./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-optional-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-optional-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b441a4213b4a827a391c87a88efb5ed98112599 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-a4ecdab [2020-11-29 21:20:33,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:20:33,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:20:33,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:20:33,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:20:33,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:20:33,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:20:33,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:20:33,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:20:33,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:20:33,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:20:33,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:20:33,578 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:20:33,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:20:33,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:20:33,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:20:33,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:20:33,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:20:33,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:20:33,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:20:33,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:20:33,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:20:33,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:20:33,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:20:33,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:20:33,617 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:20:33,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:20:33,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:20:33,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:20:33,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:20:33,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:20:33,623 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:20:33,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:20:33,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:20:33,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:20:33,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:20:33,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:20:33,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:20:33,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:20:33,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:20:33,630 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:20:33,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2020-11-29 21:20:33,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:20:33,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:20:33,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:20:33,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:20:33,683 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:20:33,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:20:33,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:20:33,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:20:33,684 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:20:33,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:20:33,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:20:33,686 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 21:20:33,686 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 21:20:33,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:20:33,686 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-29 21:20:33,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:20:33,687 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:20:33,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:20:33,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:20:33,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:20:33,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:20:33,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:20:33,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:20:33,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:20:33,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:20:33,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:20:33,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:20:33,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b441a4213b4a827a391c87a88efb5ed98112599 [2020-11-29 21:20:34,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:20:34,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:20:34,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:20:34,107 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:20:34,108 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:20:34,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/../../sv-benchmarks/c/forester-heap/dll-optional-2.i [2020-11-29 21:20:34,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/data/4df3e613c/93d814cff5074ce8adddf98efbcfc49b/FLAG07a3bd505 [2020-11-29 21:20:34,874 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:20:34,875 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/sv-benchmarks/c/forester-heap/dll-optional-2.i [2020-11-29 21:20:34,903 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/data/4df3e613c/93d814cff5074ce8adddf98efbcfc49b/FLAG07a3bd505 [2020-11-29 21:20:35,131 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/data/4df3e613c/93d814cff5074ce8adddf98efbcfc49b [2020-11-29 21:20:35,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:20:35,137 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-29 21:20:35,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:20:35,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:20:35,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:20:35,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a2bfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35, skipping insertion in model container [2020-11-29 21:20:35,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:20:35,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:20:35,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:20:35,630 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:20:35,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:20:35,764 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:20:35,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35 WrapperNode [2020-11-29 21:20:35,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:20:35,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:20:35,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:20:35,768 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:20:35,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (1/1) ... [2020-11-29 21:20:35,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:20:35,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:20:35,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:20:35,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:20:35,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:20:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-29 21:20:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:20:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-29 21:20:35,912 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-29 21:20:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-11-29 21:20:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-11-29 21:20:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-11-29 21:20:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-11-29 21:20:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-11-29 21:20:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-11-29 21:20:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-11-29 