./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 54858612 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_1.5.800.v20200727-1323.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_1.5.800.v20200727-1323.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 0.2.0-5485861 [2020-10-26 03:30:13,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:30:13,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:30:13,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:30:13,925 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:30:13,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:30:13,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:30:13,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:30:13,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:30:13,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:30:13,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:30:13,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:30:13,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:30:13,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:30:13,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:30:13,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:30:13,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:30:13,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:30:13,947 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:30:13,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:30:13,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:30:13,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:30:13,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:30:13,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:30:13,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:30:13,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:30:13,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:30:13,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:30:13,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:30:13,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:30:13,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:30:13,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:30:13,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:30:13,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:30:13,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:30:13,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:30:13,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:30:13,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:30:13,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:30:13,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:30:13,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:30:13,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-26 03:30:14,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:30:14,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:30:14,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:30:14,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:30:14,013 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:30:14,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:30:14,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:30:14,014 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:30:14,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:30:14,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:30:14,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:30:14,015 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:30:14,015 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:30:14,016 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:30:14,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:30:14,016 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:30:14,017 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:30:14,017 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:30:14,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:30:14,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:30:14,018 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:30:14,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:30:14,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:30:14,019 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:30:14,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:30:14,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:30:14,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:30:14,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:30:14,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b010fd4a87c087de2df9a8799a5c607ab9a33d5c [2020-10-26 03:30:14,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:30:14,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:30:14,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:30:14,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:30:14,486 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:30:14,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-26 03:30:14,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9622cc0ab/7784387aeaa64a1ab4469bea365ad69c/FLAG44406b0a0 [2020-10-26 03:30:15,301 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:30:15,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-26 03:30:15,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9622cc0ab/7784387aeaa64a1ab4469bea365ad69c/FLAG44406b0a0 [2020-10-26 03:30:15,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9622cc0ab/7784387aeaa64a1ab4469bea365ad69c [2020-10-26 03:30:15,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:30:15,604 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:30:15,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:30:15,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:30:15,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:30:15,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:30:15" (1/1) ... [2020-10-26 03:30:15,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54f48fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:15, skipping insertion in model container [2020-10-26 03:30:15,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:30:15" (1/1) ... [2020-10-26 03:30:15,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:30:15,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:30:16,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:30:16,129 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:30:16,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:30:16,281 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:30:16,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16 WrapperNode [2020-10-26 03:30:16,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:30:16,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:30:16,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:30:16,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:30:16,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (1/1) ... [2020-10-26 03:30:16,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (1/1) ... [2020-10-26 03:30:16,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (1/1) ... [2020-10-26 03:30:16,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (1/1) ... [2020-10-26 03:30:16,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (1/1) ... [2020-10-26 03:30:16,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (1/1) ... [2020-10-26 03:30:16,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (1/1) ... [2020-10-26 03:30:16,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:30:16,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:30:16,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:30:16,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:30:16,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (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 [2020-10-26 03:30:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:30:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:30:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 03:30:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-26 03:30:16,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-26 03:30:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-26 03:30:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-26 03:30:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-26 03:30:16,448 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2020-10-26 03:30:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2020-10-26 03:30:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:30:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 03:30:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 03:30:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-26 03:30:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-26 03:30:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 03:30:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:30:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-26 03:30:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-26 03:30:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-26 03:30:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-26 03:30:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-26 03:30:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-26 03:30:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-26 03:30:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-26 03:30:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-26 03:30:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-26 03:30:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-26 03:30:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-26 03:30:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-26 03:30:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-26 03:30:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-26 03:30:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-26 03:30:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-26 03:30:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-26 03:30:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-26 03:30:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-26 03:30:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-26 03:30:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-26 03:30:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-26 03:30:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-26 03:30:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-26 03:30:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-26 03:30:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-26 03:30:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-26 03:30:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-26 03:30:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-26 03:30:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-26 03:30:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-26 03:30:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-26 03:30:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-26 03:30:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-26 03:30:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-26 03:30:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-26 03:30:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-26 03:30:16,459 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-26 03:30:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-26 03:30:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-26 03:30:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-26 03:30:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-26 03:30:16,460 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-26 03:30:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-26 03:30:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-26 03:30:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-26 03:30:16,461 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-26 03:30:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-26 03:30:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-26 03:30:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-26 03:30:16,462 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-26 