./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 27142e71f3089c5c3b5bf4f358882e993f701ffc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 10:21:05,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:21:05,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:21:05,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:21:05,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:21:05,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:21:05,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:21:05,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:21:05,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:21:05,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:21:05,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:21:05,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:21:05,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:21:05,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:21:05,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:21:05,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:21:05,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:21:05,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:21:05,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:21:05,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:21:05,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:21:05,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:21:05,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:21:05,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:21:05,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:21:05,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:21:05,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:21:05,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:21:05,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:21:05,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:21:05,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:21:05,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:21:05,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:21:05,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:21:05,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:21:05,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:21:05,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:21:05,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:21:05,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:21:05,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:21:05,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:21:05,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2019-11-20 10:21:05,272 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:21:05,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:21:05,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:21:05,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:21:05,275 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:21:05,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:21:05,276 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:21:05,276 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:21:05,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:21:05,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:21:05,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:21:05,278 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 10:21:05,278 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 10:21:05,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:21:05,279 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:21:05,279 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:21:05,279 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:21:05,280 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:21:05,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:21:05,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:21:05,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:21:05,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:21:05,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:21:05,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:21:05,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:21:05,282 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:21:05,282 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:21:05,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:21:05,283 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/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-memcleanup) ) 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 -> 27142e71f3089c5c3b5bf4f358882e993f701ffc [2019-11-20 10:21:05,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:21:05,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:21:05,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:21:05,533 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:21:05,533 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:21:05,534 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2019-11-20 10:21:05,608 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/data/8ee39f0f5/e56f01eddb2742c1a0d243d61465be3d/FLAG2a50bc9de [2019-11-20 10:21:06,135 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:21:06,136 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2019-11-20 10:21:06,149 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/data/8ee39f0f5/e56f01eddb2742c1a0d243d61465be3d/FLAG2a50bc9de [2019-11-20 10:21:06,493 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/data/8ee39f0f5/e56f01eddb2742c1a0d243d61465be3d [2019-11-20 10:21:06,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:21:06,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 10:21:06,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:21:06,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:21:06,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:21:06,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:21:06" (1/1) ... [2019-11-20 10:21:06,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e38e14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:06, skipping insertion in model container [2019-11-20 10:21:06,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:21:06" (1/1) ... [2019-11-20 10:21:06,521 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:21:06,565 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:21:07,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:21:07,153 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:21:07,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:21:07,284 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:21:07,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07 WrapperNode [2019-11-20 10:21:07,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:21:07,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:21:07,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:21:07,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:21:07,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (1/1) ... [2019-11-20 10:21:07,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (1/1) ... [2019-11-20 10:21:07,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (1/1) ... [2019-11-20 10:21:07,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (1/1) ... [2019-11-20 10:21:07,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (1/1) ... [2019-11-20 10:21:07,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (1/1) ... [2019-11-20 10:21:07,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (1/1) ... [2019-11-20 10:21:07,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:21:07,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:21:07,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:21:07,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:21:07,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/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 [2019-11-20 10:21:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 10:21:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:21:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 10:21:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 10:21:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2019-11-20 10:21:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_create [2019-11-20 10:21:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_length [2019-11-20 10:21:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_destroy [2019-11-20 10:21:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sll_insert [2019-11-20 10:21:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_nondet_int [2019-11-20 10:21:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 10:21:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-20 10:21:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 10:21:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 10:21:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 10:21:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 10:21:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 10:21:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 10:21:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 10:21:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 10:21:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 10:21:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 10:21:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 10:21:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 10:21:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 10:21:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 10:21:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 10:21:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 10:21:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 10:21:07,449 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 10:21:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 10:21:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 