./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 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/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 0.2.0-5485861 [2020-10-26 03:57:53,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:57:53,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:57:53,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:57:53,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:57:53,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:57:53,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:57:53,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:57:53,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:57:53,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:57:53,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:57:53,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:57:53,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:57:53,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:57:53,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:57:53,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:57:53,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:57:53,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:57:53,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:57:53,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:57:53,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:57:53,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:57:53,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:57:53,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:57:53,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:57:53,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:57:53,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:57:53,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:57:53,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:57:53,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:57:53,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:57:53,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:57:53,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:57:53,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:57:53,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:57:53,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:57:53,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:57:53,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:57:53,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:57:53,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:57:53,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:57:53,343 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-10-26 03:57:53,396 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:57:53,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:57:53,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:57:53,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:57:53,401 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:57:53,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:57:53,402 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 03:57:53,402 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:57:53,402 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:57:53,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 03:57:53,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:57:53,404 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:57:53,404 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:57:53,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:57:53,404 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:57:53,404 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 03:57:53,404 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:57:53,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:57:53,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:57:53,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:57:53,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:57:53,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:57:53,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:57:53,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:57:53,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:57:53,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:57:53,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:57:53,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d66a07d2a90ded112831066684eab385c0c1369 [2020-10-26 03:57:53,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:57:53,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:57:53,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:57:53,902 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:57:53,904 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:57:53,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-token-2.i [2020-10-26 03:57:53,987 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e813c3da0/83248d68494842d3b376299ae057c089/FLAG1244e34ae [2020-10-26 03:57:54,691 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:57:54,692 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-token-2.i [2020-10-26 03:57:54,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e813c3da0/83248d68494842d3b376299ae057c089/FLAG1244e34ae [2020-10-26 03:57:54,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e813c3da0/83248d68494842d3b376299ae057c089 [2020-10-26 03:57:54,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:57:54,937 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:57:54,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:57:54,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:57:54,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:57:54,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:57:54" (1/1) ... [2020-10-26 03:57:54,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313352b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:54, skipping insertion in model container [2020-10-26 03:57:54,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:57:54" (1/1) ... [2020-10-26 03:57:54,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:57:55,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:57:55,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:57:55,399 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:57:55,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:57:55,525 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:57:55,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55 WrapperNode [2020-10-26 03:57:55,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:57:55,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:57:55,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:57:55,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:57:55,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (1/1) ... [2020-10-26 03:57:55,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (1/1) ... [2020-10-26 03:57:55,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (1/1) ... [2020-10-26 03:57:55,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (1/1) ... [2020-10-26 03:57:55,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (1/1) ... [2020-10-26 03:57:55,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (1/1) ... [2020-10-26 03:57:55,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (1/1) ... [2020-10-26 03:57:55,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:57:55,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:57:55,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:57:55,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:57:55,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:57:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:57:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:57:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 03:57:55,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:57:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-10-26 03:57:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-10-26 03:57:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-10-26 03:57:55,748 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-10-26 03:57:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-10-26 03:57:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-10-26 03:57:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-10-26 03:57:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-10-26 03:57:55,749 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-10-26 03:57:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-10-26 03:57:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-10-26 03:57:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-10-26 03:57:55,750 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-10-26 03:57:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-10-26 03:57:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-10-26 03:57:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-10-26 03:57:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-10-26 03:57:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-10-26 