./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/forester-heap/dll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/forester-heap/dll-token-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d66a07d2a90ded112831066684eab385c0c1369 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:25:45,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:25:45,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:25:45,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:25:45,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:25:45,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:25:45,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:25:45,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:25:45,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:25:45,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:25:45,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:25:45,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:25:45,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:25:45,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:25:45,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:25:45,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:25:45,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:25:45,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:25:45,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:25:45,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:25:45,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:25:45,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:25:45,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:25:45,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:25:45,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:25:45,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:25:45,483 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:25:45,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:25:45,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:25:45,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:25:45,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:25:45,488 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:25:45,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:25:45,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:25:45,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:25:45,491 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:25:45,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:25:45,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:25:45,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:25:45,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:25:45,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:25:45,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-19 18:25:45,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:25:45,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:25:45,537 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:25:45,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:25:45,538 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:25:45,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:25:45,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:25:45,538 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:25:45,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:25:45,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:25:45,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:25:45,540 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-19 18:25:45,540 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-19 18:25:45,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:25:45,541 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-19 18:25:45,541 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:25:45,542 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:25:45,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:25:45,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:25:45,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:25:45,543 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:25:45,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:25:45,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:25:45,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:25:45,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:25:45,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:25:45,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:25:45,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-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 -> 1d66a07d2a90ded112831066684eab385c0c1369 [2020-10-19 18:25:45,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:25:45,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:25:45,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:25:45,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:25:45,878 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:25:45,879 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-token-2.i [2020-10-19 18:25:45,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9057a2a29/373b8caa9e834738bed18f4e349ef273/FLAG361f89edf [2020-10-19 18:25:46,425 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:25:46,425 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-token-2.i [2020-10-19 18:25:46,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9057a2a29/373b8caa9e834738bed18f4e349ef273/FLAG361f89edf [2020-10-19 18:25:46,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9057a2a29/373b8caa9e834738bed18f4e349ef273 [2020-10-19 18:25:46,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:25:46,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-19 18:25:46,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:25:46,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:25:46,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:25:46,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:25:46" (1/1) ... [2020-10-19 18:25:46,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5afbe359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:46, skipping insertion in model container [2020-10-19 18:25:46,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:25:46" (1/1) ... [2020-10-19 18:25:46,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:25:46,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:25:47,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:25:47,298 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:25:47,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:25:47,435 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:25:47,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47 WrapperNode [2020-10-19 18:25:47,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:25:47,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:25:47,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:25:47,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:25:47,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (1/1) ... [2020-10-19 18:25:47,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (1/1) ... [2020-10-19 18:25:47,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (1/1) ... [2020-10-19 18:25:47,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (1/1) ... [2020-10-19 18:25:47,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (1/1) ... [2020-10-19 18:25:47,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (1/1) ... [2020-10-19 18:25:47,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (1/1) ... [2020-10-19 18:25:47,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:25:47,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:25:47,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:25:47,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:25:47,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:25:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-19 18:25:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:25:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-19 18:25:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-19 18:25:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-19 18:25:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-19 18:25:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-19 18:25:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-19 18:25:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-19 18:25:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-19 18:25:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-19 18:25:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-19 18:25:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-19 18:25:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-19 18:25:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-19 18:25:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-19 18:25:47,595 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-19 18:25:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-19 