./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer --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=/tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/lockfree-3.2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer --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-a4ecdab [2020-11-28 03:05:35,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:05:35,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:05:36,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:05:36,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:05:36,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:05:36,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:05:36,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:05:36,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:05:36,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:05:36,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:05:36,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:05:36,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:05:36,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:05:36,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:05:36,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:05:36,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:05:36,112 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:05:36,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:05:36,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:05:36,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:05:36,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:05:36,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:05:36,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:05:36,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:05:36,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:05:36,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:05:36,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:05:36,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:05:36,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:05:36,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:05:36,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:05:36,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:05:36,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:05:36,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:05:36,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:05:36,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:05:36,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:05:36,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:05:36,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:05:36,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:05:36,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-11-28 03:05:36,221 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:05:36,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:05:36,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:05:36,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:05:36,224 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:05:36,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:05:36,225 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:05:36,225 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:05:36,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:05:36,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:05:36,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:05:36,227 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:05:36,227 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:05:36,227 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:05:36,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:05:36,228 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:05:36,228 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:05:36,229 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:05:36,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:05:36,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:05:36,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:05:36,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:05:36,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:05:36,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:05:36,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:05:36,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:05:36,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:05:36,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:05:36,232 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:/tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b010fd4a87c087de2df9a8799a5c607ab9a33d5c [2020-11-28 03:05:36,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:05:36,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:05:36,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:05:36,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:05:36,603 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:05:36,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/../../sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-11-28 03:05:36,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data/d72258385/ef8fd36c74e54f5394b73b95e2a98253/FLAG7743467d1 [2020-11-28 03:05:37,361 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:05:37,368 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-11-28 03:05:37,391 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data/d72258385/ef8fd36c74e54f5394b73b95e2a98253/FLAG7743467d1 [2020-11-28 03:05:37,658 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data/d72258385/ef8fd36c74e54f5394b73b95e2a98253 [2020-11-28 03:05:37,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:05:37,663 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:05:37,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:05:37,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:05:37,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:05:37,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:37" (1/1) ... [2020-11-28 03:05:37,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28eafc04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:37, skipping insertion in model container [2020-11-28 03:05:37,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:37" (1/1) ... [2020-11-28 03:05:37,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:05:37,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:05:38,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:05:38,201 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:05:38,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:05:38,348 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:05:38,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38 WrapperNode [2020-11-28 03:05:38,349 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:05:38,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:05:38,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:05:38,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:05:38,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (1/1) ... [2020-11-28 03:05:38,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (1/1) ... [2020-11-28 03:05:38,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (1/1) ... [2020-11-28 03:05:38,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (1/1) ... [2020-11-28 03:05:38,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (1/1) ... [2020-11-28 03:05:38,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (1/1) ... [2020-11-28 03:05:38,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (1/1) ... [2020-11-28 03:05:38,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:05:38,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:05:38,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:05:38,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:05:38,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:05:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:05:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:05:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:05:38,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:05:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:05:38,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:05:38,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:05:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:05:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2020-11-28 03:05:38,539 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2020-11-28 03:05:38,540 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:05:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:05:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:05:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:05:38,542 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:05:38,543 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:05:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:05:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:05:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:05:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:05:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:05:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:05:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:05:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:05:38,549 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:05:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:05:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:05:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:05:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:05:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:05:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:05:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:05:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:05:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:05:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:05:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:05:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:05:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:05:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:05:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:05:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:05:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:05:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:05:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:05:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:05:38,557 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:05:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:05:38,558 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:05:38,559 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:05:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:05:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:05:38,560 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:05:38,561 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:05:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:05:38,562 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:05:38,563 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:05:38,564 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:05:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:05:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:05:38,566 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:05:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:05:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:05:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:05:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:05:38,568 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:05:38,569 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:05:38,570 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:05:38,571 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:05:38,572 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:05:38,573 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:05:38,574 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:05:38,575 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:05:38,576 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure push [2020-11-28 03:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:05:38,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:05:38,578 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2020-11-28 03:05:38,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:05:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:05:38,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:05:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:05:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:05:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:05:38,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:05:39,414 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:05:39,414 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-28 03:05:39,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:39 BoogieIcfgContainer [2020-11-28 03:05:39,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:05:39,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:05:39,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:05:39,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:05:39,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:05:37" (1/3) ... [2020-11-28 03:05:39,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b50cd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:05:39, skipping insertion in model container [2020-11-28 03:05:39,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:38" (2/3) ... [2020-11-28 03:05:39,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b50cd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:05:39, skipping insertion in model container [2020-11-28 03:05:39,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:39" (3/3) ... [2020-11-28 03:05:39,429 INFO L111 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2020-11-28 03:05:39,439 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:05:39,443 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-11-28 03:05:39,453 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-11-28 03:05:39,472 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:05:39,472 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:05:39,472 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:05:39,472 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:05:39,473 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:05:39,473 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:05:39,473 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:05:39,473 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:05:39,491 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-11-28 03:05:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:05:39,500 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:39,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:39,501 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]=== [2020-11-28 03:05:39,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:39,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1423840420, now seen corresponding path program 1 times [2020-11-28 03:05:39,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:39,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493694959] [2020-11-28 03:05:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:39,853 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-28 03:05:39,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:39,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493694959] [2020-11-28 03:05:39,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:39,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:05:39,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779178831] [2020-11-28 03:05:39,911 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:05:39,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:39,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:05:39,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:05:39,932 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-11-28 03:05:40,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:40,362 INFO L93 Difference]: Finished difference Result 92 states and 115 transitions. [2020-11-28 03:05:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:05:40,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 03:05:40,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:40,377 INFO L225 Difference]: With dead ends: 92 [2020-11-28 03:05:40,377 INFO L226 Difference]: Without dead ends: 89 [2020-11-28 03:05:40,379 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 [2020-11-28 03:05:40,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-11-28 03:05:40,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 71. [2020-11-28 03:05:40,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-28 03:05:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2020-11-28 03:05:40,438 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 8 [2020-11-28 03:05:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:40,439 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2020-11-28 03:05:40,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:05:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2020-11-28 03:05:40,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:05:40,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:40,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:40,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:05:40,441 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]=== [2020-11-28 03:05:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:40,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1763708013, now seen corresponding path program 1 times [2020-11-28 03:05:40,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:40,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195590297] [2020-11-28 03:05:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:40,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:40,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:40,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195590297] [2020-11-28 03:05:40,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:40,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:05:40,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580955981] [2020-11-28 03:05:40,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:05:40,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:40,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:05:40,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:05:40,671 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 4 states. [2020-11-28 03:05:41,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:41,145 INFO L93 Difference]: Finished difference Result 91 states and 114 transitions. [2020-11-28 03:05:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:05:41,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-28 03:05:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:41,150 INFO L225 Difference]: With dead ends: 91 [2020-11-28 03:05:41,150 INFO L226 Difference]: Without dead ends: 91 [2020-11-28 03:05:41,151 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 [2020-11-28 03:05:41,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-11-28 03:05:41,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 72. [2020-11-28 03:05:41,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-28 03:05:41,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2020-11-28 03:05:41,179 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 10 [2020-11-28 03:05:41,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:41,179 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2020-11-28 03:05:41,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:05:41,179 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2020-11-28 03:05:41,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 03:05:41,180 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:41,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:41,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:05:41,181 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]=== [2020-11-28 03:05:41,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:41,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1763767595, now seen corresponding path program 1 times [2020-11-28 03:05:41,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:41,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082775339] [2020-11-28 03:05:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:41,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:41,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082775339] [2020-11-28 03:05:41,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:41,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:05:41,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64525702] [2020-11-28 03:05:41,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:05:41,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:41,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:05:41,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:05:41,444 INFO L87 Difference]: Start difference. First operand 72 states and 89 transitions. Second operand 4 states. [2020-11-28 03:05:41,601 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-11-28 03:05:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:41,990 INFO L93 Difference]: Finished difference Result 135 states and 176 transitions. [2020-11-28 03:05:41,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:05:41,992 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-28 03:05:41,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:41,994 INFO L225 Difference]: With dead ends: 135 [2020-11-28 03:05:41,994 INFO L226 Difference]: Without dead ends: 135 [2020-11-28 03:05:41,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:05:41,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-11-28 03:05:42,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 108. [2020-11-28 03:05:42,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-28 03:05:42,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2020-11-28 03:05:42,024 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 153 transitions. Word has length 10 [2020-11-28 03:05:42,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:42,024 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 153 transitions. [2020-11-28 03:05:42,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:05:42,024 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2020-11-28 03:05:42,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:05:42,025 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:42,025 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:42,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:05:42,026 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]=== [2020-11-28 03:05:42,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:42,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1157780793, now seen corresponding path program 1 times [2020-11-28 03:05:42,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:42,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109644742] [2020-11-28 03:05:42,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:42,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:42,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:42,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109644742] [2020-11-28 03:05:42,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:42,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:05:42,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727716982] [2020-11-28 03:05:42,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:05:42,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:42,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:05:42,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:05:42,228 INFO L87 Difference]: Start difference. First operand 108 states and 153 transitions. Second operand 4 states. [2020-11-28 03:05:42,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:42,530 INFO L93 Difference]: Finished difference Result 149 states and 214 transitions. [2020-11-28 03:05:42,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:05:42,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:05:42,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:42,537 INFO L225 