03:57:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-10-26 03:57:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-10-26 03:57:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-10-26 03:57:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-10-26 03:57:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-10-26 03:57:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-10-26 03:57:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-10-26 03:57:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-10-26 03:57:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-10-26 03:57:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-10-26 03:57:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-10-26 03:57:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-10-26 03:57:55,754 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-10-26 03:57:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-10-26 03:57:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-10-26 03:57:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-10-26 03:57:55,762 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-10-26 03:57:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-10-26 03:57:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-10-26 03:57:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-10-26 03:57:55,763 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-10-26 03:57:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-10-26 03:57:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-10-26 03:57:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-10-26 03:57:55,764 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-10-26 03:57:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-10-26 03:57:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-10-26 03:57:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-10-26 03:57:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-10-26 03:57:55,765 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-10-26 03:57:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-10-26 03:57:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-10-26 03:57:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-26 03:57:55,766 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-26 03:57:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-10-26 03:57:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-26 03:57:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-10-26 03:57:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-10-26 03:57:55,767 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-10-26 03:57:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-10-26 03:57:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-10-26 03:57:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 03:57:55,768 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-10-26 03:57:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-10-26 03:57:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-10-26 03:57:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 03:57:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-10-26 03:57:55,769 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-10-26 03:57:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-10-26 03:57:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-10-26 03:57:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-10-26 03:57:55,770 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-10-26 03:57:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-10-26 03:57:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-10-26 03:57:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-10-26 03:57:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-10-26 03:57:55,771 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-10-26 03:57:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-10-26 03:57:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-10-26 03:57:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-10-26 03:57:55,772 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-10-26 03:57:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-10-26 03:57:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-10-26 03:57:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-10-26 03:57:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-10-26 03:57:55,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-10-26 03:57:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-10-26 03:57:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-10-26 03:57:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-10-26 03:57:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-10-26 03:57:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-10-26 03:57:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-10-26 03:57:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-10-26 03:57:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-10-26 03:57:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-10-26 03:57:55,775 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-10-26 03:57:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-10-26 03:57:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-10-26 03:57:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-10-26 03:57:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-10-26 03:57:55,776 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-10-26 03:57:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-10-26 03:57:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-10-26 03:57:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-10-26 03:57:55,777 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-10-26 03:57:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:57:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 03:57:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-26 03:57:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-26 03:57:55,778 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 03:57:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 03:57:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:57:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-26 03:57:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-26 03:57:55,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 03:57:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-26 03:57:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 03:57:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 03:57:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:57:55,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 03:57:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:57:56,854 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:57:56,854 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-10-26 03:57:56,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:56 BoogieIcfgContainer [2020-10-26 03:57:56,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:57:56,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:57:56,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:57:56,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:57:56,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:57:54" (1/3) ... [2020-10-26 03:57:56,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aa0aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:57:56, skipping insertion in model container [2020-10-26 03:57:56,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:55" (2/3) ... [2020-10-26 03:57:56,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aa0aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:57:56, skipping insertion in model container [2020-10-26 03:57:56,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:56" (3/3) ... [2020-10-26 03:57:56,866 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2020-10-26 03:57:56,884 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:57:56,896 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 59 error locations. [2020-10-26 03:57:56,909 INFO L253 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2020-10-26 03:57:56,943 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:57:56,944 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:57:56,944 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:57:56,945 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:57:56,945 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:57:56,945 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:57:56,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:57:56,949 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:57:56,974 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2020-10-26 03:57:56,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 03:57:56,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:56,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:56,990 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]=== [2020-10-26 03:57:56,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:56,998 