21:20:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-11-29 21:20:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-11-29 21:20:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-11-29 21:20:35,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-11-29 21:20:35,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-11-29 21:20:35,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-11-29 21:20:35,915 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-11-29 21:20:35,915 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-11-29 21:20:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-11-29 21:20:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-11-29 21:20:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-11-29 21:20:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-11-29 21:20:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-11-29 21:20:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-11-29 21:20:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 21:20:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-11-29 21:20:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-11-29 21:20:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-11-29 21:20:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-11-29 21:20:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-11-29 21:20:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-11-29 21:20:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-11-29 21:20:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-11-29 21:20:35,918 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-11-29 21:20:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-11-29 21:20:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-11-29 21:20:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-11-29 21:20:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-11-29 21:20:35,919 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-11-29 21:20:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-11-29 21:20:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-11-29 21:20:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-11-29 21:20:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-11-29 21:20:35,920 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-11-29 21:20:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-11-29 21:20:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-11-29 21:20:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-11-29 21:20:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-11-29 21:20:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-11-29 21:20:35,921 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-11-29 21:20:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-11-29 21:20:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-11-29 21:20:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-11-29 21:20:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-29 21:20:35,922 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-11-29 21:20:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-11-29 21:20:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-29 21:20:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2020-11-29 21:20:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-11-29 21:20:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-11-29 21:20:35,923 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-11-29 21:20:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-11-29 21:20:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-29 21:20:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-11-29 21:20:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-11-29 21:20:35,924 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-11-29 21:20:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-29 21:20:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-11-29 21:20:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-11-29 21:20:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-11-29 21:20:35,925 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-11-29 21:20:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-11-29 21:20:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-11-29 21:20:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-11-29 21:20:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-11-29 21:20:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-11-29 21:20:35,926 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-11-29 21:20:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-11-29 21:20:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-11-29 21:20:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-11-29 21:20:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-11-29 21:20:35,927 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-11-29 21:20:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-11-29 21:20:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-11-29 21:20:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-11-29 21:20:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-11-29 21:20:35,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-11-29 21:20:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-11-29 21:20:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-11-29 21:20:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-11-29 21:20:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-11-29 21:20:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-11-29 21:20:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-11-29 21:20:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-11-29 21:20:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-11-29 21:20:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-11-29 21:20:35,930 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-11-29 21:20:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-11-29 21:20:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-11-29 21:20:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-11-29 21:20:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-11-29 21:20:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-11-29 21:20:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-11-29 21:20:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-11-29 21:20:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-11-29 21:20:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-11-29 21:20:35,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-29 21:20:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-29 21:20:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-11-29 21:20:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-11-29 21:20:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-29 21:20:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:20:35,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-29 21:20:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 21:20:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 21:20:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 21:20:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 21:20:35,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:20:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:20:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-29 21:20:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:20:35,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:20:36,832 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:20:36,835 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 21:20:36,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:20:36 BoogieIcfgContainer [2020-11-29 21:20:36,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:20:36,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:20:36,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:20:36,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:20:36,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:20:35" (1/3) ... [2020-11-29 