18:25:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-19 18:25:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-19 18:25:47,596 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-19 18:25:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-19 18:25:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-19 18:25:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-19 18:25:47,597 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-19 18:25:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-19 18:25:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-19 18:25:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-19 18:25:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-19 18:25:47,598 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-19 18:25:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-19 18:25:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-19 18:25:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-19 18:25:47,599 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-19 18:25:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-19 18:25:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-19 18:25:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-19 18:25:47,600 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-19 18:25:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-19 18:25:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-19 18:25:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-19 18:25:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-19 18:25:47,601 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-19 18:25:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-19 18:25:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-19 18:25:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-19 18:25:47,602 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-19 18:25:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-19 18:25:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-19 18:25:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-19 18:25:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-19 18:25:47,603 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-19 18:25:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-19 18:25:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-19 18:25:47,604 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-19 18:25:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-19 18:25:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-19 18:25:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-19 18:25:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-19 18:25:47,605 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-19 18:25:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-19 18:25:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-19 18:25:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-19 18:25:47,606 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-19 18:25:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-19 18:25:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-19 18:25:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-19 18:25:47,607 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-19 18:25:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-19 18:25:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-19 18:25:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-19 18:25:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-19 18:25:47,608 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-19 18:25:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-19 18:25:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-19 18:25:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-19 18:25:47,609 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-19 18:25:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-19 18:25:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-19 18:25:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-19 18:25:47,610 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-19 18:25:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-19 18:25:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-19 18:25:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-19 18:25:47,611 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-19 18:25:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-19 18:25:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-19 18:25:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-19 18:25:47,612 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-19 18:25:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-19 18:25:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-19 18:25:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-19 18:25:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-19 18:25:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-19 18:25:47,613 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-19 18:25:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-19 18:25:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-19 18:25:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-19 18:25:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-19 18:25:47,614 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-19 18:25:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-19 18:25:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-19 18:25:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-19 18:25:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-19 18:25:47,615 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-19 18:25:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-19 18:25:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-19 18:25:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-19 18:25:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-19 18:25:47,616 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-19 18:25:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-19 18:25:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-19 18:25:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:25:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-19 18:25:47,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 18:25:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-19 18:25:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 18:25:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-19 18:25:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 18:25:47,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-19 18:25:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-19 18:25:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:25:47,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:25:48,437 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:25:48,438 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-10-19 18:25:48,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:25:48 BoogieIcfgContainer [2020-10-19 18:25:48,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:25:48,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:25:48,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:25:48,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:25:48,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:25:46" (1/3) ... [2020-10-19 18:25:48,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291f3f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:25:48, skipping insertion in model container [2020-10-19 18:25:48,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:25:47" (2/3) ... [2020-10-19 18:25:48,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291f3f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:25:48, skipping insertion in model container [2020-10-19 18:25:48,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:25:48" (3/3) ... [2020-10-19 18:25:48,451 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2020-10-19 18:25:48,465 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:25:48,474 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 59 error locations. [2020-10-19 18:25:48,489 INFO L253 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2020-10-19 18:25:48,512 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:25:48,512 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-19 18:25:48,513 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:25:48,513 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:25:48,513 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:25:48,514 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:25:48,514 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:25:48,514 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:25:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-10-19 18:25:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:25:48,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:48,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:48,554 