INFO L82 PathProgramCache]: Analyzing trace with hash 2013402738, now seen corresponding path program 1 times [2020-10-26 03:57:57,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:57,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590157421] [2020-10-26 03:57:57,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:57,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:57,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:57,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590157421] [2020-10-26 03:57:57,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:57,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:57:57,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188254809] [2020-10-26 03:57:57,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:57:57,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:57,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:57:57,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:57,350 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 4 states. [2020-10-26 03:57:57,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:57,968 INFO L93 Difference]: Finished difference Result 152 states and 161 transitions. [2020-10-26 03:57:57,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:57:57,970 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-26 03:57:57,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:57,981 INFO L225 Difference]: With dead ends: 152 [2020-10-26 03:57:57,982 INFO L226 Difference]: Without dead ends: 149 [2020-10-26 03:57:57,983 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 [2020-10-26 03:57:58,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-10-26 03:57:58,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 130. [2020-10-26 03:57:58,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-26 03:57:58,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 137 transitions. [2020-10-26 03:57:58,038 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 137 transitions. Word has length 7 [2020-10-26 03:57:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:58,039 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 137 transitions. [2020-10-26 03:57:58,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:57:58,039 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 137 transitions. [2020-10-26 03:57:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 03:57:58,040 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:58,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:58,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 03:57:58,041 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]=== [2020-10-26 03:57:58,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:58,042 INFO L82 PathProgramCache]: Analyzing trace with hash 2013402739, now seen corresponding path program 1 times [2020-10-26 03:57:58,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:58,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489051220] [2020-10-26 03:57:58,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:58,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:58,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:58,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489051220] [2020-10-26 03:57:58,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:58,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 03:57:58,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028127761] [2020-10-26 03:57:58,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 03:57:58,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:58,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 03:57:58,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 03:57:58,209 INFO L87 Difference]: Start difference. First operand 130 states and 137 transitions. Second operand 4 states. [2020-10-26 03:57:58,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:58,705 INFO L93 Difference]: Finished difference Result 154 states and 162 transitions. [2020-10-26 03:57:58,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 03:57:58,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-26 03:57:58,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:58,708 INFO L225 Difference]: With dead ends: 154 [2020-10-26 03:57:58,709 INFO L226 Difference]: Without dead ends: 154 [2020-10-26 03:57:58,710 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 [2020-10-26 03:57:58,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-26 03:57:58,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2020-10-26 03:57:58,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-26 03:57:58,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 134 transitions. [2020-10-26 03:57:58,724 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 134 transitions. Word has length 7 [2020-10-26 03:57:58,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:58,725 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 134 transitions. [2020-10-26 03:57:58,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 03:57:58,725 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 134 transitions. [2020-10-26 03:57:58,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 03:57:58,726 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:58,727 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:58,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 03:57:58,728 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]=== [2020-10-26 03:57:58,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:58,729 INFO L82 PathProgramCache]: Analyzing trace with hash 735708995, now seen corresponding path program 1 times [2020-10-26 03:57:58,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:58,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015708409] [2020-10-26 03:57:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:58,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015708409] [2020-10-26 03:57:58,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:58,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:57:58,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20376470] [2020-10-26 03:57:58,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:57:58,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:58,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:57:58,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:57:58,854 INFO L87 Difference]: Start difference. First operand 127 states and 134 transitions. Second operand 5 states. [2020-10-26 03:57:59,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:59,186 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2020-10-26 03:57:59,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:57:59,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-26 03:57:59,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:59,188 INFO L225 Difference]: With dead ends: 130 [2020-10-26 03:57:59,189 INFO L226 Difference]: Without dead ends: 130 [2020-10-26 03:57:59,189 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 [2020-10-26 03:57:59,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-26 03:57:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 114. [2020-10-26 03:57:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-26 03:57:59,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 123 transitions. [2020-10-26 03:57:59,200 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 123 transitions. Word has length 13 [2020-10-26 03:57:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:59,201 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 123 transitions. [2020-10-26 03:57:59,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:57:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 123 transitions. [2020-10-26 03:57:59,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-26 03:57:59,202 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:59,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:59,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 03:57:59,203 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]=== [2020-10-26 03:57:59,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:59,204 INFO L82 PathProgramCache]: Analyzing trace with hash 735708996, now seen corresponding path program 1 times [2020-10-26 03:57:59,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:59,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260589747] [2020-10-26 03:57:59,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:59,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:59,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:59,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260589747] [2020-10-26 03:57:59,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:59,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 03:57:59,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781353479] [2020-10-26 03:57:59,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:57:59,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:59,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:57:59,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:57:59,304 