21:20:36,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313d0450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:20:36, skipping insertion in model container [2020-11-29 21:20:36,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:20:35" (2/3) ... [2020-11-29 21:20:36,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@313d0450 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:20:36, skipping insertion in model container [2020-11-29 21:20:36,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:20:36" (3/3) ... [2020-11-29 21:20:36,856 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-optional-2.i [2020-11-29 21:20:36,867 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:20:36,872 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 66 error locations. [2020-11-29 21:20:36,885 INFO L253 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2020-11-29 21:20:36,918 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:20:36,918 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-29 21:20:36,918 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:20:36,919 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:20:36,919 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:20:36,919 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:20:36,925 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:20:36,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:20:36,954 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2020-11-29 21:20:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 21:20:36,964 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:36,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:36,965 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:36,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:36,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1933544382, now seen corresponding path program 1 times [2020-11-29 21:20:36,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:36,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157040333] [2020-11-29 21:20:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:37,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:37,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:37,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:37,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157040333] [2020-11-29 21:20:37,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:37,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:20:37,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416459115] [2020-11-29 21:20:37,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:20:37,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:37,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:20:37,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:20:37,288 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 4 states. [2020-11-29 21:20:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:37,806 INFO L93 Difference]: Finished difference Result 142 states and 151 transitions. [2020-11-29 21:20:37,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:20:37,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 21:20:37,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:37,833 INFO L225 Difference]: With dead ends: 142 [2020-11-29 21:20:37,833 INFO L226 Difference]: Without dead ends: 138 [2020-11-29 21:20:37,835 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 [2020-11-29 21:20:37,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-11-29 21:20:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 132. [2020-11-29 21:20:37,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-29 21:20:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 142 transitions. [2020-11-29 21:20:37,915 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 142 transitions. Word has length 7 [2020-11-29 21:20:37,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:37,916 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 142 transitions. [2020-11-29 21:20:37,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:20:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 142 transitions. [2020-11-29 21:20:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 21:20:37,916 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:37,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:37,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:20:37,917 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:37,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1933544381, now seen corresponding path program 1 times [2020-11-29 21:20:37,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:37,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916748055] [2020-11-29 21:20:37,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:38,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:38,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916748055] [2020-11-29 21:20:38,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:38,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 21:20:38,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246870379] [2020-11-29 21:20:38,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:20:38,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:38,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:20:38,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:20:38,097 INFO L87 Difference]: Start difference. First operand 132 states and 142 transitions. Second operand 4 states. [2020-11-29 21:20:38,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:38,520 INFO L93 Difference]: Finished difference Result 127 states and 137 transitions. [2020-11-29 21:20:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:20:38,521 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-29 21:20:38,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:38,523 INFO L225 Difference]: With dead ends: 127 [2020-11-29 21:20:38,523 INFO L226 Difference]: Without dead ends: 127 [2020-11-29 21:20:38,524 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 [2020-11-29 21:20:38,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-29 21:20:38,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2020-11-29 21:20:38,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-11-29 21:20:38,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2020-11-29 21:20:38,533 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 7 [2020-11-29 21:20:38,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:38,533 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2020-11-29 21:20:38,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:20:38,534 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2020-11-29 21:20:38,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 21:20:38,534 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:38,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:38,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:20:38,535 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:38,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:38,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1743125386, now seen corresponding path program 1 times [2020-11-29 21:20:38,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:38,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812099414] [2020-11-29 21:20:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:38,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:38,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:38,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812099414] [2020-11-29 21:20:38,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:38,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:20:38,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230670180] [2020-11-29 