Difference]: With dead ends: 149 [2020-11-28 03:05:42,537 INFO L226 Difference]: Without dead ends: 144 [2020-11-28 03:05:42,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:05:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-28 03:05:42,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 126. [2020-11-28 03:05:42,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-28 03:05:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 183 transitions. [2020-11-28 03:05:42,576 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 183 transitions. Word has length 11 [2020-11-28 03:05:42,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:42,581 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 183 transitions. [2020-11-28 03:05:42,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:05:42,581 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 183 transitions. [2020-11-28 03:05:42,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:05:42,581 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:42,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:42,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:05:42,582 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]=== [2020-11-28 03:05:42,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:42,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1961333606, now seen corresponding path program 1 times [2020-11-28 03:05:42,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:42,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956158858] [2020-11-28 03:05:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:42,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:42,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956158858] [2020-11-28 03:05:42,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:42,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:05:42,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256405524] [2020-11-28 03:05:42,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:05:42,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:42,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:05:42,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:05:42,751 INFO L87 Difference]: Start difference. First operand 126 states and 183 transitions. Second operand 4 states. [2020-11-28 03:05:43,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:43,347 INFO L93 Difference]: Finished difference Result 220 states and 325 transitions. [2020-11-28 03:05:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:05:43,348 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 03:05:43,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:43,351 INFO L225 Difference]: With dead ends: 220 [2020-11-28 03:05:43,351 INFO L226 Difference]: Without dead ends: 220 [2020-11-28 03:05:43,352 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 [2020-11-28 03:05:43,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-11-28 03:05:43,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 193. [2020-11-28 03:05:43,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-11-28 03:05:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 298 transitions. [2020-11-28 03:05:43,393 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 298 transitions. Word has length 13 [2020-11-28 03:05:43,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:43,394 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 298 transitions. [2020-11-28 03:05:43,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:05:43,394 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 298 transitions. [2020-11-28 03:05:43,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:05:43,395 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:43,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:43,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 03:05:43,395 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]=== [2020-11-28 03:05:43,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:43,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1961333605, now seen corresponding path program 1 times [2020-11-28 03:05:43,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:43,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474918637] [2020-11-28 03:05:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:43,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:43,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:43,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474918637] [2020-11-28 03:05:43,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:43,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:05:43,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542397569] [2020-11-28 03:05:43,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:05:43,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:43,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:05:43,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:05:43,580 INFO L87 Difference]: Start difference. First operand 193 states and 298 transitions. Second operand 4 states. [2020-11-28 03:05:44,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:44,177 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2020-11-28 03:05:44,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:05:44,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 03:05:44,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:44,182 INFO L225 Difference]: With dead ends: 271 [2020-11-28 03:05:44,182 INFO L226 Difference]: Without dead ends: 271 [2020-11-28 03:05:44,182 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 [2020-11-28 03:05:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-11-28 03:05:44,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 247. [2020-11-28 03:05:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-11-28 03:05:44,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 382 transitions. [2020-11-28 03:05:44,214 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 382 transitions. Word has length 13 [2020-11-28 03:05:44,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:44,214 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 382 transitions. [2020-11-28 03:05:44,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:05:44,215 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 382 transitions. [2020-11-28 03:05:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 03:05:44,216 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:44,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:44,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 03:05:44,221 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]=== [2020-11-28 03:05:44,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:44,222 INFO L82 PathProgramCache]: Analyzing trace with hash -671792639, now seen corresponding path program 1 times [2020-11-28 03:05:44,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:44,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883188815] [2020-11-28 03:05:44,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:44,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:44,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883188815] [2020-11-28 03:05:44,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:44,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:05:44,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918961240] [2020-11-28 03:05:44,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:05:44,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:44,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:05:44,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:05:44,414 INFO L87 Difference]: Start difference. First operand 247 states and 382 transitions. Second operand 6 states. [2020-11-28 03:05:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:44,905 INFO L93 Difference]: Finished difference Result 473 states and 709 transitions. [2020-11-28 03:05:44,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:05:44,906 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 03:05:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:44,911 INFO L225 Difference]: With dead ends: 473 [2020-11-28 03:05:44,911 INFO L226 Difference]: Without dead ends: 473 [2020-11-28 03:05:44,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:05:44,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-11-28 03:05:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2020-11-28 03:05:44,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-11-28 03:05:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 675 transitions. [2020-11-28 03:05:44,945 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 675 transitions. Word has length 14 [2020-11-28 03:05:44,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:44,945 INFO L481 AbstractCegarLoop]: Abstraction has 439 states and 675 transitions. [2020-11-28 03:05:44,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:05:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 675 transitions. [2020-11-28 03:05:44,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:05:44,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:44,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:44,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 03:05:44,947 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]=== [2020-11-28 03:05:44,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:44,948 INFO L82 PathProgramCache]: Analyzing trace with hash -880304331, now seen corresponding path program 1 times [2020-11-28 03:05:44,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:44,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750468202] [2020-11-28 03:05:44,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:45,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:45,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750468202] [2020-11-28 03:05:45,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:45,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:05:45,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378924562] [2020-11-28 03:05:45,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:05:45,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:45,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:05:45,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:05:45,099 INFO L87 Difference]: Start difference. First operand 439 states and 675 transitions. Second operand 5 states. [2020-11-28 03:05:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:45,548 INFO L93 Difference]: Finished difference Result 765 states and 1122 transitions. [2020-11-28 03:05:45,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 03:05:45,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-11-28 03:05:45,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:45,558 INFO L225 Difference]: With dead ends: 765 [2020-11-28 03:05:45,558 INFO L226 Difference]: Without dead ends: 765 [2020-11-28 03:05:45,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:05:45,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2020-11-28 03:05:45,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 739. [2020-11-28 03:05:45,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-11-28 03:05:45,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1095 transitions. [2020-11-28 03:05:45,629 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1095 transitions. Word has length 15 [2020-11-28 03:05:45,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:45,629 INFO L481 AbstractCegarLoop]: Abstraction has 739 states and 1095 transitions. [2020-11-28 03:05:45,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:05:45,630 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1095 transitions. [2020-11-28 03:05:45,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:05:45,631 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:45,631 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] [2020-11-28 03:05:45,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 03:05:45,633 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]=== [2020-11-28 03:05:45,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:45,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1060051524, now seen corresponding path program 1 times [2020-11-28 