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:48,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:48,561 INFO L82 PathProgramCache]: Analyzing trace with hash 2013402738, now seen corresponding path program 1 times [2020-10-19 18:25:48,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:48,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582455790] [2020-10-19 18:25:48,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:48,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:48,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:48,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582455790] [2020-10-19 18:25:48,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:48,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:25:48,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953422100] [2020-10-19 18:25:48,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:25:48,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:48,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:25:48,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:25:48,862 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 4 states. [2020-10-19 18:25:49,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:49,222 INFO L93 Difference]: Finished difference Result 152 states and 161 transitions. [2020-10-19 18:25:49,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:25:49,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:25:49,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:49,237 INFO L225 Difference]: With dead ends: 152 [2020-10-19 18:25:49,238 INFO L226 Difference]: Without dead ends: 149 [2020-10-19 18:25:49,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:25:49,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-19 18:25:49,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 130. [2020-10-19 18:25:49,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-19 18:25:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 137 transitions. [2020-10-19 18:25:49,296 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 137 transitions. Word has length 7 [2020-10-19 18:25:49,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:49,297 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 137 transitions. [2020-10-19 18:25:49,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:25:49,297 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 137 transitions. [2020-10-19 18:25:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-19 18:25:49,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:49,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:49,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 18:25:49,299 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:49,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:49,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2013402739, now seen corresponding path program 1 times [2020-10-19 18:25:49,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:49,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177895648] [2020-10-19 18:25:49,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:49,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:49,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177895648] [2020-10-19 18:25:49,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:49,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 18:25:49,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489890551] [2020-10-19 18:25:49,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 18:25:49,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:49,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:25:49,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:25:49,426 INFO L87 Difference]: Start difference. First operand 130 states and 137 transitions. Second operand 4 states. [2020-10-19 18:25:49,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:49,787 INFO L93 Difference]: Finished difference Result 154 states and 162 transitions. [2020-10-19 18:25:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:25:49,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-19 18:25:49,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:49,790 INFO L225 Difference]: With dead ends: 154 [2020-10-19 18:25:49,790 INFO L226 Difference]: Without dead ends: 154 [2020-10-19 18:25:49,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-19 18:25:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-19 18:25:49,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2020-10-19 18:25:49,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-19 18:25:49,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 134 transitions. [2020-10-19 18:25:49,804 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 134 transitions. Word has length 7 [2020-10-19 18:25:49,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:49,805 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 134 transitions. [2020-10-19 18:25:49,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 18:25:49,805 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 134 transitions. [2020-10-19 18:25:49,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:25:49,806 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:49,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:49,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 18:25:49,807 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:49,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:49,807 INFO L82 PathProgramCache]: Analyzing trace with hash 735708995, now seen corresponding path program 1 times [2020-10-19 18:25:49,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:49,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82601054] [2020-10-19 18:25:49,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:49,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:49,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82601054] [2020-10-19 18:25:49,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:49,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:25:49,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659743308] [2020-10-19 18:25:49,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:25:49,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:49,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:25:49,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:25:49,921 INFO L87 Difference]: Start difference. First operand 127 states and 134 transitions. Second operand 5 states. [2020-10-19 18:25:50,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:50,259 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2020-10-19 18:25:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:25:50,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-19 18:25:50,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:50,262 INFO L225 Difference]: With dead ends: 130 [2020-10-19 18:25:50,262 INFO L226 Difference]: Without dead ends: 130 [2020-10-19 18:25:50,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:50,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-19 18:25:50,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 114. [2020-10-19 18:25:50,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-19 18:25:50,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-10-19 18:25:50,274 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 13 [2020-10-19 18:25:50,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:50,275 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-10-19 18:25:50,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:25:50,275 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-10-19 18:25:50,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-19 18:25:50,276 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:50,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:50,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 18:25:50,277 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:50,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:50,278 INFO L82 PathProgramCache]: Analyzing trace with hash 735708996, now seen corresponding path program 1 times [2020-10-19 18:25:50,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:50,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648230144] [2020-10-19 18:25:50,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:50,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:50,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:50,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648230144] [2020-10-19 18:25:50,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:50,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-19 18:25:50,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768040050] [2020-10-19 18:25:50,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:25:50,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:50,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:25:50,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:25:50,379 