21:20:38,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:20:38,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:38,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:20:38,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:20:38,717 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand 6 states. [2020-11-29 21:20:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:39,513 INFO L93 Difference]: Finished difference Result 243 states and 264 transitions. [2020-11-29 21:20:39,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 21:20:39,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-29 21:20:39,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:39,529 INFO L225 Difference]: With dead ends: 243 [2020-11-29 21:20:39,529 INFO L226 Difference]: Without dead ends: 243 [2020-11-29 21:20:39,529 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 [2020-11-29 21:20:39,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-11-29 21:20:39,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 122. [2020-11-29 21:20:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-29 21:20:39,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2020-11-29 21:20:39,544 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 15 [2020-11-29 21:20:39,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:39,544 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2020-11-29 21:20:39,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:20:39,544 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2020-11-29 21:20:39,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 21:20:39,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:39,545 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:39,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:20:39,546 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:39,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:39,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1743125387, now seen corresponding path program 1 times [2020-11-29 21:20:39,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:39,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617803683] [2020-11-29 21:20:39,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:39,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:39,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:39,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617803683] [2020-11-29 21:20:39,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:39,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:20:39,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750791801] [2020-11-29 21:20:39,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:20:39,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:39,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:20:39,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:20:39,685 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand 6 states. [2020-11-29 21:20:40,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:40,470 INFO L93 Difference]: Finished difference Result 218 states and 237 transitions. [2020-11-29 21:20:40,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 21:20:40,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-29 21:20:40,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:40,473 INFO L225 Difference]: With dead ends: 218 [2020-11-29 21:20:40,473 INFO L226 Difference]: Without dead ends: 218 [2020-11-29 21:20:40,473 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 [2020-11-29 21:20:40,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-29 21:20:40,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 121. [2020-11-29 21:20:40,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-11-29 21:20:40,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2020-11-29 21:20:40,483 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 15 [2020-11-29 21:20:40,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:40,484 INFO L481 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2020-11-29 21:20:40,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:20:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2020-11-29 21:20:40,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 21:20:40,484 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:40,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:40,485 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:20:40,485 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:40,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:40,486 INFO L82 PathProgramCache]: Analyzing trace with hash 238648569, now seen corresponding path program 1 times [2020-11-29 21:20:40,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:40,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558919442] [2020-11-29 21:20:40,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:40,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:40,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:40,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558919442] [2020-11-29 21:20:40,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:40,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:20:40,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659556034] [2020-11-29 21:20:40,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 21:20:40,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:40,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:20:40,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:20:40,583 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand 5 states. [2020-11-29 21:20:40,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:40,898 INFO L93 Difference]: Finished difference Result 124 states and 133 transitions. [2020-11-29 21:20:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:20:40,902 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-29 21:20:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:40,903 INFO L225 Difference]: With dead ends: 124 [2020-11-29 21:20:40,903 INFO L226 Difference]: Without dead ends: 124 [2020-11-29 21:20:40,904 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 [2020-11-29 21:20:40,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-11-29 21:20:40,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 115. [2020-11-29 21:20:40,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 21:20:40,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 130 transitions. [2020-11-29 21:20:40,911 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 130 transitions. Word has length 17 [2020-11-29 21:20:40,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:40,912 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 130 transitions. [2020-11-29 21:20:40,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 21:20:40,912 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 130 transitions. [2020-11-29 21:20:40,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 21:20:40,913 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:40,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:40,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 21:20:40,913 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:40,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:40,914 INFO L82 PathProgramCache]: Analyzing trace with hash 238648570, now seen corresponding path program 1 times [2020-11-29 21:20:40,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:40,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788924232] [2020-11-29 21:20:40,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:41,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:41,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788924232] [2020-11-29 21:20:41,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:41,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:20:41,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075906615] [2020-11-29 