03:05:45,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:45,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623822855] [2020-11-28 03:05:45,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:45,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-28 03:05:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:45,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-11-28 03:05:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:45,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623822855] [2020-11-28 03:05:45,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957969009] [2020-11-28 03:05:45,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:05:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:46,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 16 conjunts are in the unsatisfiable core [2020-11-28 03:05:46,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:05:46,498 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:05:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:46,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 03:05:46,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2020-11-28 03:05:46,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502087392] [2020-11-28 03:05:46,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 03:05:46,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:05:46,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 03:05:46,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-11-28 03:05:46,508 INFO L87 Difference]: Start difference. First operand 739 states and 1095 transitions. Second operand 12 states. [2020-11-28 03:05:46,799 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-28 03:05:47,142 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2020-11-28 03:05:47,527 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-11-28 03:05:49,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:49,625 INFO L93 Difference]: Finished difference Result 2291 states and 3424 transitions. [2020-11-28 03:05:49,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-11-28 03:05:49,626 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-11-28 03:05:49,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:49,645 INFO L225 Difference]: With dead ends: 2291 [2020-11-28 03:05:49,646 INFO L226 Difference]: Without dead ends: 2291 [2020-11-28 03:05:49,647 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=212, Invalid=780, Unknown=0, NotChecked=0, Total=992 [2020-11-28 03:05:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2020-11-28 03:05:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2147. [2020-11-28 03:05:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2147 states. [2020-11-28 03:05:49,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 3195 transitions. [2020-11-28 03:05:49,831 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 3195 transitions. Word has length 22 [2020-11-28 03:05:49,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:49,831 INFO L481 AbstractCegarLoop]: Abstraction has 2147 states and 3195 transitions. [2020-11-28 03:05:49,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 03:05:49,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 3195 transitions. [2020-11-28 03:05:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 03:05:49,839 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:49,839 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] [2020-11-28 03:05:50,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-11-28 03:05:50,058 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]=== [2020-11-28 03:05:50,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:50,059 INFO L82 PathProgramCache]: Analyzing trace with hash 38983170, now seen corresponding path program 1 times [2020-11-28 03:05:50,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:05:50,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781886078] [2020-11-28 03:05:50,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:05:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:05:50,101 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:05:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:05:50,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:05:50,181 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:05:50,181 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:05:50,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 03:05:50,224 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-28 03:05:50,253 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 [2020-11-28 03:05:50,266 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 [2020-11-28 03:05:50,268 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 [2020-11-28 03:05:50,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:05:50 BoogieIcfgContainer [2020-11-28 03:05:50,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:05:50,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:05:50,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:05:50,285 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:05:50,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:39" (3/4) ... [2020-11-28 03:05:50,290 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:05:50,290 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:05:50,292 INFO L168 Benchmark]: Toolchain (without parser) took 12628.45 ms. Allocated memory was 88.1 MB in the beginning and 176.2 MB in the end (delta: 88.1 MB). Free memory was 55.4 MB in the beginning and 124.4 MB in the end (delta: -68.9 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:50,293 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 88.1 MB. Free memory was 46.2 MB in the beginning and 46.2 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:05:50,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.59 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 55.2 MB in the beginning and 75.6 MB in the end (delta: -20.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:50,299 INFO L168 Benchmark]: Boogie Preprocessor took 87.59 ms. Allocated memory is still 111.1 MB. Free memory was 75.6 MB in the beginning and 72.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:50,301 INFO L168 Benchmark]: RCFGBuilder took 978.15 ms. Allocated memory is still 111.1 MB. Free memory was 72.7 MB in the beginning and 72.9 MB in the end (delta: -248.6 kB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:50,302 INFO L168 Benchmark]: TraceAbstraction took 10865.94 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 72.9 MB in the beginning and 125.4 MB in the end (delta: -52.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:50,303 INFO L168 Benchmark]: Witness Printer took 5.17 ms. Allocated memory is still 176.2 MB. Free memory was 125.4 MB in the beginning and 124.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:05:50,314 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 88.1 MB. Free memory was 46.2 MB in the beginning and 46.2 MB in the end (delta: 67.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 684.59 ms. Allocated memory was 88.1 MB in the beginning and 111.1 MB in the end (delta: 23.1 MB). Free memory was 55.2 MB in the beginning and 75.6 MB in the end (delta: -20.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.59 ms. Allocated memory is still 111.1 MB. Free memory was 75.6 MB in the beginning and 72.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 978.15 ms. Allocated memory is still 111.1 MB. Free memory was 72.7 MB in the beginning and 72.9 MB in the end (delta: -248.6 kB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10865.94 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 72.9 MB in the beginning and 125.4 MB in the end (delta: -52.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Witness Printer took 5.17 ms. Allocated memory is still 176.2 MB. Free memory was 125.4 MB in the beginning and 124.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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)=66, \old(garbage)=60, \old(pc1)=53, \old(pc4)=67, \old(res4)=54, \old(S)=50, \old(S)=55, \old(t1)=72, \old(t1)=61, \old(t4)=52, \old(t4)=58, \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: 10.7s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 7.1s, 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, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 3.4s 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: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 337 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s 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-a4ecdab [2020-11-28 03:05:53,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:05:53,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:05:53,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:05:53,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:05:53,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:05:53,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:05:53,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:05:53,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:05:53,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:05:53,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:05:53,243 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:05:53,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:05:53,248 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:05:53,250 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:05:53,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:05:53,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:05:53,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:05:53,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:05:53,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:05:53,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:05:53,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:05:53,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:05:53,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:05:53,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:05:53,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:05:53,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:05:53,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:05:53,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:05:53,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:05:53,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:05:53,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:05:53,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:05:53,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:05:53,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:05:53,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:05:53,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:05:53,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:05:53,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:05:53,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:05:53,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:05:53,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-11-28 03:05:53,367 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:05:53,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:05:53,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:05:53,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:05:53,371 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:05:53,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:05:53,372 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:05:53,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:05:53,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:05:53,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:05:53,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:05:53,374 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 03:05:53,375 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 03:05:53,375 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 03:05:53,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:05:53,375 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 03:05:53,376 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:05:53,376 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:05:53,376 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:05:53,377 