./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD --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 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-b2eff8b [2021-10-29 00:00:52,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:00:52,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:00:53,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:00:53,067 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:00:53,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:00:53,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:00:53,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:00:53,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:00:53,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:00:53,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:00:53,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:00:53,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:00:53,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:00:53,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:00:53,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:00:53,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:00:53,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:00:53,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:00:53,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:00:53,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:00:53,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:00:53,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:00:53,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:00:53,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:00:53,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:00:53,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:00:53,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:00:53,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:00:53,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:00:53,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:00:53,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:00:53,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:00:53,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:00:53,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:00:53,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:00:53,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:00:53,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:00:53,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:00:53,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:00:53,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:00:53,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-10-29 00:00:53,223 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:00:53,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:00:53,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:00:53,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:00:53,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:00:53,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:00:53,227 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:00:53,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:00:53,228 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:00:53,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 00:00:53,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:00:53,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:00:53,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:00:53,231 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 00:00:53,231 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 00:00:53,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:00:53,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 00:00:53,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:00:53,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:00:53,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:00:53,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:00:53,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:00:53,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:00:53,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:00:53,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:00:53,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:00:53,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 00:00:53,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:00:53,235 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_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 [2021-10-29 00:00:53,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:00:53,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:00:53,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:00:53,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:00:53,683 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:00:53,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/forester-heap/sll-token-1.i [2021-10-29 00:00:53,781 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/data/8b088ad8a/933b45b7ff6a4e849b3941c27c12ec0f/FLAG77aae1475 [2021-10-29 00:00:54,517 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:00:54,518 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i [2021-10-29 00:00:54,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/data/8b088ad8a/933b45b7ff6a4e849b3941c27c12ec0f/FLAG77aae1475 [2021-10-29 00:00:54,749 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/data/8b088ad8a/933b45b7ff6a4e849b3941c27c12ec0f [2021-10-29 00:00:54,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:00:54,757 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-29 00:00:54,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:00:54,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:00:54,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:00:54,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:54" (1/1) ... [2021-10-29 00:00:54,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675d6c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:54, skipping insertion in model container [2021-10-29 00:00:54,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:54" (1/1) ... [2021-10-29 00:00:54,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:00:54,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:00:55,222 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22162,22175] [2021-10-29 00:00:55,228 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22311,22324] [2021-10-29 00:00:55,230 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22402,22415] [2021-10-29 00:00:55,231 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22484,22497] [2021-10-29 00:00:55,233 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22562,22575] [2021-10-29 00:00:55,237 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22708,22721] [2021-10-29 00:00:55,240 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:00:55,250 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:00:55,291 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22162,22175] [2021-10-29 00:00:55,293 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22311,22324] [2021-10-29 00:00:55,295 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22402,22415] [2021-10-29 00:00:55,296 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22484,22497] [2021-10-29 00:00:55,298 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22562,22575] [2021-10-29 00:00:55,300 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/sv-benchmarks/c/forester-heap/sll-token-1.i[22708,22721] [2021-10-29 00:00:55,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:00:55,335 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:00:55,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55 WrapperNode [2021-10-29 00:00:55,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:00:55,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:00:55,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:00:55,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:00:55,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (1/1) ... [2021-10-29 00:00:55,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (1/1) ... [2021-10-29 00:00:55,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (1/1) ... [2021-10-29 00:00:55,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (1/1) ... [2021-10-29 00:00:55,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (1/1) ... [2021-10-29 00:00:55,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (1/1) ... [2021-10-29 00:00:55,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (1/1) ... [2021-10-29 00:00:55,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:00:55,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:00:55,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:00:55,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:00:55,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (1/1) ... [2021-10-29 00:00:55,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:00:55,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:00:55,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:00:55,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:00:55,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-10-29 00:00:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:00:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-10-29 00:00:55,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-10-29 00:00:55,507 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-10-29 00:00:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-10-29 00:00:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-10-29 00:00:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-10-29 00:00:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-10-29 00:00:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-10-29 00:00:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-10-29 00:00:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-10-29 00:00:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-10-29 00:00:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-10-29 00:00:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-10-29 00:00:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-10-29 00:00:55,510 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-10-29 00:00:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-10-29 00:00:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-10-29 00:00:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-10-29 00:00:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-10-29 00:00:55,511 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-10-29 00:00:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-10-29 00:00:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-10-29 00:00:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-10-29 00:00:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-10-29 00:00:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-10-29 