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 5 states. [2020-10-19 18:25:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:50,797 INFO L93 Difference]: Finished difference Result 200 states and 213 transitions. [2020-10-19 18:25:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 18:25:50,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-19 18:25:50,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:50,800 INFO L225 Difference]: With dead ends: 200 [2020-10-19 18:25:50,800 INFO L226 Difference]: Without dead ends: 200 [2020-10-19 18:25:50,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:50,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-19 18:25:50,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 149. [2020-10-19 18:25:50,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-19 18:25:50,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2020-10-19 18:25:50,835 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 13 [2020-10-19 18:25:50,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:50,836 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2020-10-19 18:25:50,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:25:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2020-10-19 18:25:50,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:25:50,840 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:50,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:50,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 18:25:50,841 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:50,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:50,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1653236418, now seen corresponding path program 1 times [2020-10-19 18:25:50,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:50,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880571098] [2020-10-19 18:25:50,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:50,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:51,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880571098] [2020-10-19 18:25:51,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:51,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:25:51,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227256139] [2020-10-19 18:25:51,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:25:51,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:51,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:25:51,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:51,003 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand 6 states. [2020-10-19 18:25:51,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:51,423 INFO L93 Difference]: Finished difference Result 213 states and 240 transitions. [2020-10-19 18:25:51,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:25:51,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-19 18:25:51,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:51,426 INFO L225 Difference]: With dead ends: 213 [2020-10-19 18:25:51,426 INFO L226 Difference]: Without dead ends: 213 [2020-10-19 18:25:51,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:25:51,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-10-19 18:25:51,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 148. [2020-10-19 18:25:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-19 18:25:51,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 167 transitions. [2020-10-19 18:25:51,435 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 167 transitions. Word has length 15 [2020-10-19 18:25:51,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:51,436 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 167 transitions. [2020-10-19 18:25:51,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:25:51,436 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 167 transitions. [2020-10-19 18:25:51,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-19 18:25:51,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:51,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:51,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 18:25:51,437 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:51,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:51,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1653236417, now seen corresponding path program 1 times [2020-10-19 18:25:51,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:51,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939918662] [2020-10-19 18:25:51,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:51,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:51,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:51,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:51,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939918662] [2020-10-19 18:25:51,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:51,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:25:51,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662199452] [2020-10-19 18:25:51,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:25:51,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:51,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:25:51,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:51,522 INFO L87 Difference]: Start difference. First operand 148 states and 167 transitions. Second operand 6 states. [2020-10-19 18:25:52,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:52,052 INFO L93 Difference]: Finished difference Result 239 states and 269 transitions. [2020-10-19 18:25:52,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:25:52,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-19 18:25:52,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:52,055 INFO L225 Difference]: With dead ends: 239 [2020-10-19 18:25:52,056 INFO L226 Difference]: Without dead ends: 239 [2020-10-19 18:25:52,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:25:52,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-19 18:25:52,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 147. [2020-10-19 18:25:52,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-19 18:25:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 165 transitions. [2020-10-19 18:25:52,070 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 165 transitions. Word has length 15 [2020-10-19 18:25:52,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:52,070 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 165 transitions. [2020-10-19 18:25:52,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:25:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 165 transitions. [2020-10-19 18:25:52,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:25:52,071 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:52,072 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:52,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 18:25:52,072 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:52,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:52,073 INFO L82 PathProgramCache]: Analyzing trace with hash 356705479, now seen corresponding path program 1 times [2020-10-19 18:25:52,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:52,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995878467] [2020-10-19 18:25:52,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:52,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:52,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995878467] [2020-10-19 18:25:52,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:52,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:25:52,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874180495] [2020-10-19 18:25:52,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:25:52,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:52,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:25:52,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:52,138 INFO L87 Difference]: Start difference. First operand 147 states and 165 transitions. Second operand 6 states. [2020-10-19 18:25:52,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:52,404 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2020-10-19 18:25:52,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:25:52,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-19 18:25:52,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:52,406 INFO L225 Difference]: With dead ends: 153 [2020-10-19 18:25:52,406 INFO L226 Difference]: Without dead ends: 153 [2020-10-19 18:25:52,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-19 18:25:52,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-19 18:25:52,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2020-10-19 18:25:52,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-19 