21:20:41,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 21:20:41,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:41,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:20:41,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:20:41,068 INFO L87 Difference]: Start difference. First operand 115 states and 130 transitions. Second operand 5 states. [2020-11-29 21:20:41,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:41,439 INFO L93 Difference]: Finished difference Result 159 states and 175 transitions. [2020-11-29 21:20:41,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:20:41,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-29 21:20:41,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:41,441 INFO L225 Difference]: With dead ends: 159 [2020-11-29 21:20:41,441 INFO L226 Difference]: Without dead ends: 159 [2020-11-29 21:20:41,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:20:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-11-29 21:20:41,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 136. [2020-11-29 21:20:41,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-11-29 21:20:41,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 157 transitions. [2020-11-29 21:20:41,449 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 157 transitions. Word has length 17 [2020-11-29 21:20:41,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:41,449 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 157 transitions. [2020-11-29 21:20:41,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 21:20:41,449 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 157 transitions. [2020-11-29 21:20:41,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 21:20:41,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:41,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:41,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 21:20:41,451 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:41,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:41,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1708009404, now seen corresponding path program 1 times [2020-11-29 21:20:41,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:41,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984077424] [2020-11-29 21:20:41,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:41,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:41,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984077424] [2020-11-29 21:20:41,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:41,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:20:41,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045782140] [2020-11-29 21:20:41,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:20:41,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:41,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:20:41,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:20:41,570 INFO L87 Difference]: Start difference. First operand 136 states and 157 transitions. Second operand 6 states. [2020-11-29 21:20:41,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:41,976 INFO L93 Difference]: Finished difference Result 180 states and 207 transitions. [2020-11-29 21:20:41,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:20:41,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-11-29 21:20:41,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:41,978 INFO L225 Difference]: With dead ends: 180 [2020-11-29 21:20:41,978 INFO L226 Difference]: Without dead ends: 180 [2020-11-29 21:20:41,979 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 [2020-11-29 21:20:41,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-29 21:20:41,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 135. [2020-11-29 21:20:41,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-11-29 21:20:41,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 155 transitions. [2020-11-29 21:20:41,985 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 155 transitions. Word has length 19 [2020-11-29 21:20:41,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:41,986 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 155 transitions. [2020-11-29 21:20:41,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:20:41,986 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 155 transitions. [2020-11-29 21:20:41,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 21:20:41,987 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:41,987 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:20:41,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 21:20:41,987 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:41,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:41,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1708009405, now seen corresponding path program 1 times [2020-11-29 21:20:41,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:41,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147288572] [2020-11-29 21:20:41,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:42,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:42,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147288572] [2020-11-29 21:20:42,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:42,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:20:42,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762625893] [2020-11-29 21:20:42,093 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:20:42,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:42,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:20:42,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:20:42,094 INFO L87 Difference]: Start difference. First operand 135 states and 155 transitions. Second operand 6 states. [2020-11-29 21:20:42,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:42,613 INFO L93 Difference]: Finished difference Result 200 states and 233 transitions. [2020-11-29 21:20:42,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 21:20:42,613 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-11-29 21:20:42,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:42,614 INFO L225 Difference]: With dead ends: 200 [2020-11-29 21:20:42,615 INFO L226 Difference]: Without dead ends: 200 [2020-11-29 21:20:42,615 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 [2020-11-29 21:20:42,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-29 21:20:42,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 134. [2020-11-29 21:20:42,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-29 21:20:42,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 153 transitions. [2020-11-29 21:20:42,621 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 153 transitions. Word has length 19 [2020-11-29 21:20:42,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:42,622 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 153 transitions. [2020-11-29 21:20:42,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:20:42,622 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 153 transitions. [2020-11-29 21:20:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 21:20:42,623 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:42,623 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] [2020-11-29 21:20:42,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 21:20:42,623 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:42,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:42,624 INFO L82 PathProgramCache]: Analyzing trace with hash 776500473, now seen corresponding path program 1 times [2020-11-29 21:20:42,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:42,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312274484] [2020-11-29 