10:21:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 10:21:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 10:21:07,450 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 10:21:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 10:21:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 10:21:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 10:21:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 10:21:07,451 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 10:21:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 10:21:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 10:21:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 10:21:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 10:21:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 10:21:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 10:21:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 10:21:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 10:21:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 10:21:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 10:21:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 10:21:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 10:21:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 10:21:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 10:21:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 10:21:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 10:21:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 10:21:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 10:21:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 10:21:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 10:21:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 10:21:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 10:21:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 10:21:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 10:21:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 10:21:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 10:21:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 10:21:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 10:21:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 10:21:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2019-11-20 10:21:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 10:21:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 10:21:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 10:21:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 10:21:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 10:21:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 10:21:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 10:21:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 10:21:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 10:21:07,465 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 10:21:07,466 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 10:21:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 10:21:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 10:21:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 10:21:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 10:21:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 10:21:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 10:21:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 10:21:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 10:21:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 10:21:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 10:21:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 10:21:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 10:21:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 10:21:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 10:21:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 10:21:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 10:21:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 10:21:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 10:21:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 10:21:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 10:21:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 10:21:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 10:21:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 10:21:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 10:21:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 10:21:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 10:21:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 10:21:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 10:21:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 10:21:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 10:21:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 10:21:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 10:21:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 10:21:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 10:21:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 10:21:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 10:21:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 10:21:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2019-11-20 10:21:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure sll_create [2019-11-20 10:21:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 10:21:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 10:21:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure sll_length [2019-11-20 10:21:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 10:21:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure sll_destroy [2019-11-20 10:21:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:21:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure sll_insert [2019-11-20 10:21:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure _get_nondet_int [2019-11-20 10:21:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 10:21:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:21:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 10:21:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 10:21:07,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:21:07,877 INFO L689 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2019-11-20 10:21:08,423 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:21:08,428 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 10:21:08,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:21:08 BoogieIcfgContainer [2019-11-20 10:21:08,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:21:08,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:21:08,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:21:08,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:21:08,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:21:06" (1/3) ... [2019-11-20 10:21:08,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c50c4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:21:08, skipping insertion in model container [2019-11-20 10:21:08,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:21:07" (2/3) ... [2019-11-20 10:21:08,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c50c4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:21:08, skipping insertion in model container [2019-11-20 10:21:08,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:21:08" (3/3) ... [2019-11-20 10:21:08,451 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_nondet_insert-1.i [2019-11-20 10:21:08,462 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:21:08,470 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 24 error locations. [2019-11-20 10:21:08,479 INFO L249 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2019-11-20 10:21:08,498 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:21:08,498 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 10:21:08,498 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:21:08,498 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:21:08,499 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:21:08,499 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:21:08,499 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:21:08,499 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:21:08,517 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2019-11-20 10:21:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 10:21:08,526 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:21:08,527 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:21:08,527 INFO L410 AbstractCegarLoop]: === Iteration 1 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-11-20 10:21:08,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:21:08,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1102659065, now seen corresponding path program 1 times [2019-11-20 10:21:08,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:21:08,543 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1038841770] [2019-11-20 10:21:08,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:21:08,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:21:08,841 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:21:08,910 INFO L377 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 [2019-11-20 10:21:08,910 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:21:08,923 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:21:08,923 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:21:08,924 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 10:21:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:08,939 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:21:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:08,957 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1038841770] [2019-11-20 10:21:08,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:21:08,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 