INFO L87 Difference]: Start difference. First operand 114 states and 123 transitions. Second operand 5 states. [2020-10-26 03:57:59,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:57:59,705 INFO L93 Difference]: Finished difference Result 200 states and 213 transitions. [2020-10-26 03:57:59,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 03:57:59,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-26 03:57:59,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:57:59,710 INFO L225 Difference]: With dead ends: 200 [2020-10-26 03:57:59,710 INFO L226 Difference]: Without dead ends: 200 [2020-10-26 03:57:59,711 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 [2020-10-26 03:57:59,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-26 03:57:59,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 149. [2020-10-26 03:57:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2020-10-26 03:57:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2020-10-26 03:57:59,731 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 13 [2020-10-26 03:57:59,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:57:59,731 INFO L481 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2020-10-26 03:57:59,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:57:59,732 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2020-10-26 03:57:59,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 03:57:59,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:57:59,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:57:59,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 03:57:59,735 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]=== [2020-10-26 03:57:59,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:57:59,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1653236418, now seen corresponding path program 1 times [2020-10-26 03:57:59,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:57:59,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842011510] [2020-10-26 03:57:59,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:57:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:59,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:57:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:57:59,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:57:59,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842011510] [2020-10-26 03:57:59,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:57:59,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:57:59,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959229637] [2020-10-26 03:57:59,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:57:59,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:57:59,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:57:59,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:57:59,898 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand 6 states. [2020-10-26 03:58:00,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:00,361 INFO L93 Difference]: Finished difference Result 213 states and 240 transitions. [2020-10-26 03:58:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:58:00,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-26 03:58:00,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:00,364 INFO L225 Difference]: With dead ends: 213 [2020-10-26 03:58:00,364 INFO L226 Difference]: Without dead ends: 213 [2020-10-26 03:58:00,365 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 [2020-10-26 03:58:00,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-10-26 03:58:00,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 148. [2020-10-26 03:58:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-10-26 03:58:00,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 167 transitions. [2020-10-26 03:58:00,375 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 167 transitions. Word has length 15 [2020-10-26 03:58:00,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:00,376 INFO L481 AbstractCegarLoop]: Abstraction has 148 states and 167 transitions. [2020-10-26 03:58:00,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:58:00,376 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 167 transitions. [2020-10-26 03:58:00,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-26 03:58:00,377 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:00,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:00,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 03:58:00,378 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]=== [2020-10-26 03:58:00,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:00,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1653236417, now seen corresponding path program 1 times [2020-10-26 03:58:00,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:00,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731702336] [2020-10-26 03:58:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:00,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:00,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:00,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731702336] [2020-10-26 03:58:00,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:00,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:58:00,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591703846] [2020-10-26 03:58:00,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:58:00,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:00,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:58:00,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:58:00,509 INFO L87 Difference]: Start difference. First operand 148 states and 167 transitions. Second operand 6 states. [2020-10-26 03:58:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:01,109 INFO L93 Difference]: Finished difference Result 239 states and 269 transitions. [2020-10-26 03:58:01,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:58:01,110 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-26 03:58:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:01,112 INFO L225 Difference]: With dead ends: 239 [2020-10-26 03:58:01,112 INFO L226 Difference]: Without dead ends: 239 [2020-10-26 03:58:01,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:58:01,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-10-26 03:58:01,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 147. [2020-10-26 03:58:01,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-10-26 03:58:01,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 165 transitions. [2020-10-26 03:58:01,128 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 165 transitions. Word has length 15 [2020-10-26 03:58:01,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:01,130 INFO L481 AbstractCegarLoop]: Abstraction has 147 states and 165 transitions. [2020-10-26 03:58:01,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:58:01,131 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 165 transitions. [2020-10-26 03:58:01,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-26 03:58:01,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:01,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:01,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 03:58:01,134 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]=== [2020-10-26 03:58:01,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:01,136 INFO L82 PathProgramCache]: Analyzing trace with hash 356705479, now seen corresponding path program 1 times [2020-10-26 03:58:01,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:01,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920302454] [2020-10-26 03:58:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:01,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:01,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:01,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920302454] [2020-10-26 03:58:01,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:01,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:58:01,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098213152] [2020-10-26 03:58:01,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:58:01,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:01,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:58:01,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:58:01,220 INFO L87 Difference]: Start difference. First operand 147 states and 165 transitions. Second operand 6 states. [2020-10-26 03:58:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:01,563 INFO L93 Difference]: Finished difference Result 153 states and 167 transitions. [2020-10-26 03:58:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:58:01,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-26 03:58:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:01,566 INFO L225 Difference]: With dead ends: 153 [2020-10-26 03:58:01,566 INFO L226 Difference]: Without dead ends: 153 [2020-10-26 