18:25:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2020-10-19 18:25:52,414 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 17 [2020-10-19 18:25:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:52,414 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2020-10-19 18:25:52,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:25:52,415 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2020-10-19 18:25:52,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-19 18:25:52,416 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:52,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:52,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 18:25:52,417 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:52,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:52,417 INFO L82 PathProgramCache]: Analyzing trace with hash 356705480, now seen corresponding path program 1 times [2020-10-19 18:25:52,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:52,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301722498] [2020-10-19 18:25:52,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:52,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:52,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301722498] [2020-10-19 18:25:52,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:52,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:25:52,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583799756] [2020-10-19 18:25:52,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:25:52,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:52,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:25:52,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:52,523 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand 6 states. [2020-10-19 18:25:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:52,840 INFO L93 Difference]: Finished difference Result 145 states and 161 transitions. [2020-10-19 18:25:52,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-19 18:25:52,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-19 18:25:52,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:52,842 INFO L225 Difference]: With dead ends: 145 [2020-10-19 18:25:52,842 INFO L226 Difference]: Without dead ends: 145 [2020-10-19 18:25:52,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:25:52,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-19 18:25:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-19 18:25:52,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-19 18:25:52,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 161 transitions. [2020-10-19 18:25:52,848 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 161 transitions. Word has length 17 [2020-10-19 18:25:52,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:52,848 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 161 transitions. [2020-10-19 18:25:52,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:25:52,848 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 161 transitions. [2020-10-19 18:25:52,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-19 18:25:52,849 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:52,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:52,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 18:25:52,849 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:52,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:52,850 INFO L82 PathProgramCache]: Analyzing trace with hash -2100429503, now seen corresponding path program 1 times [2020-10-19 18:25:52,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:52,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494641596] [2020-10-19 18:25:52,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:53,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:53,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:53,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494641596] [2020-10-19 18:25:53,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:53,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-19 18:25:53,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119563970] [2020-10-19 18:25:53,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:25:53,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:53,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:25:53,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:25:53,128 INFO L87 Difference]: Start difference. First operand 145 states and 161 transitions. Second operand 11 states. [2020-10-19 18:25:54,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:54,038 INFO L93 Difference]: Finished difference Result 146 states and 159 transitions. [2020-10-19 18:25:54,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-19 18:25:54,038 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-10-19 18:25:54,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:54,040 INFO L225 Difference]: With dead ends: 146 [2020-10-19 18:25:54,040 INFO L226 Difference]: Without dead ends: 146 [2020-10-19 18:25:54,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-19 18:25:54,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-19 18:25:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 123. [2020-10-19 18:25:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-19 18:25:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2020-10-19 18:25:54,045 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 19 [2020-10-19 18:25:54,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:54,045 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2020-10-19 18:25:54,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:25:54,046 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2020-10-19 18:25:54,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-19 18:25:54,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:54,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:54,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 18:25:54,047 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash -2100429504, now seen corresponding path program 1 times [2020-10-19 18:25:54,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:54,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834956363] [2020-10-19 18:25:54,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:54,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:54,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834956363] [2020-10-19 18:25:54,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:54,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-19 18:25:54,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474015170] [2020-10-19 18:25:54,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-19 18:25:54,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:54,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-19 18:25:54,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-19 18:25:54,166 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand 10 states. [2020-10-19 18:25:54,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:54,661 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2020-10-19 18:25:54,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 18:25:54,661 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-10-19 18:25:54,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:54,662 INFO L225 Difference]: With dead ends: 126 [2020-10-19 18:25:54,662 INFO L226 Difference]: Without dead ends: 126 [2020-10-19 18:25:54,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-19 18:25:54,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-19 18:25:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2020-10-19 18:25:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-19 18:25:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 137 transitions. [2020-10-19 18:25:54,667 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 137 transitions. Word has length 19 [2020-10-19 18:25:54,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:54,668 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 137 transitions. [2020-10-19 18:25:54,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-19 18:25:54,668 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 137 transitions. [2020-10-19 18:25:54,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:25:54,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:54,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:54,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 18:25:54,669 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:54,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:54,669 INFO L82 PathProgramCache]: Analyzing trace with hash 863887249, now seen corresponding path program 1 times [2020-10-19 18:25:54,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:54,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700018074] [2020-10-19 