10:21:08,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722915479] [2019-11-20 10:21:08,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:21:08,967 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:21:08,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:21:08,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:21:08,989 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 3 states. [2019-11-20 10:21:09,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:21:09,155 INFO L93 Difference]: Finished difference Result 104 states and 115 transitions. [2019-11-20 10:21:09,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:21:09,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-20 10:21:09,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:21:09,169 INFO L225 Difference]: With dead ends: 104 [2019-11-20 10:21:09,169 INFO L226 Difference]: Without dead ends: 96 [2019-11-20 10:21:09,171 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:21:09,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-20 10:21:09,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 91. [2019-11-20 10:21:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-20 10:21:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2019-11-20 10:21:09,228 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 18 [2019-11-20 10:21:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:21:09,230 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2019-11-20 10:21:09,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:21:09,230 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2019-11-20 10:21:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 10:21:09,232 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:21:09,232 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:21:09,435 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:09,436 INFO L410 AbstractCegarLoop]: === Iteration 2 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-11-20 10:21:09,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:21:09,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1102659066, now seen corresponding path program 1 times [2019-11-20 10:21:09,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:21:09,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1116796378] [2019-11-20 10:21:09,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:21:09,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 10:21:09,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:21:09,706 INFO L377 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 [2019-11-20 10:21:09,706 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:21:09,719 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:21:09,719 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:21:09,720 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-20 10:21:09,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:09,738 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:21:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:09,803 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1116796378] [2019-11-20 10:21:09,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:21:09,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-20 10:21:09,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226654155] [2019-11-20 10:21:09,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:21:09,805 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:21:09,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:21:09,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:21:09,806 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand 4 states. [2019-11-20 10:21:10,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:21:10,154 INFO L93 Difference]: Finished difference Result 95 states and 104 transitions. [2019-11-20 10:21:10,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:21:10,155 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-11-20 10:21:10,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:21:10,158 INFO L225 Difference]: With dead ends: 95 [2019-11-20 10:21:10,158 INFO L226 Difference]: Without dead ends: 95 [2019-11-20 10:21:10,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:21:10,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-20 10:21:10,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 90. [2019-11-20 10:21:10,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-11-20 10:21:10,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2019-11-20 10:21:10,185 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 18 [2019-11-20 10:21:10,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:21:10,185 INFO L462 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2019-11-20 10:21:10,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:21:10,186 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2019-11-20 10:21:10,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-20 10:21:10,187 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:21:10,188 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:21:10,392 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:10,392 INFO L410 AbstractCegarLoop]: === Iteration 3 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-11-20 10:21:10,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:21:10,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1129535676, now seen corresponding path program 1 times [2019-11-20 10:21:10,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:21:10,394 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1833065644] [2019-11-20 10:21:10,394 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:21:10,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 10:21:10,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:21:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:10,791 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:21:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:21:11,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1833065644] [2019-11-20 10:21:11,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 10:21:11,215 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2019-11-20 10:21:11,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958171727] [2019-11-20 10:21:11,218 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 10:21:11,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:21:11,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 10:21:11,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-11-20 10:21:11,221 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand 9 states. [2019-11-20 10:21:11,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:21:11,594 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2019-11-20 10:21:11,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 10:21:11,596 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2019-11-20 10:21:11,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:21:11,599 INFO L225 Difference]: With dead ends: 121 [2019-11-20 10:21:11,599 INFO L226 Difference]: Without dead ends: 121 [2019-11-20 10:21:11,600 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2019-11-20 10:21:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-20 10:21:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 101. [2019-11-20 10:21:11,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-20 10:21:11,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 114 transitions. [2019-11-20 10:21:11,642 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 114 transitions. Word has length 29 [2019-11-20 10:21:11,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:21:11,643 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 114 transitions. [2019-11-20 10:21:11,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 10:21:11,643 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 114 transitions. [2019-11-20 10:21:11,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 10:21:11,647 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:21:11,647 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:21:11,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:11,850 INFO L410 AbstractCegarLoop]: === Iteration 4 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-11-20 10:21:11,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:21:11,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1631709036, now seen corresponding path program 1 times [2019-11-20 10:21:11,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:21:11,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1144738271] [2019-11-20 10:21:11,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:21:12,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 10:21:12,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:21:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:12,314 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:21:12,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:21:12,722 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1144738271] [2019-11-20 10:21:12,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 10:21:12,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-11-20 10:21:12,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22747550] [2019-11-20 10:21:12,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-20 10:21:12,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:21:12,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-20 10:21:12,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2019-11-20 10:21:12,724 INFO L87 Difference]: Start difference. First operand 101 states and 114 transitions. Second operand 17 states. [2019-11-20 10:21:13,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:21:13,692 INFO L93 Difference]: Finished difference Result 140 states and 174 transitions. [2019-11-20 10:21:13,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-20 