03:58:01,566 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 [2020-10-26 03:58:01,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-26 03:58:01,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 146. [2020-10-26 03:58:01,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-26 03:58:01,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 163 transitions. [2020-10-26 03:58:01,573 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 163 transitions. Word has length 17 [2020-10-26 03:58:01,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:01,573 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 163 transitions. [2020-10-26 03:58:01,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:58:01,573 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2020-10-26 03:58:01,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-26 03:58:01,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:01,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:01,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 03:58:01,575 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]=== [2020-10-26 03:58:01,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:01,575 INFO L82 PathProgramCache]: Analyzing trace with hash 356705480, now seen corresponding path program 1 times [2020-10-26 03:58:01,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:01,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539075350] [2020-10-26 03:58:01,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:01,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:01,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:01,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539075350] [2020-10-26 03:58:01,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:01,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:58:01,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250837460] [2020-10-26 03:58:01,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:58:01,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:01,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:58:01,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:58:01,670 INFO L87 Difference]: Start difference. First operand 146 states and 163 transitions. Second operand 6 states. [2020-10-26 03:58:02,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:02,021 INFO L93 Difference]: Finished difference Result 145 states and 161 transitions. [2020-10-26 03:58:02,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-26 03:58:02,022 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-10-26 03:58:02,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:02,023 INFO L225 Difference]: With dead ends: 145 [2020-10-26 03:58:02,024 INFO L226 Difference]: Without dead ends: 145 [2020-10-26 03:58:02,024 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 [2020-10-26 03:58:02,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-10-26 03:58:02,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-10-26 03:58:02,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-10-26 03:58:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 161 transitions. [2020-10-26 03:58:02,030 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 161 transitions. Word has length 17 [2020-10-26 03:58:02,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:02,030 INFO L481 AbstractCegarLoop]: Abstraction has 145 states and 161 transitions. [2020-10-26 03:58:02,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:58:02,030 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 161 transitions. [2020-10-26 03:58:02,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-26 03:58:02,031 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:02,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:02,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 03:58:02,031 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]=== [2020-10-26 03:58:02,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:02,032 INFO L82 PathProgramCache]: Analyzing trace with hash -2100429503, now seen corresponding path program 1 times [2020-10-26 03:58:02,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:02,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48254319] [2020-10-26 03:58:02,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:02,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:02,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:02,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48254319] [2020-10-26 03:58:02,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:02,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-26 03:58:02,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406722761] [2020-10-26 03:58:02,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:58:02,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:02,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:58:02,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:58:02,261 INFO L87 Difference]: Start difference. First operand 145 states and 161 transitions. Second operand 11 states. [2020-10-26 03:58:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:03,129 INFO L93 Difference]: Finished difference Result 146 states and 159 transitions. [2020-10-26 03:58:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-26 03:58:03,130 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 19 [2020-10-26 03:58:03,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:03,133 INFO L225 Difference]: With dead ends: 146 [2020-10-26 03:58:03,133 INFO L226 Difference]: Without dead ends: 146 [2020-10-26 03:58:03,134 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 [2020-10-26 03:58:03,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-26 03:58:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 123. [2020-10-26 03:58:03,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-10-26 03:58:03,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2020-10-26 03:58:03,141 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 19 [2020-10-26 03:58:03,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:03,141 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2020-10-26 03:58:03,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:58:03,142 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2020-10-26 03:58:03,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-26 03:58:03,142 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:03,142 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 03:58:03,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 03:58:03,143 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]=== [2020-10-26 03:58:03,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:03,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2100429504, now seen corresponding path program 1 times [2020-10-26 03:58:03,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:03,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026253906] [2020-10-26 03:58:03,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:03,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:03,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:03,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:03,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026253906] [2020-10-26 03:58:03,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:03,295 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-26 03:58:03,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347123231] [2020-10-26 03:58:03,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-26 03:58:03,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:03,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-26 03:58:03,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-26 03:58:03,296 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand 10 states. [2020-10-26 03:58:03,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:03,803 INFO L93 Difference]: Finished difference Result 126 states and 138 transitions. [2020-10-26 03:58:03,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 03:58:03,804 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2020-10-26 03:58:03,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:03,805 INFO L225 Difference]: With dead ends: 126 [2020-10-26 03:58:03,806 INFO L226 Difference]: Without dead ends: 126 [2020-10-26 03:58:03,806 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 [2020-10-26 03:58:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-10-26 03:58:03,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2020-10-26 03:58:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-26 03:58:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 137 transitions. [2020-10-26 03:58:03,816 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 137 transitions. Word has length 19 [2020-10-26 03:58:03,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:03,817 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 137 transitions. [2020-10-26 03:58:03,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-26 