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:05:53,377 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:05:53,377 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:05:53,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:05:53,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:05:53,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:05:53,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:05:53,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:05:53,379 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:05:53,379 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:05:53,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:05:53,380 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:05:53,380 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:/tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b010fd4a87c087de2df9a8799a5c607ab9a33d5c [2020-11-28 03:05:53,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:05:53,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:05:53,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:05:53,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:05:53,934 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:05:53,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/../../sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-11-28 03:05:54,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data/8c323b436/98eeed965a94467fa122afd5232acdce/FLAG5b262b710 [2020-11-28 03:05:54,669 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:05:54,670 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/sv-benchmarks/c/memsafety/lockfree-3.2.i [2020-11-28 03:05:54,689 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data/8c323b436/98eeed965a94467fa122afd5232acdce/FLAG5b262b710 [2020-11-28 03:05:54,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/data/8c323b436/98eeed965a94467fa122afd5232acdce [2020-11-28 03:05:54,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:05:54,935 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-28 03:05:54,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:05:54,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:05:54,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:05:54,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:54" (1/1) ... [2020-11-28 03:05:54,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89d1d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:54, skipping insertion in model container [2020-11-28 03:05:54,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:05:54" (1/1) ... [2020-11-28 03:05:54,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:05:55,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:05:55,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:05:55,532 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:05:55,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:05:55,693 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:05:55,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55 WrapperNode [2020-11-28 03:05:55,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:05:55,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:05:55,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:05:55,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:05:55,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (1/1) ... [2020-11-28 03:05:55,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (1/1) ... [2020-11-28 03:05:55,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (1/1) ... [2020-11-28 03:05:55,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (1/1) ... [2020-11-28 03:05:55,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (1/1) ... [2020-11-28 03:05:55,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (1/1) ... [2020-11-28 03:05:55,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (1/1) ... [2020-11-28 03:05:55,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:05:55,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:05:55,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:05:55,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:05:55,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:05:55,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-28 03:05:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:05:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:05:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-28 03:05:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-11-28 03:05:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-11-28 03:05:55,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-11-28 03:05:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-11-28 03:05:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-11-28 03:05:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure push [2020-11-28 03:05:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pop [2020-11-28 03:05:55,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-28 03:05:55,906 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-28 03:05:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-28 03:05:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-28 03:05:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-28 03:05:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-28 03:05:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:05:55,907 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-28 03:05:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-28 03:05:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-28 03:05:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-28 03:05:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-28 03:05:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-28 03:05:55,908 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-28 03:05:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-28 03:05:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-28 03:05:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-28 03:05:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-28 03:05:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-28 03:05:55,909 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-28 03:05:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-28 03:05:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-28 03:05:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-28 03:05:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-11-28 03:05:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-11-28 03:05:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-11-28 03:05:55,910 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-11-28 03:05:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-11-28 03:05:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-28 03:05:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-28 03:05:55,911 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-28 03:05:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-28 03:05:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-28 03:05:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-28 03:05:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-28 03:05:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-28 03:05:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-28 03:05:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-28 03:05:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-28 03:05:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-28 03:05:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-28 03:05:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-28 03:05:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-28 03:05:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-28 03:05:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-28 03:05:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-28 03:05:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-28 03:05:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-28 03:05:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-28 03:05:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-28 03:05:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-28 03:05:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-28 03:05:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-28 03:05:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-28 03:05:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-28 03:05:55,936 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-28 03:05:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-28 03:05:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-28 03:05:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-28 03:05:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-28 03:05:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-28 03:05:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-28 03:05:55,937 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-28 03:05:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-28 03:05:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-28 03:05:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-28 03:05:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-28 03:05:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-28 03:05:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-28 03:05:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-28 03:05:55,938 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-28 03:05:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-28 03:05:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-28 03:05:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-28 03:05:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-28 03:05:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-28 03:05:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-28 03:05:55,939 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-28 03:05:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-28 03:05:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-28 03:05:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-28 03:05:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-28 03:05:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-28 03:05:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-28 03:05:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-28 03:05:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-28 03:05:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-28 03:05:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-28 03:05:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-28 03:05:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-28 03:05:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-28 03:05:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-28 03:05:55,941 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-28 03:05:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-28 03:05:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-28 03:05:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-28 03:05:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-28 03:05:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-28 03:05:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-28 03:05:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-28 03:05:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-28 03:05:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-28 03:05:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-28 03:05:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-28 03:05:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-28 03:05:55,943 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-28 03:05:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-28 03:05:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-28 03:05:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-28 03:05:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-28 03:05:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-28 03:05:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-28 03:05:55,944 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-28 03:05:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-28 03:05:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure push [2020-11-28 