03:30:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-26 03:30:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-26 03:30:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-26 03:30:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 03:30:16,463 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-26 03:30:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-26 03:30:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-26 03:30:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:30:16,464 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-26 03:30:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-26 03:30:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-26 03:30:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-26 03:30:16,465 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-26 03:30:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-26 03:30:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 03:30:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-26 03:30:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-26 03:30:16,466 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-26 03:30:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-26 03:30:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-26 03:30:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-26 03:30:16,467 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-26 03:30:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-26 03:30:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-26 03:30:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-26 03:30:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-26 03:30:16,468 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-26 03:30:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-26 03:30:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-26 03:30:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-26 03:30:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-26 03:30:16,469 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-26 03:30:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-26 03:30:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-26 03:30:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-26 03:30:16,470 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-26 03:30:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-26 03:30:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-26 03:30:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-26 03:30:16,471 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-26 03:30:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-26 03:30:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-26 03:30:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-26 03:30:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-26 03:30:16,472 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-26 03:30:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-26 03:30:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-26 03:30:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-26 03:30:16,473 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-26 03:30:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-26 03:30:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-26 03:30:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-26 03:30:16,474 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-26 03:30:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-26 03:30:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:30:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure push [2020-10-26 03:30:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 03:30:16,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 03:30:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-26 03:30:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2020-10-26 03:30:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-26 03:30:16,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 03:30:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:30:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:30:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:30:16,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 03:30:16,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:30:17,169 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:30:17,170 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-26 03:30:17,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:17 BoogieIcfgContainer [2020-10-26 03:30:17,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:30:17,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:30:17,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:30:17,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:30:17,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:30:15" (1/3) ... [2020-10-26 03:30:17,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9afcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:30:17, skipping insertion in model container [2020-10-26 03:30:17,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:16" (2/3) ... [2020-10-26 03:30:17,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a9afcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:30:17, skipping insertion in model container [2020-10-26 03:30:17,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:17" (3/3) ... [2020-10-26 03:30:17,185 INFO L111 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2020-10-26 03:30:17,199 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:30:17,206 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-10-26 03:30:17,222 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-10-26 03:30:17,250 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:30:17,251 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:30:17,251 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:30:17,251 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:30:17,252 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:30:17,252 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:30:17,252 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:30:17,253 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:30:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-26 03:30:17,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-26 03:30:17,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:17,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:17,286 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]=== [2020-10-26 03:30:17,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:17,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1423840420, now seen corresponding path program 1 times [2020-10-26 03:30:17,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:17,306 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751014214] [2020-10-26 03:30:17,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:17,671 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-26 03:30:17,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:17,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751014214] [2020-10-26 03:30:17,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:17,740 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:30:17,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775508892] [2020-10-26 03:30:17,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 03:30:17,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:17,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 03:30:17,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 03:30:17,778 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-26 03:30:18,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:18,132 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2020-10-26 03:30:18,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 03:30:18,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-26 03:30:18,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:18,147 INFO L225 Difference]: With dead ends: 92 [2020-10-26 03:30:18,148 INFO L226 Difference]: Without dead ends: 89 [2020-10-26 03:30:18,150 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 03:30:18,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-26 03:30:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2020-10-26 03:30:18,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-26 03:30:18,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2020-10-26 03:30:18,204 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 8 [2020-10-26 03:30:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:18,205 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2020-10-26 03:30:18,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 03:30:18,205 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2020-10-26 03:30:18,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 03:30:18,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:18,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:18,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 03:30:18,207 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]=== [2020-10-26 03:30:18,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:18,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1763708013, now seen corresponding path program 1 times [2020-10-26 03:30:18,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:18,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143687212] [2020-10-26 03:30:18,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:18,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:18,368 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143687212] [2020-10-26 03:30:18,368 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:18,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:30:18,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894112226] [2020-10-26 03:30:18,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:18,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:18,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:18,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:18,372 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 4 states. [2020-10-26 03:30:18,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:18,733 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2020-10-26 03:30:18,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:30:18,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-26 03:30:18,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:18,736 INFO L225 Difference]: With dead ends: 91 [2020-10-26 03:30:18,737 INFO L226 Difference]: Without dead ends: 91 [2020-10-26 03:30:18,738 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 [2020-10-26 03:30:18,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-26 03:30:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2020-10-26 03:30:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-26 03:30:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2020-10-26 03:30:18,749 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 10 [2020-10-26 03:30:18,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:18,750 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2020-10-26 03:30:18,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:18,751 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2020-10-26 03:30:18,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-26 03:30:18,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:18,752 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:18,752 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 03:30:18,753 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]=== [2020-10-26 03:30:18,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:18,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1763767595, now seen corresponding path program 1 times [2020-10-26 03:30:18,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:18,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611878517] [2020-10-26 03:30:18,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:18,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:18,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:18,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611878517] [2020-10-26 