21:20:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:42,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:42,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:42,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312274484] [2020-11-29 21:20:42,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:42,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 21:20:42,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744146430] [2020-11-29 21:20:42,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 21:20:42,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:42,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:20:42,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:20:42,801 INFO L87 Difference]: Start difference. First operand 134 states and 153 transitions. Second operand 5 states. [2020-11-29 21:20:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:43,134 INFO L93 Difference]: Finished difference Result 150 states and 166 transitions. [2020-11-29 21:20:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:20:43,135 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-11-29 21:20:43,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:43,136 INFO L225 Difference]: With dead ends: 150 [2020-11-29 21:20:43,136 INFO L226 Difference]: Without dead ends: 150 [2020-11-29 21:20:43,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:20:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-11-29 21:20:43,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 134. [2020-11-29 21:20:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-29 21:20:43,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 151 transitions. [2020-11-29 21:20:43,144 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 151 transitions. Word has length 22 [2020-11-29 21:20:43,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:43,144 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 151 transitions. [2020-11-29 21:20:43,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 21:20:43,144 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 151 transitions. [2020-11-29 21:20:43,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 21:20:43,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:43,145 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] [2020-11-29 21:20:43,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 21:20:43,146 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:43,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:43,146 INFO L82 PathProgramCache]: Analyzing trace with hash -19822210, now seen corresponding path program 1 times [2020-11-29 21:20:43,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:43,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974645771] [2020-11-29 21:20:43,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:43,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:43,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:43,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:43,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974645771] [2020-11-29 21:20:43,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:43,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-29 21:20:43,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493424002] [2020-11-29 21:20:43,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 21:20:43,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:43,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 21:20:43,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-29 21:20:43,342 INFO L87 Difference]: Start difference. First operand 134 states and 151 transitions. Second operand 10 states. [2020-11-29 21:20:44,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:44,104 INFO L93 Difference]: Finished difference Result 135 states and 150 transitions. [2020-11-29 21:20:44,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 21:20:44,106 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-11-29 21:20:44,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:44,107 INFO L225 Difference]: With dead ends: 135 [2020-11-29 21:20:44,107 INFO L226 Difference]: Without dead ends: 135 [2020-11-29 21:20:44,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-11-29 21:20:44,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-11-29 21:20:44,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-11-29 21:20:44,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-11-29 21:20:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 150 transitions. [2020-11-29 21:20:44,112 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 150 transitions. Word has length 23 [2020-11-29 21:20:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:44,112 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 150 transitions. [2020-11-29 21:20:44,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 21:20:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 150 transitions. [2020-11-29 21:20:44,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 21:20:44,116 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:44,116 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] [2020-11-29 21:20:44,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 21:20:44,117 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:44,120 INFO L82 PathProgramCache]: Analyzing trace with hash -19822209, now seen corresponding path program 1 times [2020-11-29 21:20:44,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:44,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202651726] [2020-11-29 21:20:44,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:44,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-29 21:20:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:20:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:20:44,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202651726] [2020-11-29 21:20:44,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:20:44,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-29 21:20:44,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406737374] [2020-11-29 21:20:44,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-29 21:20:44,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:20:44,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-29 21:20:44,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-11-29 21:20:44,422 INFO L87 Difference]: Start difference. First operand 133 states and 150 transitions. Second operand 11 states. [2020-11-29 21:20:45,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:20:45,399 INFO L93 Difference]: Finished difference Result 126 states and 141 transitions. [2020-11-29 21:20:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-29 21:20:45,400 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-11-29 21:20:45,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:20:45,401 INFO L225 Difference]: With dead ends: 126 [2020-11-29 21:20:45,401 INFO L226 Difference]: Without dead ends: 126 [2020-11-29 21:20:45,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2020-11-29 21:20:45,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-29 21:20:45,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 115. [2020-11-29 21:20:45,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-11-29 21:20:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 131 transitions. [2020-11-29 21:20:45,406 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 131 transitions. Word has length 23 [2020-11-29 21:20:45,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:20:45,406 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 131 transitions. [2020-11-29 21:20:45,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-29 21:20:45,407 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 131 transitions. [2020-11-29 21:20:45,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 21:20:45,407 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:20:45,408 