03:58:03,817 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 137 transitions. [2020-10-26 03:58:03,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 03:58:03,819 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:03,819 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] [2020-10-26 03:58:03,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 03:58:03,819 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]=== [2020-10-26 03:58:03,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:03,821 INFO L82 PathProgramCache]: Analyzing trace with hash 863887249, now seen corresponding path program 1 times [2020-10-26 03:58:03,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:03,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414213364] [2020-10-26 03:58:03,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:03,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:03,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414213364] [2020-10-26 03:58:03,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:03,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:58:03,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83563548] [2020-10-26 03:58:03,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:58:03,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:03,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:58:03,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:58:03,979 INFO L87 Difference]: Start difference. First operand 122 states and 137 transitions. Second operand 9 states. [2020-10-26 03:58:04,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:04,455 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2020-10-26 03:58:04,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:58:04,455 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-26 03:58:04,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:04,457 INFO L225 Difference]: With dead ends: 125 [2020-10-26 03:58:04,457 INFO L226 Difference]: Without dead ends: 125 [2020-10-26 03:58:04,458 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 [2020-10-26 03:58:04,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-26 03:58:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2020-10-26 03:58:04,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-10-26 03:58:04,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 136 transitions. [2020-10-26 03:58:04,463 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 136 transitions. Word has length 20 [2020-10-26 03:58:04,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:04,463 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 136 transitions. [2020-10-26 03:58:04,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:58:04,463 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 136 transitions. [2020-10-26 03:58:04,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-26 03:58:04,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:04,464 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] [2020-10-26 03:58:04,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 03:58:04,464 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]=== [2020-10-26 03:58:04,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:04,465 INFO L82 PathProgramCache]: Analyzing trace with hash 863887250, now seen corresponding path program 1 times [2020-10-26 03:58:04,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:04,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285690888] [2020-10-26 03:58:04,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:04,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:04,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:04,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285690888] [2020-10-26 03:58:04,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:04,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-26 03:58:04,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749093760] [2020-10-26 03:58:04,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-26 03:58:04,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:04,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-26 03:58:04,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-26 03:58:04,606 INFO L87 Difference]: Start difference. First operand 121 states and 136 transitions. Second operand 9 states. [2020-10-26 03:58:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:05,087 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2020-10-26 03:58:05,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 03:58:05,088 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2020-10-26 03:58:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:05,089 INFO L225 Difference]: With dead ends: 124 [2020-10-26 03:58:05,089 INFO L226 Difference]: Without dead ends: 124 [2020-10-26 03:58:05,090 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 [2020-10-26 03:58:05,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-10-26 03:58:05,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2020-10-26 03:58:05,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-26 03:58:05,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 135 transitions. [2020-10-26 03:58:05,095 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 135 transitions. Word has length 20 [2020-10-26 03:58:05,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:05,095 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 135 transitions. [2020-10-26 03:58:05,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-26 03:58:05,095 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 135 transitions. [2020-10-26 03:58:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-26 03:58:05,102 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:05,103 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] [2020-10-26 03:58:05,103 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 03:58:05,103 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]=== [2020-10-26 03:58:05,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:05,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1159437965, now seen corresponding path program 1 times [2020-10-26 03:58:05,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:05,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727225486] [2020-10-26 03:58:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:05,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:05,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727225486] [2020-10-26 03:58:05,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:05,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-26 03:58:05,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655476281] [2020-10-26 03:58:05,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-26 03:58:05,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:05,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-26 03:58:05,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-26 03:58:05,291 INFO L87 Difference]: Start difference. First operand 120 states and 135 transitions. Second operand 11 states. [2020-10-26 03:58:05,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:05,971 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2020-10-26 03:58:05,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-26 03:58:05,972 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-10-26 03:58:05,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:05,973 INFO L225 Difference]: With dead ends: 140 [2020-10-26 03:58:05,974 INFO L226 Difference]: Without dead ends: 140 [2020-10-26 03:58:05,974 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 [2020-10-26 03:58:05,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-26 03:58:05,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 119. [2020-10-26 03:58:05,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-26 03:58:05,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2020-10-26 03:58:05,980 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 23 [2020-10-26 03:58:05,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:05,980 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2020-10-26 03:58:05,981 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-26 03:58:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2020-10-26 03:58:05,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-26 03:58:05,982 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:05,982 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] [2020-10-26 03:58:05,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 03:58:05,982 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]=== [2020-10-26 03:58:05,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:05,983 INFO L82 PathProgramCache]: Analyzing trace with hash -164424272, now seen corresponding path program 1 times [2020-10-26 03:58:05,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:05,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784939925] [2020-10-26 