10:21:13,697 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 30 [2019-11-20 10:21:13,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:21:13,699 INFO L225 Difference]: With dead ends: 140 [2019-11-20 10:21:13,700 INFO L226 Difference]: Without dead ends: 137 [2019-11-20 10:21:13,700 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=418, Unknown=0, NotChecked=0, Total=506 [2019-11-20 10:21:13,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-20 10:21:13,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 92. [2019-11-20 10:21:13,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-20 10:21:13,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 100 transitions. [2019-11-20 10:21:13,724 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 100 transitions. Word has length 30 [2019-11-20 10:21:13,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:21:13,724 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 100 transitions. [2019-11-20 10:21:13,725 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-20 10:21:13,725 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 100 transitions. [2019-11-20 10:21:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 10:21:13,726 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:21:13,726 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:21:13,930 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:13,930 INFO L410 AbstractCegarLoop]: === Iteration 5 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-11-20 10:21:13,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:21:13,931 INFO L82 PathProgramCache]: Analyzing trace with hash 2129004606, now seen corresponding path program 1 times [2019-11-20 10:21:13,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:21:13,931 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [642645697] [2019-11-20 10:21:13,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:21:14,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 10:21:14,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:21:14,282 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:14,283 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:21:14,734 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:21:14,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [642645697] [2019-11-20 10:21:14,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 10:21:14,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-11-20 10:21:14,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652593936] [2019-11-20 10:21:14,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-20 10:21:14,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:21:14,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-20 10:21:14,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2019-11-20 10:21:14,737 INFO L87 Difference]: Start difference. First operand 92 states and 100 transitions. Second operand 17 states. [2019-11-20 10:21:15,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:21:15,482 INFO L93 Difference]: Finished difference Result 159 states and 197 transitions. [2019-11-20 10:21:15,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-20 10:21:15,483 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 34 [2019-11-20 10:21:15,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:21:15,485 INFO L225 Difference]: With dead ends: 159 [2019-11-20 10:21:15,486 INFO L226 Difference]: Without dead ends: 159 [2019-11-20 10:21:15,486 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2019-11-20 10:21:15,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-20 10:21:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 107. [2019-11-20 10:21:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-20 10:21:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2019-11-20 10:21:15,506 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 34 [2019-11-20 10:21:15,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:21:15,507 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2019-11-20 10:21:15,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-20 10:21:15,507 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2019-11-20 10:21:15,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-20 10:21:15,509 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:21:15,509 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:21:15,720 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:15,721 INFO L410 AbstractCegarLoop]: === Iteration 6 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-11-20 10:21:15,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:21:15,721 INFO L82 PathProgramCache]: Analyzing trace with hash 542305598, now seen corresponding path program 1 times [2019-11-20 10:21:15,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:21:15,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1648942875] [2019-11-20 10:21:15,722 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:21:15,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 10:21:15,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:21:16,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:16,172 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:21:16,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 10:21:16,866 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1648942875] [2019-11-20 10:21:16,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 10:21:16,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2019-11-20 10:21:16,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091799997] [2019-11-20 10:21:16,867 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-20 10:21:16,867 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:21:16,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-20 10:21:16,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2019-11-20 10:21:16,868 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 21 states. [2019-11-20 10:21:18,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:21:18,602 INFO L93 Difference]: Finished difference Result 151 states and 191 transitions. [2019-11-20 10:21:18,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-20 10:21:18,605 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 36 [2019-11-20 10:21:18,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:21:18,607 INFO L225 Difference]: With dead ends: 151 [2019-11-20 10:21:18,607 INFO L226 Difference]: Without dead ends: 148 [2019-11-20 10:21:18,608 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2019-11-20 10:21:18,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-11-20 10:21:18,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 97. [2019-11-20 10:21:18,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-20 10:21:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2019-11-20 10:21:18,621 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 36 [2019-11-20 10:21:18,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:21:18,622 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2019-11-20 10:21:18,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-20 10:21:18,622 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2019-11-20 10:21:18,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 10:21:18,624 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:21:18,624 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:21:18,827 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:18,827 INFO L410 AbstractCegarLoop]: === Iteration 7 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-11-20 10:21:18,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:21:18,828 INFO L82 PathProgramCache]: Analyzing trace with hash 746502652, now seen corresponding path program 2 times [2019-11-20 10:21:18,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:21:18,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2035613856] [2019-11-20 10:21:18,828 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:19,068 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 10:21:19,068 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 10:21:19,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 10:21:19,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:21:19,079 INFO L377 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 [2019-11-20 10:21:19,080 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:21:19,082 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:21:19,082 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:21:19,082 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 10:21:19,256 INFO L343 Elim1Store]: treesize reduction 27, result has 57.1 percent of original size [2019-11-20 10:21:19,257 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 49 [2019-11-20 10:21:19,258 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:21:19,298 INFO L567 ElimStorePlain]: treesize reduction 17, result has 54.1 percent of original size [2019-11-20 10:21:19,299 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 10:21:19,299 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:22, output treesize:20 [2019-11-20 10:21:19,434 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:19,434 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:21:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-20 10:21:34,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2035613856] [2019-11-20 10:21:34,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 10:21:34,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2019-11-20 10:21:34,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443195754] [2019-11-20 10:21:34,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 10:21:34,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:21:34,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 10:21:34,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-20 10:21:34,335 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 7 states. [2019-11-20 