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] [2020-11-29 21:20:45,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 21:20:45,408 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr51REQUIRES_VIOLATION, mainErr9REQUIRES_VIOLATION, mainErr30REQUIRES_VIOLATION, mainErr5REQUIRES_VIOLATION, mainErr26REQUIRES_VIOLATION, mainErr28REQUIRES_VIOLATION, mainErr7REQUIRES_VIOLATION, mainErr49REQUIRES_VIOLATION, mainErr24REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr45REQUIRES_VIOLATION, mainErr47REQUIRES_VIOLATION, mainErr61ASSERT_VIOLATIONMEMORY_FREE, mainErr43REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr22REQUIRES_VIOLATION, mainErr19REQUIRES_VIOLATION, mainErr40REQUIRES_VIOLATION, mainErr59ASSERT_VIOLATIONMEMORY_FREE, mainErr17REQUIRES_VIOLATION, mainErr38REQUIRES_VIOLATION, mainErr57REQUIRES_VIOLATION, mainErr13REQUIRES_VIOLATION, mainErr34REQUIRES_VIOLATION, mainErr15REQUIRES_VIOLATION, mainErr36REQUIRES_VIOLATION, mainErr60ASSERT_VIOLATIONMEMORY_FREE, mainErr32REQUIRES_VIOLATION, mainErr11REQUIRES_VIOLATION, mainErr53REQUIRES_VIOLATION, mainErr55REQUIRES_VIOLATION, mainErr8REQUIRES_VIOLATION, mainErr29REQUIRES_VIOLATION, mainErr50REQUIRES_VIOLATION, mainErr58ASSERT_VIOLATIONMEMORY_FREE, mainErr31REQUIRES_VIOLATION, mainErr52REQUIRES_VIOLATION, mainErr64ENSURES_VIOLATIONMEMORY_LEAK, mainErr27REQUIRES_VIOLATION, mainErr48REQUIRES_VIOLATION, mainErr6REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION, mainErr25REQUIRES_VIOLATION, mainErr46REQUIRES_VIOLATION, mainErr0REQUIRES_VIOLATION, mainErr21REQUIRES_VIOLATION, mainErr42REQUIRES_VIOLATION, mainErr63ASSERT_VIOLATIONMEMORY_FREE, mainErr23REQUIRES_VIOLATION, mainErr44REQUIRES_VIOLATION, mainErr18REQUIRES_VIOLATION, mainErr20REQUIRES_VIOLATION, mainErr41REQUIRES_VIOLATION, mainErr16REQUIRES_VIOLATION, mainErr37REQUIRES_VIOLATION, mainErr39REQUIRES_VIOLATION, mainErr35REQUIRES_VIOLATION, mainErr62ASSERT_VIOLATIONMEMORY_FREE, mainErr14REQUIRES_VIOLATION, mainErr56REQUIRES_VIOLATION, mainErr10REQUIRES_VIOLATION, mainErr12REQUIRES_VIOLATION, mainErr33REQUIRES_VIOLATION, mainErr54REQUIRES_VIOLATION]=== [2020-11-29 21:20:45,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:20:45,412 INFO L82 PathProgramCache]: Analyzing trace with hash 425134885, now seen corresponding path program 1 times [2020-11-29 21:20:45,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:20:45,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842292175] [2020-11-29 21:20:45,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:20:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:20:45,443 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:20:45,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:20:45,468 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:20:45,517 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:20:45,517 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:20:45,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-29 21:20:45,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:20:45 BoogieIcfgContainer [2020-11-29 21:20:45,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:20:45,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:20:45,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:20:45,577 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:20:45,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:20:36" (3/4) ... [2020-11-29 21:20:45,580 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 21:20:45,651 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3ac92bdd-f58c-44d9-8444-627beed59e89/bin/uautomizer/witness.graphml [2020-11-29 21:20:45,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:20:45,654 INFO L168 Benchmark]: Toolchain (without parser) took 10515.21 ms. Allocated memory was 109.1 MB in the beginning and 169.9 MB in the end (delta: 60.8 MB). Free memory was 71.7 MB in the beginning and 47.1 MB in the end (delta: 24.6 MB). Peak memory consumption was 83.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:45,655 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 109.1 MB. Free memory was 81.3 MB in the beginning and 81.3 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:20:45,656 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.12 ms. Allocated memory is still 109.1 MB. Free memory was 71.6 MB in the beginning and 71.7 MB in the end (delta: -114.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:45,672 INFO L168 Benchmark]: Boogie Preprocessor took 77.89 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 68.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:45,673 INFO L168 Benchmark]: RCFGBuilder took 992.91 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 68.8 MB in the beginning and 86.0 MB in the end (delta: -17.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:45,674 INFO L168 Benchmark]: TraceAbstraction took 8734.34 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 86.0 MB in the beginning and 49.2 MB in the end (delta: 36.8 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:20:45,674 INFO L168 Benchmark]: Witness Printer took 74.48 ms. Allocated memory is still 169.9 MB. Free memory was 49.2 MB in the beginning and 47.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:20:45,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 109.1 MB. Free memory was 81.3 MB in the beginning and 81.3 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 625.12 ms. Allocated memory is still 109.1 MB. Free memory was 71.6 MB in the beginning and 71.7 MB in the end (delta: -114.3 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.89 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 68.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 992.91 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 68.8 MB in the beginning and 86.0 MB in the end (delta: -17.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8734.34 ms. Allocated memory was 140.5 MB in the beginning and 169.9 MB in the end (delta: 29.4 MB). Free memory was 86.0 MB in the beginning and 49.2 MB in the end (delta: 36.8 MB). Peak memory consumption was 67.2 MB. Max. memory is 16.1 GB. * Witness Printer took 74.48 ms. Allocated memory is still 169.9 MB. Free memory was 49.2 MB in the beginning and 47.1 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L997] SLL* head = malloc(sizeof(SLL)); VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L998] head->next = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L999] head->prev = ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1000] COND FALSE !(__VERIFIER_nondet_int()) [L1000] head->data = 0 VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1000] head->opt = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}] [L1001] SLL* x = head; VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1003] COND FALSE !(__VERIFIER_nondet_int()) [L1006] x = head VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1007] COND TRUE x != ((void*)0) VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}] [L1009] EXPR x->data VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0] [L1009] EXPR x->data == 2 && x->opt == x VAL [head={-1:0}, malloc(sizeof(SLL))={-1:0}, x={-1:0}, x->data=0, x->data == 2 && x->opt == x=0] [L1009] COND TRUE !(x->data == 2 && x->opt == x) [L1009] CALL reach_error() [L985] COND FALSE !(0) [L985] __assert_fail ("0", "dll-optional-2.c", 16, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 145 locations, 66 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.6s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1017 SDtfs, 1309 SDslu, 1661 SDs, 0 SdLazy, 4077 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=145occurred in iteration=0, 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, 11 MinimizatonAttempts, 400 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 16939 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...