18:25:54,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:54,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:54,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:54,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700018074] [2020-10-19 18:25:54,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:54,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:25:54,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910400426] [2020-10-19 18:25:54,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:25:54,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:54,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:25:54,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:25:54,766 INFO L87 Difference]: Start difference. First operand 122 states and 137 transitions. Second operand 9 states. [2020-10-19 18:25:55,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:55,237 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2020-10-19 18:25:55,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:25:55,237 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-19 18:25:55,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:55,238 INFO L225 Difference]: With dead ends: 125 [2020-10-19 18:25:55,238 INFO L226 Difference]: Without dead ends: 125 [2020-10-19 18:25:55,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:25:55,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-19 18:25:55,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2020-10-19 18:25:55,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-19 18:25:55,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2020-10-19 18:25:55,243 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 20 [2020-10-19 18:25:55,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:55,243 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2020-10-19 18:25:55,243 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:25:55,243 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2020-10-19 18:25:55,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-19 18:25:55,244 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:55,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:55,244 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 18:25:55,244 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:55,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:55,245 INFO L82 PathProgramCache]: Analyzing trace with hash 863887250, now seen corresponding path program 1 times [2020-10-19 18:25:55,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:55,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444938676] [2020-10-19 18:25:55,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:55,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:55,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444938676] [2020-10-19 18:25:55,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:55,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-19 18:25:55,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851821222] [2020-10-19 18:25:55,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-19 18:25:55,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:55,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-19 18:25:55,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-19 18:25:55,350 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand 9 states. [2020-10-19 18:25:55,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:55,830 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2020-10-19 18:25:55,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-19 18:25:55,831 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-19 18:25:55,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:55,832 INFO L225 Difference]: With dead ends: 124 [2020-10-19 18:25:55,832 INFO L226 Difference]: Without dead ends: 124 [2020-10-19 18:25:55,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-19 18:25:55,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-19 18:25:55,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2020-10-19 18:25:55,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-19 18:25:55,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 135 transitions. [2020-10-19 18:25:55,837 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 135 transitions. Word has length 20 [2020-10-19 18:25:55,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:55,837 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 135 transitions. [2020-10-19 18:25:55,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-19 18:25:55,837 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 135 transitions. [2020-10-19 18:25:55,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-19 18:25:55,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:55,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:55,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 18:25:55,839 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:55,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:55,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1159437965, now seen corresponding path program 1 times [2020-10-19 18:25:55,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:55,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170944415] [2020-10-19 18:25:55,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:55,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:55,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:55,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:55,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170944415] [2020-10-19 18:25:55,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:55,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-19 18:25:55,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471543380] [2020-10-19 18:25:55,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-19 18:25:55,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:55,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-19 18:25:55,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-19 18:25:55,970 INFO L87 Difference]: Start difference. First operand 120 states and 135 transitions. Second operand 11 states. [2020-10-19 18:25:56,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:56,663 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2020-10-19 18:25:56,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-19 18:25:56,664 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-10-19 18:25:56,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:56,665 INFO L225 Difference]: With dead ends: 140 [2020-10-19 18:25:56,666 INFO L226 Difference]: Without dead ends: 140 [2020-10-19 18:25:56,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-10-19 18:25:56,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-19 18:25:56,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 119. [2020-10-19 18:25:56,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-19 18:25:56,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2020-10-19 18:25:56,671 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 23 [2020-10-19 18:25:56,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:56,672 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2020-10-19 18:25:56,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-19 18:25:56,672 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2020-10-19 18:25:56,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-19 18:25:56,673 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:56,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:56,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 18:25:56,673 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:56,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:56,674 INFO L82 PathProgramCache]: Analyzing trace with hash -164424272, now seen corresponding path program 1 times [2020-10-19 18:25:56,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:56,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433038477] [2020-10-19 18:25:56,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:56,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:56,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:56,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433038477] [2020-10-19 18:25:56,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:56,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 18:25:56,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259970038] [2020-10-19 18:25:56,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-19 18:25:56,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:56,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 18:25:56,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:25:56,735 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand 5 states. [2020-10-19 18:25:57,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:57,013 INFO L93 Difference]: Finished difference Result 176 states and 188 transitions. [2020-10-19 