03:30:18,909 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:18,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:30:18,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964267796] [2020-10-26 03:30:18,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:18,910 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:18,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:18,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:18,912 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 4 states. [2020-10-26 03:30:19,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:19,242 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2020-10-26 03:30:19,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:30:19,243 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-26 03:30:19,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:19,245 INFO L225 Difference]: With dead ends: 135 [2020-10-26 03:30:19,245 INFO L226 Difference]: Without dead ends: 135 [2020-10-26 03:30:19,246 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 [2020-10-26 03:30:19,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-26 03:30:19,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 108. [2020-10-26 03:30:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-26 03:30:19,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2020-10-26 03:30:19,260 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 10 [2020-10-26 03:30:19,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:19,261 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-10-26 03:30:19,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:19,261 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2020-10-26 03:30:19,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:30:19,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:19,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:19,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 03:30:19,263 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]=== [2020-10-26 03:30:19,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:19,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1157780793, now seen corresponding path program 1 times [2020-10-26 03:30:19,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:19,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596313340] [2020-10-26 03:30:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:19,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:19,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:19,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596313340] [2020-10-26 03:30:19,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:19,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:30:19,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894218609] [2020-10-26 03:30:19,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:19,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:19,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:19,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:19,383 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2020-10-26 03:30:19,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:19,617 INFO L93 Difference]: Finished difference Result 149 states and 214 transitions. [2020-10-26 03:30:19,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:30:19,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 03:30:19,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:19,620 INFO L225 Difference]: With dead ends: 149 [2020-10-26 03:30:19,620 INFO L226 Difference]: Without dead ends: 144 [2020-10-26 03:30:19,621 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 [2020-10-26 03:30:19,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-26 03:30:19,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2020-10-26 03:30:19,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-26 03:30:19,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 183 transitions. [2020-10-26 03:30:19,638 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 183 transitions. Word has length 11 [2020-10-26 03:30:19,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:19,638 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 183 transitions. [2020-10-26 03:30:19,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:19,639 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 183 transitions. [2020-10-26 03:30:19,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 03:30:19,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:19,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:19,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 03:30:19,640 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]=== [2020-10-26 03:30:19,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:19,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1961333606, now seen corresponding path program 1 times [2020-10-26 03:30:19,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:19,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375447809] [2020-10-26 03:30:19,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:19,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:19,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:19,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375447809] [2020-10-26 03:30:19,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:19,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:30:19,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404961576] [2020-10-26 03:30:19,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:19,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:19,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:19,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:19,807 INFO L87 Difference]: Start difference. First operand 126 states and 183 transitions. Second operand 4 states. [2020-10-26 03:30:20,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:20,243 INFO L93 Difference]: Finished difference Result 220 states and 325 transitions. [2020-10-26 03:30:20,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:30:20,244 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 03:30:20,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:20,247 INFO L225 Difference]: With dead ends: 220 [2020-10-26 03:30:20,247 INFO L226 Difference]: Without dead ends: 220 [2020-10-26 03:30:20,248 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 [2020-10-26 03:30:20,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-10-26 03:30:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2020-10-26 03:30:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-10-26 03:30:20,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2020-10-26 03:30:20,276 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 13 [2020-10-26 03:30:20,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:20,278 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2020-10-26 03:30:20,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2020-10-26 03:30:20,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 03:30:20,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:20,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:20,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 03:30:20,281 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]=== [2020-10-26 03:30:20,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:20,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1961333605, now seen corresponding path program 1 times [2020-10-26 03:30:20,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:20,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220676044] [2020-10-26 03:30:20,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:20,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:20,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:20,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220676044] [2020-10-26 03:30:20,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:20,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:30:20,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570656683] [2020-10-26 03:30:20,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:20,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:20,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:20,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:20,444 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand 4 states. [2020-10-26 03:30:20,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:20,889 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2020-10-26 03:30:20,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:30:20,895 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 03:30:20,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:20,903 INFO L225 Difference]: With dead ends: 271 [2020-10-26 03:30:20,903 INFO L226 Difference]: Without dead ends: 271 [2020-10-26 03:30:20,903 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 [2020-10-26 03:30:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-26 03:30:20,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 247. [2020-10-26 03:30:20,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-26 03:30:20,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2020-10-26 03:30:20,936 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 13 [2020-10-26 03:30:20,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:20,936 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2020-10-26 03:30:20,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:20,937 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2020-10-26 03:30:20,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-26 03:30:20,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:20,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:20,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 03:30:20,940 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]=== [2020-10-26 03:30:20,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:20,943 INFO L82 PathProgramCache]: Analyzing trace with hash -671792639, now seen corresponding path program 1 times [2020-10-26 03:30:20,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:20,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280806418] [2020-10-26 03:30:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:21,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:21,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:21,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280806418] [2020-10-26 03:30:21,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:21,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:30:21,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817165287] [2020-10-26 03:30:21,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:30:21,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:21,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:30:21,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:30:21,106 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand 6 states. [2020-10-26 03:30:21,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:21,542 INFO L93 Difference]: Finished difference Result 473 states and 709 transitions. [2020-10-26 03:30:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 03:30:21,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-26 03:30:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:21,547 INFO L225 Difference]: With dead ends: 473 [2020-10-26 03:30:21,548 INFO L226 Difference]: Without dead ends: 473 [2020-10-26 03:30:21,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-26 03:30:21,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-26 03:30:21,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2020-10-26 03:30:21,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-10-26 03:30:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 675 transitions. [2020-10-26 03:30:21,571 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 675 transitions. Word has length 14 [2020-10-26 03:30:21,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:21,572 INFO L481 