03:58:05,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:06,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:06,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:06,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784939925] [2020-10-26 03:58:06,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:06,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-26 03:58:06,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367023794] [2020-10-26 03:58:06,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 03:58:06,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:06,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 03:58:06,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-26 03:58:06,080 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand 5 states. [2020-10-26 03:58:06,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:06,320 INFO L93 Difference]: Finished difference Result 176 states and 188 transitions. [2020-10-26 03:58:06,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:58:06,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-26 03:58:06,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:06,322 INFO L225 Difference]: With dead ends: 176 [2020-10-26 03:58:06,322 INFO L226 Difference]: Without dead ends: 176 [2020-10-26 03:58:06,324 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 [2020-10-26 03:58:06,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-26 03:58:06,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 118. [2020-10-26 03:58:06,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-26 03:58:06,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 131 transitions. [2020-10-26 03:58:06,329 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 131 transitions. Word has length 25 [2020-10-26 03:58:06,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:06,330 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 131 transitions. [2020-10-26 03:58:06,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 03:58:06,330 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 131 transitions. [2020-10-26 03:58:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-26 03:58:06,334 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:06,334 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] [2020-10-26 03:58:06,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 03:58:06,335 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]=== [2020-10-26 03:58:06,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:06,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1467215118, now seen corresponding path program 1 times [2020-10-26 03:58:06,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:06,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124783850] [2020-10-26 03:58:06,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:06,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:06,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124783850] [2020-10-26 03:58:06,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:06,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 03:58:06,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263086107] [2020-10-26 03:58:06,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 03:58:06,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:06,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 03:58:06,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-26 03:58:06,434 INFO L87 Difference]: Start difference. First operand 118 states and 131 transitions. Second operand 6 states. [2020-10-26 03:58:06,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:06,668 INFO L93 Difference]: Finished difference Result 117 states and 128 transitions. [2020-10-26 03:58:06,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 03:58:06,668 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-10-26 03:58:06,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:06,669 INFO L225 Difference]: With dead ends: 117 [2020-10-26 03:58:06,669 INFO L226 Difference]: Without dead ends: 117 [2020-10-26 03:58:06,670 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 [2020-10-26 03:58:06,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-26 03:58:06,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-26 03:58:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-26 03:58:06,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 128 transitions. [2020-10-26 03:58:06,675 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 128 transitions. Word has length 30 [2020-10-26 03:58:06,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:06,675 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 128 transitions. [2020-10-26 03:58:06,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 03:58:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 128 transitions. [2020-10-26 03:58:06,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-26 03:58:06,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:06,679 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] [2020-10-26 03:58:06,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-26 03:58:06,680 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]=== [2020-10-26 03:58:06,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:06,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1435698162, now seen corresponding path program 1 times [2020-10-26 03:58:06,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:06,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509700496] [2020-10-26 03:58:06,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:07,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:07,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509700496] [2020-10-26 03:58:07,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:07,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-26 03:58:07,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123568708] [2020-10-26 03:58:07,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 03:58:07,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:07,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 03:58:07,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-26 03:58:07,064 INFO L87 Difference]: Start difference. First operand 117 states and 128 transitions. Second operand 13 states. [2020-10-26 03:58:07,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:07,705 INFO L93 Difference]: Finished difference Result 214 states and 225 transitions. [2020-10-26 03:58:07,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-26 03:58:07,706 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-10-26 03:58:07,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:07,708 INFO L225 Difference]: With dead ends: 214 [2020-10-26 03:58:07,708 INFO L226 Difference]: Without dead ends: 214 [2020-10-26 03:58:07,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2020-10-26 03:58:07,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-10-26 03:58:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 132. [2020-10-26 03:58:07,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-10-26 03:58:07,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 144 transitions. [2020-10-26 03:58:07,714 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 144 transitions. Word has length 30 [2020-10-26 03:58:07,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:07,715 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 144 transitions. [2020-10-26 03:58:07,715 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 03:58:07,715 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 144 transitions. [2020-10-26 03:58:07,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-26 03:58:07,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:07,716 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] [2020-10-26 03:58:07,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-26 03:58:07,717 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]=== [2020-10-26 03:58:07,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:07,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1761789926, now seen corresponding path program 1 times [2020-10-26 03:58:07,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:07,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90743727] [2020-10-26 03:58:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:07,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:07,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:07,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90743727] [2020-10-26 03:58:07,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:07,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-26 03:58:07,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561989932] [2020-10-26 03:58:07,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 03:58:07,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:07,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 03:58:07,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-26 03:58:07,906 INFO L87 Difference]: Start difference. First operand 132 states and 