18:25:57,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:25:57,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-19 18:25:57,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:57,016 INFO L225 Difference]: With dead ends: 176 [2020-10-19 18:25:57,016 INFO L226 Difference]: Without dead ends: 176 [2020-10-19 18:25:57,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-19 18:25:57,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 118. [2020-10-19 18:25:57,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-19 18:25:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 131 transitions. [2020-10-19 18:25:57,021 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 131 transitions. Word has length 25 [2020-10-19 18:25:57,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:57,021 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 131 transitions. [2020-10-19 18:25:57,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-19 18:25:57,022 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 131 transitions. [2020-10-19 18:25:57,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-19 18:25:57,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:57,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:57,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 18:25:57,023 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:57,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:57,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1467215118, now seen corresponding path program 1 times [2020-10-19 18:25:57,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:57,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711970790] [2020-10-19 18:25:57,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:57,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:57,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:57,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711970790] [2020-10-19 18:25:57,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:57,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-19 18:25:57,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105094964] [2020-10-19 18:25:57,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 18:25:57,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:57,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 18:25:57,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-19 18:25:57,118 INFO L87 Difference]: Start difference. First operand 118 states and 131 transitions. Second operand 6 states. [2020-10-19 18:25:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:57,331 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2020-10-19 18:25:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-19 18:25:57,331 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-19 18:25:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:57,334 INFO L225 Difference]: With dead ends: 117 [2020-10-19 18:25:57,334 INFO L226 Difference]: Without dead ends: 117 [2020-10-19 18:25:57,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-19 18:25:57,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-19 18:25:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-19 18:25:57,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-19 18:25:57,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 128 transitions. [2020-10-19 18:25:57,343 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 128 transitions. Word has length 30 [2020-10-19 18:25:57,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:57,343 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 128 transitions. [2020-10-19 18:25:57,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 18:25:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 128 transitions. [2020-10-19 18:25:57,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-19 18:25:57,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:57,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:57,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 18:25:57,347 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:57,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:57,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1435698162, now seen corresponding path program 1 times [2020-10-19 18:25:57,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:57,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595025755] [2020-10-19 18:25:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:57,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:57,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:57,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:57,692 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595025755] [2020-10-19 18:25:57,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:57,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-19 18:25:57,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706890941] [2020-10-19 18:25:57,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 18:25:57,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:57,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 18:25:57,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:25:57,694 INFO L87 Difference]: Start difference. First operand 117 states and 128 transitions. Second operand 13 states. [2020-10-19 18:25:58,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:58,342 INFO L93 Difference]: Finished difference Result 214 states and 225 transitions. [2020-10-19 18:25:58,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-19 18:25:58,343 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-10-19 18:25:58,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:58,344 INFO L225 Difference]: With dead ends: 214 [2020-10-19 18:25:58,344 INFO L226 Difference]: Without dead ends: 214 [2020-10-19 18:25:58,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2020-10-19 18:25:58,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-19 18:25:58,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 132. [2020-10-19 18:25:58,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-19 18:25:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 144 transitions. [2020-10-19 18:25:58,349 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 144 transitions. Word has length 30 [2020-10-19 18:25:58,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:58,350 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 144 transitions. [2020-10-19 18:25:58,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 18:25:58,350 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 144 transitions. [2020-10-19 18:25:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-19 18:25:58,351 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:58,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:58,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-19 18:25:58,351 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:58,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:58,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1761789926, now seen corresponding path program 1 times [2020-10-19 18:25:58,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:58,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111778618] [2020-10-19 18:25:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:58,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:58,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:58,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111778618] [2020-10-19 18:25:58,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:58,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-19 18:25:58,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140199341] [2020-10-19 18:25:58,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 18:25:58,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:58,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 18:25:58,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:25:58,513 INFO L87 Difference]: Start difference. First operand 132 states and 144 transitions. Second operand 13 states. [2020-10-19 18:25:59,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:25:59,254 INFO L93 Difference]: Finished difference Result 181 states and 192 transitions. [2020-10-19 18:25:59,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-19 18:25:59,255 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-10-19 18:25:59,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:25:59,257 INFO L225 Difference]: With dead ends: 181 [2020-10-19 18:25:59,257 INFO L226 Difference]: Without dead ends: 181 [2020-10-19 18:25:59,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-19 18:25:59,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-19 18:25:59,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 138. [2020-10-19 18:25:59,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-19 18:25:59,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 151 