AbstractCegarLoop]: Abstraction has 439 states and 675 transitions. [2020-10-26 03:30:21,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:30:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 675 transitions. [2020-10-26 03:30:21,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 03:30:21,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:21,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:21,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 03:30:21,574 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]=== [2020-10-26 03:30:21,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:21,575 INFO L82 PathProgramCache]: Analyzing trace with hash -880304331, now seen corresponding path program 1 times [2020-10-26 03:30:21,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:21,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960560079] [2020-10-26 03:30:21,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:21,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:21,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960560079] [2020-10-26 03:30:21,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:21,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:30:21,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250702770] [2020-10-26 03:30:21,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:30:21,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:21,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:30:21,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:30:21,693 INFO L87 Difference]: Start difference. First operand 439 states and 675 transitions. Second operand 5 states. [2020-10-26 03:30:22,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:22,045 INFO L93 Difference]: Finished difference Result 765 states and 1122 transitions. [2020-10-26 03:30:22,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:30:22,047 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-26 03:30:22,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:22,054 INFO L225 Difference]: With dead ends: 765 [2020-10-26 03:30:22,055 INFO L226 Difference]: Without dead ends: 765 [2020-10-26 03:30:22,055 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 [2020-10-26 03:30:22,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-10-26 03:30:22,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 739. [2020-10-26 03:30:22,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-10-26 03:30:22,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1095 transitions. [2020-10-26 03:30:22,098 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1095 transitions. Word has length 15 [2020-10-26 03:30:22,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:22,098 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 1095 transitions. [2020-10-26 03:30:22,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:30:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1095 transitions. [2020-10-26 03:30:22,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 03:30:22,100 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:22,100 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] [2020-10-26 03:30:22,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 03:30:22,101 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]=== [2020-10-26 03:30:22,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:22,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1060051524, now seen corresponding path program 1 times [2020-10-26 03:30:22,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:22,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545127512] [2020-10-26 03:30:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:22,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:22,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:30:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:22,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-26 03:30:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:22,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:22,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545127512] [2020-10-26 03:30:22,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814582692] [2020-10-26 03:30:22,324 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 [2020-10-26 03:30:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:22,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-26 03:30:22,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:30:22,732 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-26 03:30:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:22,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-26 03:30:22,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2020-10-26 03:30:22,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644095773] [2020-10-26 03:30:22,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-26 03:30:22,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:30:22,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-26 03:30:22,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-26 03:30:22,760 INFO L87 Difference]: Start difference. First operand 739 states and 1095 transitions. Second operand 12 states. [2020-10-26 03:30:23,195 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-10-26 03:30:23,459 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-10-26 03:30:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:25,077 INFO L93 Difference]: Finished difference Result 2291 states and 3424 transitions. [2020-10-26 03:30:25,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-26 03:30:25,087 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-26 03:30:25,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:25,115 INFO L225 Difference]: With dead ends: 2291 [2020-10-26 03:30:25,116 INFO L226 Difference]: Without dead ends: 2291 [2020-10-26 03:30:25,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2020-10-26 03:30:25,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2020-10-26 03:30:25,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2147. [2020-10-26 03:30:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2147 states. [2020-10-26 03:30:25,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 3195 transitions. [2020-10-26 03:30:25,306 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 3195 transitions. Word has length 22 [2020-10-26 03:30:25,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:25,308 INFO L481 AbstractCegarLoop]: Abstraction has 2147 states and 3195 transitions. [2020-10-26 03:30:25,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-26 03:30:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 3195 transitions. [2020-10-26 03:30:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-26 03:30:25,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:25,318 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] [2020-10-26 03:30:25,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-10-26 03:30:25,535 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]=== [2020-10-26 03:30:25,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:25,536 INFO L82 PathProgramCache]: Analyzing trace with hash 38983170, now seen corresponding path program 1 times [2020-10-26 03:30:25,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:30:25,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449668426] [2020-10-26 03:30:25,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:30:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:30:25,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:30:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:30:25,642 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:30:25,711 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 03:30:25,712 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:30:25,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 03:30:25,769 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-26 03:30:25,799 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 [2020-10-26 03:30:25,803 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 [2020-10-26 03:30:25,805 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 [2020-10-26 03:30:25,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:30:25 BoogieIcfgContainer [2020-10-26 03:30:25,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:30:25,832 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:30:25,832 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:30:25,832 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:30:25,833 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:17" (3/4) ... [2020-10-26 03:30:25,839 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 03:30:25,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:30:25,842 INFO L168 Benchmark]: Toolchain (without parser) took 10241.90 ms. Allocated memory was 48.2 MB in the beginning and 157.3 MB in the end (delta: 109.1 MB). Free memory was 23.5 MB in the beginning and 121.0 MB in the end (delta: -97.5 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:25,843 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 48.2 MB. Free memory was 28.4 MB in the beginning and 28.3 MB in the end (delta: 33.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:30:25,844 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.12 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 22.9 MB in the beginning and 38.5 MB in the end (delta: -15.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:25,850 INFO L168 Benchmark]: Boogie Preprocessor took 74.23 ms. Allocated memory is still 60.8 MB. Free memory was 38.5 MB in the beginning and 35.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:25,852 INFO L168 Benchmark]: RCFGBuilder took 814.37 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 35.5 MB in the beginning and 46.0 MB in the end (delta: -10.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:25,853 INFO L168 Benchmark]: TraceAbstraction took 8656.01 ms. Allocated memory was 73.4 MB in the beginning and 157.3 MB in the end (delta: 83.9 MB). Free memory was 45.6 MB in the beginning and 121.0 MB in the end (delta: -75.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:25,856 INFO L168 Benchmark]: Witness Printer took 7.83 ms. Allocated memory is still 157.3 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:30:25,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 48.2 MB. Free memory was 28.4 MB in the beginning and 28.3 MB in the end (delta: 33.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 674.12 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 22.9 MB in the beginning and 38.5 MB in the end (delta: -15.7 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.23 ms. Allocated memory is still 60.8 MB. Free memory was 38.5 MB in the beginning and 35.