03:05:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:05:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:05:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:05:55,945 INFO L130 BoogieDeclarations]: Found specification of procedure pop [2020-11-28 03:05:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 03:05:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:05:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-28 03:05:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:05:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-28 03:05:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:05:55,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:05:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2020-11-28 03:05:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-11-28 03:05:55,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-11-28 03:05:57,016 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:05:57,017 INFO L298 CfgBuilder]: Removed 2 assume(true) statements. [2020-11-28 03:05:57,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:57 BoogieIcfgContainer [2020-11-28 03:05:57,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:05:57,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:05:57,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:05:57,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:05:57,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:05:54" (1/3) ... [2020-11-28 03:05:57,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea67fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:05:57, skipping insertion in model container [2020-11-28 03:05:57,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:05:55" (2/3) ... [2020-11-28 03:05:57,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea67fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:05:57, skipping insertion in model container [2020-11-28 03:05:57,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:57" (3/3) ... [2020-11-28 03:05:57,028 INFO L111 eAbstractionObserver]: Analyzing ICFG lockfree-3.2.i [2020-11-28 03:05:57,041 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:05:57,047 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-11-28 03:05:57,061 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-11-28 03:05:57,085 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:05:57,085 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 03:05:57,085 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:05:57,085 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:05:57,085 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:05:57,086 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:05:57,086 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:05:57,086 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:05:57,101 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-11-28 03:05:57,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:05:57,109 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:57,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:57,110 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]=== [2020-11-28 03:05:57,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:57,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1937878524, now seen corresponding path program 1 times [2020-11-28 03:05:57,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:05:57,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824326520] [2020-11-28 03:05:57,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:05:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:57,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 03:05:57,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:05:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:57,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:05:57,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:57,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824326520] [2020-11-28 03:05:57,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:57,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:05:57,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873854545] [2020-11-28 03:05:57,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:05:57,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:05:57,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:05:57,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:05:57,546 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2020-11-28 03:05:57,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:57,591 INFO L93 Difference]: Finished difference Result 72 states and 88 transitions. [2020-11-28 03:05:57,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:05:57,592 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-28 03:05:57,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:57,615 INFO L225 Difference]: With dead ends: 72 [2020-11-28 03:05:57,616 INFO L226 Difference]: Without dead ends: 69 [2020-11-28 03:05:57,617 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 [2020-11-28 03:05:57,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-11-28 03:05:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-11-28 03:05:57,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-11-28 03:05:57,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 85 transitions. [2020-11-28 03:05:57,684 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 85 transitions. Word has length 8 [2020-11-28 03:05:57,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:57,685 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 85 transitions. [2020-11-28 03:05:57,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:05:57,685 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2020-11-28 03:05:57,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 03:05:57,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:57,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:57,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:05:57,894 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]=== [2020-11-28 03:05:57,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:57,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1937866992, now seen corresponding path program 1 times [2020-11-28 03:05:57,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:05:57,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1429600097] [2020-11-28 03:05:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:05:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:58,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-28 03:05:58,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:05:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:58,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:05:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:58,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1429600097] [2020-11-28 03:05:58,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:58,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-28 03:05:58,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815707619] [2020-11-28 03:05:58,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:05:58,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:05:58,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:05:58,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:05:58,336 INFO L87 Difference]: Start difference. First operand 69 states and 85 transitions. Second operand 3 states. [2020-11-28 03:05:58,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:58,447 INFO L93 Difference]: Finished difference Result 120 states and 153 transitions. [2020-11-28 03:05:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:05:58,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-28 03:05:58,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:58,452 INFO L225 Difference]: With dead ends: 120 [2020-11-28 03:05:58,452 INFO L226 Difference]: Without dead ends: 120 [2020-11-28 03:05:58,453 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 [2020-11-28 03:05:58,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-11-28 03:05:58,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 102. [2020-11-28 03:05:58,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-28 03:05:58,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 145 transitions. [2020-11-28 03:05:58,496 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 145 transitions. Word has length 8 [2020-11-28 03:05:58,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:58,497 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 145 transitions. [2020-11-28 03:05:58,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:05:58,497 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2020-11-28 03:05:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 03:05:58,500 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:58,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:58,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:05:58,704 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, popErr4REQUIRES_VIOLATION, popErr3REQUIRES_VIOLATION, popErr2REQUIRES_VIOLATION, popErr1REQUIRES_VIOLATION, popErr0REQUIRES_VIOLATION, popErr5REQUIRES_VIOLATION, mainErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr2ASSERT_VIOLATIONMEMORY_FREE, mainErr5ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr1REQUIRES_VIOLATION, pushErr4REQUIRES_VIOLATION, pushErr3REQUIRES_VIOLATION, pushErr2REQUIRES_VIOLATION, pushErr7REQUIRES_VIOLATION, pushErr1REQUIRES_VIOLATION, pushErr6REQUIRES_VIOLATION, pushErr0REQUIRES_VIOLATION, pushErr5REQUIRES_VIOLATION]=== [2020-11-28 03:05:58,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:58,704 INFO L82 PathProgramCache]: Analyzing trace with hash -55666767, now seen corresponding path program 1 times [2020-11-28 03:05:58,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:05:58,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87099601] [2020-11-28 03:05:58,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:05:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:58,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:05:58,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:05:59,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:59,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:05:59,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:59,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87099601] [2020-11-28 03:05:59,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:59,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:05:59,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518696003] [2020-11-28 03:05:59,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:05:59,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:05:59,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:05:59,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:05:59,027 INFO L87 Difference]: Start difference. First operand 102 states and 145 transitions. Second operand 3 states. [2020-11-28 03:05:59,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:05:59,258 INFO L93 Difference]: Finished difference Result 128 states and 182 transitions. [2020-11-28 03:05:59,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:05:59,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-28 03:05:59,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:05:59,262 INFO L225 Difference]: With dead ends: 128 [2020-11-28 03:05:59,263 INFO L226 Difference]: Without dead ends: 125 [2020-11-28 03:05:59,263 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 [2020-11-28 03:05:59,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-28 03:05:59,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 115. [2020-11-28 03:05:59,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-28 03:05:59,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2020-11-28 03:05:59,281 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 9 [2020-11-28 03:05:59,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:05:59,282 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2020-11-28 03:05:59,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:05:59,282 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2020-11-28 03:05:59,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:05:59,283 