transitions. [2020-10-19 18:25:59,262 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 151 transitions. Word has length 31 [2020-10-19 18:25:59,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:25:59,263 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 151 transitions. [2020-10-19 18:25:59,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 18:25:59,263 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 151 transitions. [2020-10-19 18:25:59,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-19 18:25:59,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:25:59,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:25:59,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-19 18:25:59,264 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:25:59,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:25:59,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1761789927, now seen corresponding path program 1 times [2020-10-19 18:25:59,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:25:59,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501361433] [2020-10-19 18:25:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:25:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:59,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-19 18:25:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:25:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:25:59,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501361433] [2020-10-19 18:25:59,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 18:25:59,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-19 18:25:59,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030961421] [2020-10-19 18:25:59,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-19 18:25:59,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:25:59,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-19 18:25:59,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-19 18:25:59,464 INFO L87 Difference]: Start difference. First operand 138 states and 151 transitions. Second operand 13 states. [2020-10-19 18:26:00,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:26:00,364 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2020-10-19 18:26:00,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-19 18:26:00,368 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-10-19 18:26:00,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 18:26:00,370 INFO L225 Difference]: With dead ends: 212 [2020-10-19 18:26:00,370 INFO L226 Difference]: Without dead ends: 212 [2020-10-19 18:26:00,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-10-19 18:26:00,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-19 18:26:00,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 138. [2020-10-19 18:26:00,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-19 18:26:00,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2020-10-19 18:26:00,375 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 31 [2020-10-19 18:26:00,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 18:26:00,376 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2020-10-19 18:26:00,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-19 18:26:00,376 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2020-10-19 18:26:00,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-19 18:26:00,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 18:26:00,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 18:26:00,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-19 18:26:00,380 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr51ASSERT_VIOLATIONMEMORY_FREE, mainErr5REQUIRES_VIOLATION, mainErr56ASSERT_VIOLATIONMEMORY_FREE, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr46ASSERT_VIOLATIONMEMORY_FREE, mainErr22REQUIRES_VIOLATION, mainErr57ENSURES_VIOLATIONMEMORY_LEAK, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr52ASSERT_VIOLATIONMEMORY_FREE, mainErr55ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr31REQUIRES_VIOLATION, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr53ASSERT_VIOLATIONMEMORY_FREE, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr54ASSERT_VIOLATIONMEMORY_FREE, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr44ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr14REQUIRES_VIOLATION, mainErr45ASSERT_VIOLATIONMEMORY_FREE, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION]=== [2020-10-19 18:26:00,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:26:00,380 INFO L82 PathProgramCache]: Analyzing trace with hash 423103229, now seen corresponding path program 1 times [2020-10-19 18:26:00,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:26:00,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878306539] [2020-10-19 18:26:00,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:26:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:26:00,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:26:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:26:00,427 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:26:00,491 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:26:00,491 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 18:26:00,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-19 18:26:00,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:26:00 BoogieIcfgContainer [2020-10-19 18:26:00,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:26:00,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:26:00,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:26:00,542 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:26:00,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:25:48" (3/4) ... [2020-10-19 18:26:00,544 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 18:26:00,597 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:26:00,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:26:00,600 INFO L168 Benchmark]: Toolchain (without parser) took 13837.69 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 383.3 MB). Free memory was 949.2 MB in the beginning and 1.4 GB in the end (delta: -401.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:26:00,601 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:26:00,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -170.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:00,602 INFO L168 Benchmark]: Boogie Preprocessor took 78.43 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:00,602 INFO L168 Benchmark]: RCFGBuilder took 925.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:26:00,603 INFO L168 Benchmark]: TraceAbstraction took 12098.88 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 244.8 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -308.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:26:00,604 INFO L168 Benchmark]: Witness Printer took 56.42 ms. Allocated memory is still 1.4 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2020-10-19 18:26:00,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 667.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -170.1 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.43 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 925.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12098.88 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 244.8 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -308.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 56.42 ms. Allocated memory is still 1.4 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1005] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1006] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1007] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1009] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1022] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1023] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1023] x->next->prev = x VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] x->next->data = 2 VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1026] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=1] [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->next={-2:0}] [L1036] x = x->next [L1037] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, malloc(sizeof(SLL))={-1:0}, x={-2:0}, x->data=2] [L1037] COND TRUE !(2 != x->data) [L1037] CALL reach_error() [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-token-2.c", 12, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 144 locations, 59 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1399 SDtfs, 2565 SDslu, 3167 SDs, 0 SdLazy, 7253 SolverSat, 486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 590 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 387 NumberOfCodeBlocks, 387 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 334 ConstructedInterpolants, 0 QuantifiedInterpolants, 49858 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...