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 814.37 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 35.5 MB in the beginning and 46.0 MB in the end (delta: -10.5 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8656.01 ms. Allocated memory was 73.4 MB in the beginning and 157.3 MB in the end (delta: 83.9 MB). Free memory was 45.6 MB in the beginning and 121.0 MB in the end (delta: -75.5 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Witness Printer took 7.83 ms. Allocated memory is still 157.3 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 592]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 592. Possible FailurePath: [L528] struct cell *S; [L529] int pc1 = 1; [L530] int pc4 = 1; [L531] static struct cell *t1 = ((void *)0); [L532] static struct cell *x1 = ((void *)0); [L561] struct cell* garbage; [L562] static struct cell *t4 = ((void *)0); [L563] static struct cell *x4 = ((void *)0); [L566] static int res4; VAL [\old(garbage)=60, \old(garbage)=66, \old(pc1)=53, \old(pc4)=67, \old(res4)=54, \old(S)=50, \old(S)=55, \old(t1)=61, \old(t1)=72, \old(t4)=58, \old(t4)=52, \old(x1)=62, \old(x1)=68, \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: 8.4s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 5.4s, 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, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 2.3s 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, 1.5s 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 0.2.0-5485861 [2020-10-26 03:30:28,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:30:28,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:30:28,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:30:28,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:30:28,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:30:28,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:30:28,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:30:28,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:30:28,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:30:28,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:30:28,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:30:28,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:30:28,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:30:28,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:30:28,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:30:28,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:30:28,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:30:28,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:30:28,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:30:28,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:30:28,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:30:28,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:30:28,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:30:28,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:30:28,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:30:28,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:30:28,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:30:28,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:30:28,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:30:28,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:30:28,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:30:28,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:30:28,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:30:28,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:30:28,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:30:28,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:30:28,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:30:28,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:30:28,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:30:28,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:30:28,753 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-26 03:30:28,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:30:28,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:30:28,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:30:28,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:30:28,825 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:30:28,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:30:28,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:30:28,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:30:28,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:30:28,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:30:28,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:30:28,826 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:30:28,827 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:30:28,827 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:30:28,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:30:28,828 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:30:28,828 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-26 03:30:28,828 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-26 03:30:28,828 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:30:28,829 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:30:28,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:30:28,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:30:28,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:30:28,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:30:28,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:30:28,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:30:28,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:30:28,831 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-26 03:30:28,831 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-26 03:30:28,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:30:28,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-26 03:30:28,832 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b010fd4a87c087de2df9a8799a5c607ab9a33d5c [2020-10-26 03:30:29,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:30:29,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:30:29,289 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:30:29,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:30:29,292 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:30:29,294 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-26 03:30:29,404 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a443ff0c/e9e6bfccd89941abb4b00c4405dc519e/FLAG802c2f537 [2020-10-26 03:30:30,266 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:30:30,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-10-26 03:30:30,284 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a443ff0c/e9e6bfccd89941abb4b00c4405dc519e/FLAG802c2f537 [2020-10-26 03:30:30,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a443ff0c/e9e6bfccd89941abb4b00c4405dc519e [2020-10-26 03:30:30,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:30:30,503 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:30:30,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:30:30,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:30:30,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:30:30,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:30:30" (1/1) ... [2020-10-26 03:30:30,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6942e056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:30, skipping insertion in model container [2020-10-26 03:30:30,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:30:30" (1/1) ... [2020-10-26 03:30:30,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:30:30,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:30:31,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:30:31,113 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:30:31,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:30:31,300 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:30:31,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31 WrapperNode [2020-10-26 03:30:31,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:30:31,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:30:31,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:30:31,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:30:31,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (1/1) ... [2020-10-26 03:30:31,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (1/1) ... [2020-10-26 03:30:31,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (1/1) ... [2020-10-26 03:30:31,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (1/1) ... [2020-10-26 03:30:31,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (1/1) ... [2020-10-26 03:30:31,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (1/1) ... [2020-10-26 03:30:31,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (1/1) ... [2020-10-26 03:30:31,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:30:31,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:30:31,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:30:31,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:30:31,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (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 [2020-10-26 03:30:31,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:30:31,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:30:31,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-10-26 03:30:31,469 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 03:30:31,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-10-26 03:30:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-10-26 03:30:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-10-26 03:30:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-10-26 03:30:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-10-26 03:30:31,470 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2020-10-26 03:30:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2020-10-26 03:30:31,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:30:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 03:30:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 03:30:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-26 03:30:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-26 03:30:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 03:30:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:30:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-26 03:30:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-26 03:30:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-26 03:30:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-26 03:30:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-26 03:30:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-26 03:30:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-26 03:30:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-26 03:30:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-26 03:30:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-26 03:30:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-26 03:30:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-26 03:30:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-26 03:30:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-26 03:30:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-26 03:30:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-26 03:30:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-10-26 03:30:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-10-26 03:30:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-10-26 03:30:31,477 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-10-26 03:30:31,477 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-10-26 03:30:31,477 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-26 03:30:31,477 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-26 03:30:31,477 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-26 03:30:31,478 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-26 03:30:31,478 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-26 03:30:31,478 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-26 03:30:31,478 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-26 03:30:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-26 03:30:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-26 03:30:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-26 03:30:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-26 03:30:31,479 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-26 03:30:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-26 03:30:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-26 03:30:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-26 03:30:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-26 03:30:31,480 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-26 03:30:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-26 03:30:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-26 03:30:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-26 03:30:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-26 03:30:31,481 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-26 03:30:31,482 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-26 03:30:31,482 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-26 03:30:31,482 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-26 03:30:31,482 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-26 