144 transitions. Second operand 13 states. [2020-10-26 03:58:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:08,661 INFO L93 Difference]: Finished difference Result 181 states and 192 transitions. [2020-10-26 03:58:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-26 03:58:08,662 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-10-26 03:58:08,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:08,663 INFO L225 Difference]: With dead ends: 181 [2020-10-26 03:58:08,663 INFO L226 Difference]: Without dead ends: 181 [2020-10-26 03:58:08,664 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 [2020-10-26 03:58:08,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-10-26 03:58:08,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 138. [2020-10-26 03:58:08,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-26 03:58:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 151 transitions. [2020-10-26 03:58:08,669 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 151 transitions. Word has length 31 [2020-10-26 03:58:08,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:08,669 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 151 transitions. [2020-10-26 03:58:08,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 03:58:08,669 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 151 transitions. [2020-10-26 03:58:08,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-26 03:58:08,670 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:08,670 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] [2020-10-26 03:58:08,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-26 03:58:08,670 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]=== [2020-10-26 03:58:08,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:08,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1761789927, now seen corresponding path program 1 times [2020-10-26 03:58:08,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:08,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261462340] [2020-10-26 03:58:08,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:08,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 03:58:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 03:58:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 03:58:08,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261462340] [2020-10-26 03:58:08,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 03:58:08,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-26 03:58:08,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083727905] [2020-10-26 03:58:08,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-26 03:58:08,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 03:58:08,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-26 03:58:08,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-10-26 03:58:08,880 INFO L87 Difference]: Start difference. First operand 138 states and 151 transitions. Second operand 13 states. [2020-10-26 03:58:09,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 03:58:09,787 INFO L93 Difference]: Finished difference Result 212 states and 223 transitions. [2020-10-26 03:58:09,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-26 03:58:09,787 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2020-10-26 03:58:09,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 03:58:09,789 INFO L225 Difference]: With dead ends: 212 [2020-10-26 03:58:09,789 INFO L226 Difference]: Without dead ends: 212 [2020-10-26 03:58:09,790 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 [2020-10-26 03:58:09,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-10-26 03:58:09,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 138. [2020-10-26 03:58:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-26 03:58:09,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2020-10-26 03:58:09,796 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 31 [2020-10-26 03:58:09,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 03:58:09,796 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2020-10-26 03:58:09,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-26 03:58:09,797 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2020-10-26 03:58:09,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-26 03:58:09,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 03:58:09,798 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] [2020-10-26 03:58:09,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-26 03:58:09,798 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]=== [2020-10-26 03:58:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 03:58:09,799 INFO L82 PathProgramCache]: Analyzing trace with hash 423103229, now seen corresponding path program 1 times [2020-10-26 03:58:09,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 03:58:09,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154224394] [2020-10-26 03:58:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 03:58:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:58:09,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:58:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 03:58:09,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 03:58:09,904 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 03:58:09,905 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 03:58:09,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-26 03:58:09,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:58:09 BoogieIcfgContainer [2020-10-26 03:58:09,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:58:09,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:58:09,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:58:09,952 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:58:09,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:56" (3/4) ... [2020-10-26 03:58:09,956 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 03:58:10,008 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:58:10,010 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:58:10,013 INFO L168 Benchmark]: Toolchain (without parser) took 15078.85 ms. Allocated memory was 46.1 MB in the beginning and 211.8 MB in the end (delta: 165.7 MB). Free memory was 28.7 MB in the beginning and 184.3 MB in the end (delta: -155.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:10,014 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 37.7 MB. Free memory was 20.7 MB in the beginning and 20.6 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:58:10,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 588.41 ms. Allocated memory is still 46.1 MB. Free memory was 28.1 MB in the beginning and 26.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:10,021 INFO L168 Benchmark]: Boogie Preprocessor took 129.67 ms. Allocated memory is still 46.1 MB. Free memory was 26.4 MB in the beginning and 23.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:10,022 INFO L168 Benchmark]: RCFGBuilder took 1197.86 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 28.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:10,025 INFO L168 Benchmark]: TraceAbstraction took 13092.28 ms. Allocated memory was 56.6 MB in the beginning and 211.8 MB in the end (delta: 155.2 MB). Free memory was 27.7 MB in the beginning and 187.5 MB in the end (delta: -159.8 MB). Peak memory consumption was 98.6 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:10,026 INFO L168 Benchmark]: Witness Printer took 58.91 ms. Allocated memory is still 211.8 MB. Free memory was 187.5 MB in the beginning and 184.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 03:58:10,032 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 37.7 MB. Free memory was 20.7 MB in the beginning and 20.6 MB in the end (delta: 27.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 588.41 ms. Allocated memory is still 46.1 MB. Free memory was 28.1 MB in the beginning and 26.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 129.67 ms. Allocated memory is still 46.1 MB. Free memory was 26.4 MB in the beginning and 23.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1197.86 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.4 MB in the beginning and 28.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 13092.28 ms. Allocated memory was 56.6 MB in the beginning and 211.8 MB in the end (delta: 155.2 MB). Free memory was 27.7 MB in the beginning and 187.5 MB in the end (delta: -159.8 MB). Peak memory consumption was 98.6 MB. Max. memory is 16.1 GB. * Witness Printer took 58.91 ms. Allocated memory is still 211.8 MB. Free memory was 187.5 MB in the beginning and 184.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 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: 12.9s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 9.5s, 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, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.9s 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, 2.2s 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...