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:05:59,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:05:59,499 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:05:59,500 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]=== [2020-11-28 03:05:59,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:05:59,501 INFO L82 PathProgramCache]: Analyzing trace with hash -1911661939, now seen corresponding path program 1 times [2020-11-28 03:05:59,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:05:59,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481228051] [2020-11-28 03:05:59,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:05:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:05:59,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:05:59,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:05:59,871 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 [2020-11-28 03:05:59,871 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:05:59,875 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:05:59,876 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:05:59,876 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2020-11-28 03:05:59,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:59,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:05:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:05:59,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481228051] [2020-11-28 03:05:59,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:05:59,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:05:59,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812463213] [2020-11-28 03:05:59,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:05:59,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:05:59,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:05:59,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:05:59,903 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2020-11-28 03:06:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:00,106 INFO L93 Difference]: Finished difference Result 198 states and 290 transitions. [2020-11-28 03:06:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:06:00,107 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-28 03:06:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:00,111 INFO L225 Difference]: With dead ends: 198 [2020-11-28 03:06:00,111 INFO L226 Difference]: Without dead ends: 198 [2020-11-28 03:06:00,111 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 [2020-11-28 03:06:00,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-11-28 03:06:00,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 177. [2020-11-28 03:06:00,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-11-28 03:06:00,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 276 transitions. [2020-11-28 03:06:00,134 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 276 transitions. Word has length 11 [2020-11-28 03:06:00,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:00,134 INFO L481 AbstractCegarLoop]: Abstraction has 177 states and 276 transitions. [2020-11-28 03:06:00,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:06:00,134 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 276 transitions. [2020-11-28 03:06:00,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 03:06:00,135 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:00,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:00,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 03:06:00,350 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]=== [2020-11-28 03:06:00,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:00,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1911661938, now seen corresponding path program 1 times [2020-11-28 03:06:00,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:06:00,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886774404] [2020-11-28 03:06:00,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:06:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:00,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:06:00,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:00,646 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 [2020-11-28 03:06:00,647 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-28 03:06:00,657 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-28 03:06:00,658 INFO L545 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-28 03:06:00,658 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2020-11-28 03:06:00,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:00,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:06:00,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:00,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886774404] [2020-11-28 03:06:00,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:06:00,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-28 03:06:00,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459038964] [2020-11-28 03:06:00,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:06:00,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:06:00,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:06:00,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:06:00,746 INFO L87 Difference]: Start difference. First operand 177 states and 276 transitions. Second operand 4 states. [2020-11-28 03:06:01,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:01,247 INFO L93 Difference]: Finished difference Result 333 states and 499 transitions. [2020-11-28 03:06:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:06:01,250 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-28 03:06:01,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:01,255 INFO L225 Difference]: With dead ends: 333 [2020-11-28 03:06:01,255 INFO L226 Difference]: Without dead ends: 333 [2020-11-28 03:06:01,255 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 [2020-11-28 03:06:01,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-11-28 03:06:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 295. [2020-11-28 03:06:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2020-11-28 03:06:01,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 472 transitions. [2020-11-28 03:06:01,314 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 472 transitions. Word has length 11 [2020-11-28 03:06:01,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:01,314 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 472 transitions. [2020-11-28 03:06:01,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:06:01,315 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 472 transitions. [2020-11-28 03:06:01,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 03:06:01,316 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:01,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:01,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-28 03:06:01,530 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]=== [2020-11-28 03:06:01,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:01,531 INFO L82 PathProgramCache]: Analyzing trace with hash 868029060, now seen corresponding path program 1 times [2020-11-28 03:06:01,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:06:01,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197601951] [2020-11-28 03:06:01,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:06:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:01,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:06:01,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:01,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:06:01,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:01,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197601951] [2020-11-28 03:06:01,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:06:01,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 03:06:01,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755219053] [2020-11-28 03:06:01,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:06:01,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:06:01,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:06:01,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:06:01,810 INFO L87 Difference]: Start difference. First operand 295 states and 472 transitions. Second operand 4 states. [2020-11-28 03:06:01,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:01,871 INFO L93 Difference]: Finished difference Result 212 states and 298 transitions. [2020-11-28 03:06:01,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:06:01,872 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-28 03:06:01,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:01,874 INFO L225 Difference]: With dead ends: 212 [2020-11-28 03:06:01,874 INFO L226 Difference]: Without dead ends: 212 [2020-11-28 03:06:01,875 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 [2020-11-28 03:06:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-28 03:06:01,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 181. [2020-11-28 03:06:01,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-11-28 03:06:01,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 271 transitions. [2020-11-28 03:06:01,902 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 271 transitions. Word has length 12 [2020-11-28 03:06:01,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:01,903 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 271 transitions. [2020-11-28 03:06:01,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:06:01,903 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 271 transitions. [2020-11-28 03:06:01,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:06:01,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:01,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:02,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-28 03:06:02,128 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]=== [2020-11-28 03:06:02,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:02,128 INFO L82 PathProgramCache]: Analyzing trace with hash -390471896, now seen corresponding path program 1 times [2020-11-28 03:06:02,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:06:02,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356347990] [2020-11-28 03:06:02,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:06:02,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:06:02,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:06:02,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:06:02,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:02,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:06:02,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:06:02,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356347990] [2020-11-28 03:06:02,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:06:02,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-28 03:06:02,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618106604] [2020-11-28 03:06:02,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:06:02,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:06:02,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:06:02,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:06:02,418 INFO L87 Difference]: Start difference. First operand 181 states and 271 transitions. Second operand 4 states. [2020-11-28 03:06:02,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:06:02,499 INFO L93 Difference]: Finished difference Result 281 states and 404 transitions. [2020-11-28 03:06:02,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:06:02,500 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-28 03:06:02,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:06:02,505 INFO L225 Difference]: With dead ends: 281 [2020-11-28 03:06:02,507 INFO L226 Difference]: Without dead ends: 281 [2020-11-28 03:06:02,508 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 [2020-11-28 03:06:02,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-28 03:06:02,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-11-28 03:06:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-11-28 03:06:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 404 transitions. [2020-11-28 03:06:02,539 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 404 