03:30:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-26 03:30:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-26 03:30:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-26 03:30:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-26 03:30:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-26 03:30:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-26 03:30:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-26 03:30:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-26 03:30:31,492 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 03:30:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-26 03:30:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-26 03:30:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-26 03:30:31,493 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:30:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-26 03:30:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-26 03:30:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-26 03:30:31,494 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-26 03:30:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-26 03:30:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-26 03:30:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 03:30:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-26 03:30:31,495 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-26 03:30:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-26 03:30:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-26 03:30:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-26 03:30:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-26 03:30:31,496 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-26 03:30:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-26 03:30:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-26 03:30:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-26 03:30:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-26 03:30:31,497 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-26 03:30:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-26 03:30:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-26 03:30:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-26 03:30:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-26 03:30:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-26 03:30:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-26 03:30:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-26 03:30:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-26 03:30:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-26 03:30:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-26 03:30:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-26 03:30:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-26 03:30:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-26 03:30:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-26 03:30:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-26 03:30:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-26 03:30:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-26 03:30:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-26 03:30:31,501 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-26 03:30:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-26 03:30:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-26 03:30:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-26 03:30:31,502 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-26 03:30:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-26 03:30:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-26 03:30:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-26 03:30:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-26 03:30:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:30:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure push [2020-10-26 03:30:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 03:30:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-26 03:30:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-26 03:30:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2020-10-26 03:30:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-26 03:30:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-26 03:30:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:30:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:30:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:30:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-26 03:30:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:30:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-10-26 03:30:31,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-26 03:30:31,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-26 03:30:32,476 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:30:32,477 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-10-26 03:30:32,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:32 BoogieIcfgContainer [2020-10-26 03:30:32,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:30:32,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:30:32,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:30:32,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:30:32,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:30:30" (1/3) ... [2020-10-26 03:30:32,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b435289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:30:32, skipping insertion in model container [2020-10-26 03:30:32,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:30:31" (2/3) ... [2020-10-26 03:30:32,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b435289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:30:32, skipping insertion in model container [2020-10-26 03:30:32,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:32" (3/3) ... [2020-10-26 03:30:32,491 INFO L111 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2020-10-26 03:30:32,505 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:30:32,511 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-10-26 03:30:32,526 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-10-26 03:30:32,551 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:30:32,551 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:30:32,551 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:30:32,552 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:30:32,552 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:30:32,552 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:30:32,552 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:30:32,552 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:30:32,570 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-10-26 03:30:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-26 03:30:32,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:32,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:32,580 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]=== [2020-10-26 03:30:32,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:32,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1937878524, now seen corresponding path program 1 times [2020-10-26 03:30:32,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:30:32,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819467042] [2020-10-26 03:30:32,610 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 [2020-10-26 03:30:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:32,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-26 03:30:32,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:30:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:32,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:30:32,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:32,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819467042] [2020-10-26 03:30:32,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:32,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-26 03:30:32,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121245181] [2020-10-26 03:30:32,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-26 03:30:32,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:30:32,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-26 03:30:32,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-26 03:30:33,002 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2020-10-26 03:30:33,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:33,025 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-10-26 03:30:33,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-26 03:30:33,034 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-26 03:30:33,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:33,049 INFO L225 Difference]: With dead ends: 72 [2020-10-26 03:30:33,050 INFO L226 Difference]: Without dead ends: 69 [2020-10-26 03:30:33,052 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 [2020-10-26 03:30:33,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-26 03:30:33,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-26 03:30:33,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-26 03:30:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2020-10-26 03:30:33,111 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 8 [2020-10-26 03:30:33,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:33,112 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2020-10-26 03:30:33,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-26 03:30:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2020-10-26 03:30:33,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-26 03:30:33,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:33,114 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:33,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-26 03:30:33,338 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]=== [2020-10-26 03:30:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:33,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1937866992, now seen corresponding path program 1 times [2020-10-26 03:30:33,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:30:33,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1633014933] [2020-10-26 03:30:33,347 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 [2020-10-26 03:30:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:33,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-26 03:30:33,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:30:33,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:33,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:30:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:33,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1633014933] [2020-10-26 03:30:33,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:33,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-26 03:30:33,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387411685] [2020-10-26 03:30:33,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 03:30:33,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:30:33,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 03:30:33,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 03:30:33,600 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand 3 states. [2020-10-26 03:30:33,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:33,677 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2020-10-26 03:30:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 03:30:33,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-26 03:30:33,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:33,681 INFO L225 Difference]: With dead ends: 120 [2020-10-26 03:30:33,681 INFO L226 Difference]: Without dead ends: 120 [2020-10-26 03:30:33,682 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 [2020-10-26 03:30:33,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-26 03:30:33,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2020-10-26 03:30:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-26 03:30:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2020-10-26 03:30:33,700 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 8 [2020-10-26 