10:22:35,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:22:35,525 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2019-11-20 10:22:35,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 10:22:35,526 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-11-20 10:22:35,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:22:35,527 INFO L225 Difference]: With dead ends: 116 [2019-11-20 10:22:35,528 INFO L226 Difference]: Without dead ends: 116 [2019-11-20 10:22:35,528 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-20 10:22:35,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-20 10:22:35,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 98. [2019-11-20 10:22:35,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-20 10:22:35,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2019-11-20 10:22:35,538 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 39 [2019-11-20 10:22:35,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:22:35,539 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2019-11-20 10:22:35,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 10:22:35,539 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2019-11-20 10:22:35,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-20 10:22:35,541 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:22:35,541 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:22:35,745 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:22:35,745 INFO L410 AbstractCegarLoop]: === Iteration 8 === [sll_destroyErr4ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr2ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr3ASSERT_VIOLATIONMEMORY_FREE, sll_destroyErr0REQUIRES_VIOLATION, sll_destroyErr1REQUIRES_VIOLATION, sll_createErr0REQUIRES_VIOLATION, sll_createErr1REQUIRES_VIOLATION, sll_insertErr6REQUIRES_VIOLATION, sll_insertErr0REQUIRES_VIOLATION, sll_insertErr1REQUIRES_VIOLATION, sll_insertErr7REQUIRES_VIOLATION, sll_insertErr5REQUIRES_VIOLATION, sll_insertErr9REQUIRES_VIOLATION, sll_insertErr4REQUIRES_VIOLATION, sll_insertErr2REQUIRES_VIOLATION, sll_insertErr8REQUIRES_VIOLATION, sll_insertErr3REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK, mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, sll_lengthErr1REQUIRES_VIOLATION, sll_lengthErr0REQUIRES_VIOLATION]=== [2019-11-20 10:22:35,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:22:35,745 INFO L82 PathProgramCache]: Analyzing trace with hash 746502653, now seen corresponding path program 1 times [2019-11-20 10:22:35,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:22:35,746 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1610503673] [2019-11-20 10:22:35,746 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aaf6a86-f07a-4eab-9ac6-35e95408fcc9/bin/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:22:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:22:36,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-20 10:22:36,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:22:36,030 INFO L377 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 [2019-11-20 10:22:36,030 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:22:36,050 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:22:36,054 INFO L377 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 [2019-11-20 10:22:36,054 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 10:22:36,068 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:22:36,069 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:22:36,069 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-20 10:22:36,200 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-20 10:22:36,200 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:22:36,231 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:22:36,232 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:22:36,233 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:35 [2019-11-20 10:22:36,474 INFO L392 ElimStorePlain]: Different costs {2=[|v_old(#length)_AFTER_CALL_15|], 4=[|v_old(#valid)_AFTER_CALL_23|]} [2019-11-20 10:22:36,492 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 10:22:36,498 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 10:22:36,500 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 10:22:36,503 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2019-11-20 10:22:36,503 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:22:36,538 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:22:36,623 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:22:36,624 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 52 [2019-11-20 10:22:36,625 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 10:22:36,657 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:22:36,658 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:22:36,658 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:52, output treesize:43 [2019-11-20 10:22:36,812 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:22:36,812 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 36 [2019-11-20 10:22:36,814 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:36,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:36,818 INFO L496 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 10:22:36,892 INFO L567 ElimStorePlain]: treesize reduction 8, result has 81.4 percent of original size [2019-11-20 10:22:36,894 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 10:22:36,894 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:35 [2019-11-20 10:22:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:22:37,202 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:22:37,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 10:22:37,709 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 10:22:37,722 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 10:22:37,734 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 10:22:37,886 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-11-20 10:22:37,887 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:22:37,906 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 89 [2019-11-20 10:22:37,907 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:37,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:37,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:37,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:37,911 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 10:22:37,921 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 10:22:37,931 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23 [2019-11-20 10:22:37,931 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-11-20 10:22:37,944 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 10:22:37,955 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2019-11-20 10:22:37,956 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-11-20 10:22:38,198 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2019-11-20 10:22:38,199 INFO L567 ElimStorePlain]: treesize reduction 56, result has 56.9 percent of original size [2019-11-20 10:22:38,200 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2019-11-20 10:22:38,200 INFO L221 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:146, output treesize:70 [2019-11-20 10:22:48,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:48,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 10:22:48,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:48,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:48,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:48,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 10:22:48,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:48,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 10:22:54,182 WARN L191 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-11-20 10:22:54,224 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 100 [2019-11-20 10:22:59,371 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 100 [2019-11-20 10:23:04,802 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-11-20 10:23:04,833 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 100 [2019-11-20 10:23:05,578 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 100 [2019-11-20 10:23:06,227 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 100 [2019-11-20 10:23:11,734 WARN L191 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-11-20 10:23:11,761 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 100 [2019-11-20 10:23:12,674 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:23:12,675 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 10:23:12,680 INFO L168 Benchmark]: Toolchain (without parser) took 126182.69 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.7 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -215.6 MB). Peak memory consumption was 342.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:12,680 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:23:12,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:12,682 INFO L168 Benchmark]: Boogie Preprocessor took 80.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:12,683 INFO L168 Benchmark]: RCFGBuilder took 1062.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:12,684 INFO L168 Benchmark]: TraceAbstraction took 124246.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -101.0 MB). Peak memory consumption was 313.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:23:12,687 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 788.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1062.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 60.0 MB). Peak memory consumption was 60.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 124246.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 162.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -101.0 MB). Peak memory consumption was 313.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...