00:00:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-10-29 00:00:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-10-29 00:00:55,513 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-10-29 00:00:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-10-29 00:00:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-10-29 00:00:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-10-29 00:00:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-10-29 00:00:55,514 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-10-29 00:00:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-10-29 00:00:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-10-29 00:00:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-10-29 00:00:55,515 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-10-29 00:00:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-10-29 00:00:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-10-29 00:00:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-10-29 00:00:55,516 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-10-29 00:00:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-10-29 00:00:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-10-29 00:00:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-10-29 00:00:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-10-29 00:00:55,517 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-10-29 00:00:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-10-29 00:00:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-10-29 00:00:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-10-29 00:00:55,518 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-10-29 00:00:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-10-29 00:00:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-10-29 00:00:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-10-29 00:00:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-10-29 00:00:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-10-29 00:00:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-10-29 00:00:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2021-10-29 00:00:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-10-29 00:00:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-10-29 00:00:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-10-29 00:00:55,521 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-10-29 00:00:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-10-29 00:00:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-10-29 00:00:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-10-29 00:00:55,522 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-10-29 00:00:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-10-29 00:00:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-10-29 00:00:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-10-29 00:00:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-10-29 00:00:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-10-29 00:00:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-10-29 00:00:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-10-29 00:00:55,524 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-10-29 00:00:55,525 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-10-29 00:00:55,525 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-10-29 00:00:55,525 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-10-29 00:00:55,525 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-10-29 00:00:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-10-29 00:00:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-10-29 00:00:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-10-29 00:00:55,526 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-10-29 00:00:55,527 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-10-29 00:00:55,527 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-10-29 00:00:55,527 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-10-29 00:00:55,527 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-10-29 00:00:55,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-10-29 00:00:55,528 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-10-29 00:00:55,528 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-10-29 00:00:55,528 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-10-29 00:00:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-10-29 00:00:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-10-29 00:00:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-10-29 00:00:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-10-29 00:00:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-10-29 00:00:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-10-29 00:00:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-10-29 00:00:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-10-29 00:00:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-10-29 00:00:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-10-29 00:00:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-10-29 00:00:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-10-29 00:00:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-10-29 00:00:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-10-29 00:00:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-10-29 00:00:55,532 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-10-29 00:00:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-10-29 00:00:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-10-29 00:00:55,533 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-10-29 00:00:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-10-29 00:00:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-10-29 00:00:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:00:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-10-29 00:00:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 00:00:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 00:00:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 00:00:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 00:00:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 00:00:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 00:00:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-10-29 00:00:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:00:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:00:56,256 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:00:56,256 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-10-29 00:00:56,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:56 BoogieIcfgContainer [2021-10-29 00:00:56,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:00:56,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:00:56,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:00:56,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:00:56,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:00:54" (1/3) ... [2021-10-29 00:00:56,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4eb3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:00:56, skipping insertion in model container [2021-10-29 00:00:56,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:55" (2/3) ... [2021-10-29 00:00:56,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d4eb3f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:00:56, skipping insertion in model container [2021-10-29 00:00:56,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:56" (3/3) ... [2021-10-29 00:00:56,285 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-token-1.i [2021-10-29 00:00:56,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:00:56,293 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2021-10-29 00:00:56,346 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:00:56,352 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 00:00:56,353 INFO L340 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2021-10-29 00:00:56,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 65 states have (on average 2.2) internal successors, (143), 119 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-29 00:00:56,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 00:00:56,381 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:56,381 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:56,382 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:00:56,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:56,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1985602549, now seen corresponding path program 1 times [2021-10-29 00:00:56,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:56,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861434874] [2021-10-29 00:00:56,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:56,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:00:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:56,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:56,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:56,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861434874] [2021-10-29 00:00:56,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861434874] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:56,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:56,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:00:56,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58090127] [2021-10-29 00:00:56,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:00:56,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:56,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:00:56,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:00:56,778 INFO L87 Difference]: Start difference. First operand has 124 states, 65 states have (on average 2.2) internal successors, (143), 119 states have internal predecessors, (143), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:57,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:57,155 INFO L93 Difference]: Finished difference Result 142 states and 145 transitions. [2021-10-29 00:00:57,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:57,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-29 00:00:57,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:57,171 INFO L225 Difference]: With dead ends: 142 [2021-10-29 00:00:57,171 INFO L226 Difference]: Without dead ends: 139 [2021-10-29 00:00:57,173 INFO L786 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 [2021-10-29 00:00:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-29 00:00:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2021-10-29 00:00:57,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 64 states have (on average 1.84375) internal successors, (118), 115 states have internal predecessors, (118), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:57,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2021-10-29 