03:30:33,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:33,701 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2020-10-26 03:30:33,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 03:30:33,701 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2020-10-26 03:30:33,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-26 03:30:33,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:33,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:33,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-26 03:30:33,924 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]=== [2020-10-26 03:30:33,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:33,925 INFO L82 PathProgramCache]: Analyzing trace with hash -55666767, now seen corresponding path program 1 times [2020-10-26 03:30:33,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:30:33,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109537277] [2020-10-26 03:30:33,927 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 [2020-10-26 03:30:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:34,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 03:30:34,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:30:34,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:34,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:30:34,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:34,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109537277] [2020-10-26 03:30:34,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:34,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-26 03:30:34,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197693249] [2020-10-26 03:30:34,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 03:30:34,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:30:34,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 03:30:34,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 03:30:34,130 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand 3 states. [2020-10-26 03:30:34,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:34,280 INFO L93 Difference]: Finished difference Result 128 states and 182 transitions. [2020-10-26 03:30:34,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 03:30:34,281 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-26 03:30:34,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:34,283 INFO L225 Difference]: With dead ends: 128 [2020-10-26 03:30:34,283 INFO L226 Difference]: Without dead ends: 125 [2020-10-26 03:30:34,284 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 [2020-10-26 03:30:34,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-26 03:30:34,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2020-10-26 03:30:34,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-26 03:30:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2020-10-26 03:30:34,300 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 9 [2020-10-26 03:30:34,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:34,300 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2020-10-26 03:30:34,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 03:30:34,301 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2020-10-26 03:30:34,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:30:34,301 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:34,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:34,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-26 03:30:34,507 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]=== [2020-10-26 03:30:34,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:34,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1911661939, now seen corresponding path program 1 times [2020-10-26 03:30:34,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:30:34,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206206181] [2020-10-26 03:30:34,510 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 [2020-10-26 03:30:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:34,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-26 03:30:34,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:30:34,756 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 [2020-10-26 03:30:34,757 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:30:34,763 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:30:34,763 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:30:34,764 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-10-26 03:30:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:34,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:30:34,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:34,790 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206206181] [2020-10-26 03:30:34,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:34,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-26 03:30:34,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410154602] [2020-10-26 03:30:34,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 03:30:34,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:30:34,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 03:30:34,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 03:30:34,792 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2020-10-26 03:30:34,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:34,975 INFO L93 Difference]: Finished difference Result 198 states and 290 transitions. [2020-10-26 03:30:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 03:30:34,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-26 03:30:34,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:34,978 INFO L225 Difference]: With dead ends: 198 [2020-10-26 03:30:34,978 INFO L226 Difference]: Without dead ends: 198 [2020-10-26 03:30:34,979 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 [2020-10-26 03:30:34,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-26 03:30:34,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 177. [2020-10-26 03:30:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-10-26 03:30:34,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 276 transitions. [2020-10-26 03:30:34,998 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 276 transitions. Word has length 11 [2020-10-26 03:30:34,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:34,999 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 276 transitions. [2020-10-26 03:30:34,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 03:30:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 276 transitions. [2020-10-26 03:30:35,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-26 03:30:35,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:35,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:35,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-26 03:30:35,217 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]=== [2020-10-26 03:30:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:35,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1911661938, now seen corresponding path program 1 times [2020-10-26 03:30:35,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:30:35,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231569447] [2020-10-26 03:30:35,219 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 [2020-10-26 03:30:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:35,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-26 03:30:35,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:30:35,434 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 [2020-10-26 03:30:35,434 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-10-26 03:30:35,441 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-10-26 03:30:35,442 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-10-26 03:30:35,442 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-10-26 03:30:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:35,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:30:35,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:35,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231569447] [2020-10-26 03:30:35,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:35,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-26 03:30:35,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125114437] [2020-10-26 03:30:35,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:35,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:30:35,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:35,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:35,533 INFO L87 Difference]: Start difference. First operand 177 states and 276 transitions. Second operand 4 states. [2020-10-26 03:30:35,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:35,946 INFO L93 Difference]: Finished difference Result 333 states and 499 transitions. [2020-10-26 03:30:35,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:30:35,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-26 03:30:35,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:35,951 INFO L225 Difference]: With dead ends: 333 [2020-10-26 03:30:35,951 INFO L226 Difference]: Without dead ends: 333 [2020-10-26 03:30:35,951 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 [2020-10-26 03:30:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-10-26 03:30:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 295. [2020-10-26 03:30:35,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-10-26 03:30:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 472 transitions. [2020-10-26 03:30:35,974 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 472 transitions. Word has length 11 [2020-10-26 03:30:35,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:35,975 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 472 transitions. [2020-10-26 03:30:35,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 472 transitions. [2020-10-26 03:30:35,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-26 03:30:35,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:35,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:36,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-26 03:30:36,192 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]=== [2020-10-26 03:30:36,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:36,193 INFO L82 PathProgramCache]: Analyzing trace with hash 868029060, now seen corresponding path program 1 times [2020-10-26 03:30:36,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:30:36,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879797877] [2020-10-26 03:30:36,194 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 [2020-10-26 03:30:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:36,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 03:30:36,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:30:36,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:36,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:30:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:36,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879797877] [2020-10-26 03:30:36,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:36,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-26 03:30:36,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761867613] [2020-10-26 03:30:36,414 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:36,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:30:36,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:36,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:36,415 INFO L87 Difference]: Start difference. First operand 295 states and 472 transitions. Second operand 4 states. [2020-10-26 03:30:36,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:36,478 INFO L93 Difference]: Finished difference Result 212 states and 298 transitions. [2020-10-26 03:30:36,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:30:36,479 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-26 03:30:36,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:36,482 INFO L225 Difference]: With dead ends: 212 [2020-10-26 03:30:36,482 INFO L226 Difference]: Without dead ends: 212 [2020-10-26 03:30:36,483 