without dead ends: 212 [2020-10-20 05:53:48,852 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 [2020-10-20 05:53:48,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-20 05:53:48,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2020-10-20 05:53:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-20 05:53:48,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 271 transitions. [2020-10-20 05:53:48,879 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 271 transitions. Word has length 12 [2020-10-20 05:53:48,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:48,880 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 271 transitions. [2020-10-20 05:53:48,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:53:48,880 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 271 transitions. [2020-10-20 05:53:48,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 05:53:48,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:48,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:49,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-20 05:53:49,094 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]=== [2020-10-20 05:53:49,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:49,095 INFO L82 PathProgramCache]: Analyzing trace with hash -390471896, now seen corresponding path program 1 times [2020-10-20 05:53:49,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:53:49,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013657] [2020-10-20 05:53:49,095 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 [2020-10-20 05:53:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 05:53:49,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 05:53:49,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 05:53:49,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:49,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 05:53:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 05:53:49,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013657] [2020-10-20 05:53:49,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 05:53:49,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-20 05:53:49,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794736707] [2020-10-20 05:53:49,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 05:53:49,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 05:53:49,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 05:53:49,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 05:53:49,277 INFO L87 Difference]: Start difference. First operand 181 states and 271 transitions. Second operand 4 states. [2020-10-20 05:53:49,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 05:53:49,333 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2020-10-20 05:53:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 05:53:49,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-20 05:53:49,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 05:53:49,336 INFO L225 Difference]: With dead ends: 281 [2020-10-20 05:53:49,336 INFO L226 Difference]: Without dead ends: 281 [2020-10-20 05:53:49,337 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 [2020-10-20 05:53:49,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-20 05:53:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-20 05:53:49,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-20 05:53:49,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 404 transitions. [2020-10-20 05:53:49,353 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 404 transitions. Word has length 13 [2020-10-20 05:53:49,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 05:53:49,354 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 404 transitions. [2020-10-20 05:53:49,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 05:53:49,354 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 404 transitions. [2020-10-20 05:53:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 05:53:49,355 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 05:53:49,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 05:53:49,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-20 05:53:49,568 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]=== [2020-10-20 05:53:49,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 05:53:49,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1606966587, now seen corresponding path program 1 times [2020-10-20 05:53:49,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 05:53:49,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277145608] [2020-10-20 05:53:49,570 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 [2020-10-20 05:53:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:53:49,745 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:53:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 05:53:49,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 05:53:49,932 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 05:53:49,932 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 05:53:50,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-20 05:53:50,171 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-20 05:53:50,178 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 21bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,179 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 28bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,179 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 14bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,179 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,180 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,180 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,180 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 24bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,180 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 22bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,180 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,181 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,181 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 27bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,181 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,184 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,184 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,184 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,184 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,184 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,185 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,185 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,185 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,185 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,186 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,186 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,186 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,187 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,188 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,188 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,188 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,188 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,189 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,189 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,189 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,189 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 [2020-10-20 05:53:50,190 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,190 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,190 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,190 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,192 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,192 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,192 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,192 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,193 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,193 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,193 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,193 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,193 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,194 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 [2020-10-20 05:53:50,194 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,194 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,194 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,196 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,196 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,196 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,196 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,197 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,197 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,197 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,197 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,197 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,198 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 [2020-10-20 05:53:50,198 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,198 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,198 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,199 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,200 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,200 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,200 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,200 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,201 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,201 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,201 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,201 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,202 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,202 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,202 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,203 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,203 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,203 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,204 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,204 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,204 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,204 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,205 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,205 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,205 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,205 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,206 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,206 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,207 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,207 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,207 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,207 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,207 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,208 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,208 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,208 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,208 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,209 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,209 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-20 05:53:50,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:53:50 BoogieIcfgContainer [2020-10-20 05:53:50,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 05:53:50,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 05:53:50,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 05:53:50,218 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 05:53:50,219 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:53:45" (3/4) ... [2020-10-20 05:53:50,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 05:53:50,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 05:53:50,225 INFO L168 Benchmark]: Toolchain (without parser) took 6782.71 ms. Allocated memory was 37.7 MB in the beginning and 79.7 MB in the end (delta: 41.9 MB). Free memory was 13.5 MB in the beginning and 31.9 MB in the end (delta: -18.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:50,225 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 37.2 MB. Free memory was 18.2 MB in the beginning and 18.1 MB in the end (delta: 78.9 kB). Peak memory consumption was 78.9 kB. Max. memory is 14.3 GB. [2020-10-20 05:53:50,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.28 ms. Allocated memory was 37.7 MB in the beginning and 48.8 MB in the end (delta: 11.0 MB). Free memory was 12.5 MB in the beginning and 31.7 MB in the end (delta: -19.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:50,227 INFO L168 Benchmark]: Boogie Preprocessor took 87.38 ms. Allocated memory is still 48.8 MB. Free memory was 31.7 MB in the beginning and 28.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:50,228 INFO L168 Benchmark]: RCFGBuilder took 838.32 ms. Allocated memory was 48.8 MB in the beginning and 52.4 MB in the end (delta: 3.7 MB). Free memory was 27.9 MB in the beginning and 13.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:50,229 INFO L168 Benchmark]: TraceAbstraction took 5083.41 ms. Allocated memory was 52.4 MB in the beginning and 79.7 MB in the end (delta: 27.3 MB). Free memory was 13.4 MB in the beginning and 31.9 MB in the end (delta: -18.6 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 05:53:50,229 INFO L168 Benchmark]: Witness Printer took 5.04 ms. Allocated memory is still 79.7 MB. Free memory is still 31.9 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 05:53:50,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 37.2 MB. Free memory was 18.2 MB in the beginning and 18.1 MB in the end (delta: 78.9 kB). Peak memory consumption was 78.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 758.28 ms. Allocated memory was 37.7 MB in the beginning and 48.8 MB in the end (delta: 11.0 MB). Free memory was 12.5 MB in the beginning and 31.7 MB in the end (delta: -19.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 87.38 ms. Allocated memory is still 48.8 MB. Free memory was 31.7 MB in the beginning and 28.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 838.32 ms. Allocated memory was 48.8 MB in the beginning and 52.4 MB in the end (delta: 3.7 MB). Free memory was 27.9 MB in the beginning and 13.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 5083.41 ms. Allocated memory was 52.4 MB in the beginning and 79.7 MB in the end (delta: 27.3 MB). Free memory was 13.4 MB in the beginning and 31.9 MB in the end (delta: -18.6 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Witness Printer took 5.04 ms. Allocated memory is still 79.7 MB. Free memory is still 31.9 MB. There was no memory consumed. Max. memory is 14.3 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 21bv32 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 14bv32 could not be translated for associated CType *cell - 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 12bv32 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 22bv32 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 13bv32 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 9bv32 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: 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: 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: 4.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.0s, 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, 0.5s SatisfiabilityAnalysisTime, 0.4s 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...