transitions. Word has length 13 [2020-11-28 03:06:02,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:06:02,539 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 404 transitions. [2020-11-28 03:06:02,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:06:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 404 transitions. [2020-11-28 03:06:02,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 03:06:02,542 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:06:02,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:06:02,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-28 03:06:02,758 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]=== [2020-11-28 03:06:02,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:06:02,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1606966587, now seen corresponding path program 1 times [2020-11-28 03:06:02,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:06:02,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800951054] [2020-11-28 03:06:02,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_193939a6-f4b4-474e-977a-57683835537d/bin/uautomizer/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 [2020-11-28 03:06:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:06:03,029 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:06:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:06:03,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:06:03,258 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:06:03,259 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:06:03,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-28 03:06:03,527 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2020-11-28 03:06:03,536 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 28bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,536 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,536 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 13bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,537 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 9bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,537 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 24bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,537 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 22bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,537 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 21bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,538 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 14bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,538 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 18bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,538 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 11bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,538 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 27bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,538 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 12bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,541 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,541 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,541 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,542 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,542 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,542 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,542 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,542 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,543 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,543 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,543 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,543 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,545 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,546 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,546 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,546 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,546 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,546 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,547 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 [2020-11-28 03:06:03,547 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,547 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,547 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,548 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,548 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,548 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,550 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,550 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,550 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,551 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 [2020-11-28 03:06:03,551 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,551 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,551 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,551 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,552 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,552 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,552 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,552 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,552 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,554 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,554 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,554 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,555 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,555 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,555 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 [2020-11-28 03:06:03,555 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,556 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,556 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,556 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,556 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,556 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,557 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,558 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,558 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,559 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,559 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,559 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,559 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,559 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,560 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,560 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,560 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,560 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,561 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,562 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,562 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,563 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,563 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,563 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,563 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,564 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,564 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,564 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,564 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,564 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,565 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,566 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,566 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,567 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,567 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,567 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,567 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,568 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,568 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,568 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,568 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,568 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,569 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell [2020-11-28 03:06:03,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:06:03 BoogieIcfgContainer [2020-11-28 03:06:03,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:06:03,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:06:03,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:06:03,585 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:06:03,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:05:57" (3/4) ... [2020-11-28 03:06:03,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:06:03,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:06:03,591 INFO L168 Benchmark]: Toolchain (without parser) took 8655.77 ms. Allocated memory was 65.0 MB in the beginning and 134.2 MB in the end (delta: 69.2 MB). Free memory was 46.9 MB in the beginning and 38.1 MB in the end (delta: 8.8 MB). Peak memory consumption was 79.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:03,592 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 65.0 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:03,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 758.92 ms. Allocated memory is still 65.0 MB. Free memory was 46.7 MB in the beginning and 35.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:03,593 INFO L168 Benchmark]: Boogie Preprocessor took 128.35 ms. Allocated memory is still 65.0 MB. Free memory was 35.7 MB in the beginning and 32.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:03,594 INFO L168 Benchmark]: RCFGBuilder took 1191.96 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 32.3 MB in the beginning and 69.7 MB in the end (delta: -37.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:03,595 INFO L168 Benchmark]: TraceAbstraction took 6563.09 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 69.7 MB in the beginning and 39.2 MB in the end (delta: 30.5 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:03,595 INFO L168 Benchmark]: Witness Printer took 4.98 ms. Allocated memory is still 134.2 MB. Free memory was 39.2 MB in the beginning and 38.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:03,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 65.0 MB. Free memory is still 47.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 758.92 ms. Allocated memory is still 65.0 MB. Free memory was 46.7 MB in the beginning and 35.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 128.35 ms. Allocated memory is still 65.0 MB. Free memory was 35.7 MB in the beginning and 32.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1191.96 ms. Allocated memory was 65.0 MB in the beginning and 92.3 MB in the end (delta: 27.3 MB). Free memory was 32.3 MB in the beginning and 69.7 MB in the end (delta: -37.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6563.09 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 69.7 MB in the beginning and 39.2 MB in the end (delta: 30.5 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.98 ms. Allocated memory is still 134.2 MB. Free memory was 39.2 MB in the beginning and 38.1 MB in the end (delta: 1.0 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: BitvecLiteral 28bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 17bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 13bv32 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 24bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 22bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 21bv32 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 18bv32 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 27bv32 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 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch6 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType *cell - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: 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 * 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: 6.4s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, 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, 0.8s 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 118 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s 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...