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 [2020-10-26 03:30:36,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-26 03:30:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2020-10-26 03:30:36,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-10-26 03:30:36,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 271 transitions. [2020-10-26 03:30:36,496 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 271 transitions. Word has length 12 [2020-10-26 03:30:36,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:36,497 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 271 transitions. [2020-10-26 03:30:36,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 271 transitions. [2020-10-26 03:30:36,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 03:30:36,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:36,498 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:36,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-26 03:30:36,718 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]=== [2020-10-26 03:30:36,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:36,720 INFO L82 PathProgramCache]: Analyzing trace with hash -390471896, now seen corresponding path program 1 times [2020-10-26 03:30:36,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:30:36,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845374254] [2020-10-26 03:30:36,721 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 [2020-10-26 03:30:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:30:36,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-26 03:30:36,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 03:30:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:36,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-26 03:30:36,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:30:36,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845374254] [2020-10-26 03:30:36,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:30:36,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-10-26 03:30:36,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38401369] [2020-10-26 03:30:36,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:30:36,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-26 03:30:36,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:30:36,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:30:36,953 INFO L87 Difference]: Start difference. First operand 181 states and 271 transitions. Second operand 4 states. [2020-10-26 03:30:37,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:30:37,013 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2020-10-26 03:30:37,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:30:37,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-26 03:30:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:30:37,017 INFO L225 Difference]: With dead ends: 281 [2020-10-26 03:30:37,017 INFO L226 Difference]: Without dead ends: 281 [2020-10-26 03:30:37,017 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 [2020-10-26 03:30:37,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-10-26 03:30:37,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-10-26 03:30:37,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 03:30:37,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 404 transitions. [2020-10-26 03:30:37,034 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 404 transitions. Word has length 13 [2020-10-26 03:30:37,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:30:37,035 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 404 transitions. [2020-10-26 03:30:37,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:30:37,035 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 404 transitions. [2020-10-26 03:30:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-26 03:30:37,036 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:30:37,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:30:37,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-26 03:30:37,252 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]=== [2020-10-26 03:30:37,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:30:37,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1606966587, now seen corresponding path program 1 times [2020-10-26 03:30:37,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-26 03:30:37,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42283672] [2020-10-26 03:30:37,253 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 [2020-10-26 03:30:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:30:37,495 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:30:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:30:37,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:30:37,679 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-26 03:30:37,679 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:30:37,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-26 03:30:37,938 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-10-26 03:30:37,956 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,957 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 21bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,957 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 22bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,957 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 28bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 27bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 24bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,958 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,959 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,959 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 14bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,963 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,964 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,966 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,966 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,966 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,967 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,972 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 [2020-10-26 03:30:37,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,972 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,973 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,977 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,978 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,978 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,978 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,978 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,978 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,981 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,981 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,981 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 [2020-10-26 03:30:37,981 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,981 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,982 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,983 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,983 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,983 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,984 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,984 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,984 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,984 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 [2020-10-26 03:30:37,984 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,984 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,985 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,986 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,986 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,987 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,988 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,989 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,990 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,991 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,991 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,992 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,993 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,993 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,993 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,993 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,993 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:37,994 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-10-26 03:30:38,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:30:38 BoogieIcfgContainer [2020-10-26 03:30:38,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:30:38,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:30:38,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:30:38,006 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:30:38,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:30:32" (3/4) ... [2020-10-26 03:30:38,010 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 03:30:38,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:30:38,012 INFO L168 Benchmark]: Toolchain (without parser) took 7514.30 ms. Allocated memory was 39.8 MB in the beginning and 104.9 MB in the end (delta: 65.0 MB). Free memory was 22.7 MB in the beginning and 57.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:38,012 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 39.8 MB. Free memory was 22.8 MB in the beginning and 22.8 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:30:38,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.36 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 22.1 MB in the beginning and 27.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:38,014 INFO L168 Benchmark]: Boogie Preprocessor took 91.50 ms. Allocated memory is still 48.2 MB. Free memory was 26.9 MB in the beginning and 23.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:38,015 INFO L168 Benchmark]: RCFGBuilder took 1085.02 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 28.0 MB in the end (delta: -4.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:38,015 INFO L168 Benchmark]: TraceAbstraction took 5522.52 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 27.4 MB in the beginning and 57.9 MB in the end (delta: -30.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-10-26 03:30:38,016 INFO L168 Benchmark]: Witness Printer took 4.75 ms. Allocated memory is still 104.9 MB. Free memory is still 57.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:30:38,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 39.8 MB. Free memory was 22.8 MB in the beginning and 22.8 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 796.36 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 22.1 MB in the beginning and 27.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.50 ms. Allocated memory is still 48.2 MB. Free memory was 26.9 MB in the beginning and 23.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1085.02 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.6 MB in the beginning and 28.0 MB in the end (delta: -4.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5522.52 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 27.4 MB in the beginning and 57.9 MB in the end (delta: -30.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.75 ms. Allocated memory is still 104.9 MB. Free memory is still 57.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 21bv32 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 13bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 28bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 27bv32 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 11bv32 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 9bv32 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 14bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: 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 - 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: 5.3s, 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, 0.7s 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...