00:00:57,246 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 7 [2021-10-29 00:00:57,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:57,246 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2021-10-29 00:00:57,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:57,247 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2021-10-29 00:00:57,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 00:00:57,247 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:57,247 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:57,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 00:00:57,248 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:00:57,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:57,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1985602550, now seen corresponding path program 1 times [2021-10-29 00:00:57,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:57,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494687684] [2021-10-29 00:00:57,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:57,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:57,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:57,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:00:57,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:57,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:57,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:57,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494687684] [2021-10-29 00:00:57,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494687684] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:57,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:57,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 00:00:57,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128735127] [2021-10-29 00:00:57,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 00:00:57,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:57,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 00:00:57,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 00:00:57,420 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:57,709 INFO L93 Difference]: Finished difference Result 145 states and 147 transitions. [2021-10-29 00:00:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:00:57,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2021-10-29 00:00:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:57,716 INFO L225 Difference]: With dead ends: 145 [2021-10-29 00:00:57,716 INFO L226 Difference]: Without dead ends: 145 [2021-10-29 00:00:57,717 INFO L786 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 [2021-10-29 00:00:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-10-29 00:00:57,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 117. [2021-10-29 00:00:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 64 states have (on average 1.8125) internal successors, (116), 113 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:57,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 119 transitions. [2021-10-29 00:00:57,737 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 119 transitions. Word has length 7 [2021-10-29 00:00:57,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:57,737 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 119 transitions. [2021-10-29 00:00:57,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:57,738 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 119 transitions. [2021-10-29 00:00:57,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 00:00:57,738 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:57,739 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:57,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 00:00:57,739 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr11REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:00:57,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:57,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1770439166, now seen corresponding path program 1 times [2021-10-29 00:00:57,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:57,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215791330] [2021-10-29 00:00:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:57,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:00:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:57,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:57,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215791330] [2021-10-29 00:00:57,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215791330] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:57,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:57,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 00:00:57,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483154312] [2021-10-29 00:00:57,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:57,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:57,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:57,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:57,894 INFO L87 Difference]: Start difference. First operand 117 states and 119 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:58,170 INFO L93 Difference]: Finished difference Result 123 states and 126 transitions. [2021-10-29 00:00:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:00:58,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-10-29 00:00:58,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:58,172 INFO L225 Difference]: With dead ends: 123 [2021-10-29 00:00:58,172 INFO L226 Difference]: Without dead ends: 123 [2021-10-29 00:00:58,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-29 00:00:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2021-10-29 00:00:58,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.621212121212121) internal successors, (107), 102 states have internal predecessors, (107), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 110 transitions. [2021-10-29 00:00:58,180 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 110 transitions. Word has length 12 [2021-10-29 00:00:58,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:58,180 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 110 transitions. [2021-10-29 00:00:58,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 110 transitions. [2021-10-29 00:00:58,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 00:00:58,181 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:58,181 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:58,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 00:00:58,182 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr12REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:00:58,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:58,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1770439165, now seen corresponding path program 1 times [2021-10-29 00:00:58,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:58,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667536550] [2021-10-29 00:00:58,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:58,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:58,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:00:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:58,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:58,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:58,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667536550] [2021-10-29 00:00:58,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667536550] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:58,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:58,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 00:00:58,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655721768] [2021-10-29 00:00:58,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:00:58,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:58,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:00:58,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:00:58,265 INFO L87 Difference]: Start difference. First operand 106 states and 110 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:58,528 INFO L93 Difference]: Finished difference Result 188 states and 192 transitions. [2021-10-29 00:00:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:00:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-10-29 00:00:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:58,531 INFO L225 Difference]: With dead ends: 188 [2021-10-29 00:00:58,531 INFO L226 Difference]: Without dead ends: 188 [2021-10-29 00:00:58,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:58,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-10-29 00:00:58,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 137. [2021-10-29 00:00:58,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 97 states have (on average 1.4948453608247423) internal successors, (145), 133 states have internal predecessors, (145), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 148 transitions. [2021-10-29 00:00:58,539 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 148 transitions. Word has length 12 [2021-10-29 00:00:58,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:58,540 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 148 transitions. [2021-10-29 00:00:58,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,540 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 148 transitions. [2021-10-29 00:00:58,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 00:00:58,541 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:58,541 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:58,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 00:00:58,541 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr8REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:00:58,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:58,542 INFO L85 PathProgramCache]: Analyzing trace with hash 493695586, now seen corresponding path program 1 times [2021-10-29 00:00:58,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:58,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646249555] [2021-10-29 00:00:58,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:58,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:58,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:00:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:58,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:58,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:58,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646249555] [2021-10-29 00:00:58,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646249555] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:58,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:58,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:58,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534280443] [2021-10-29 00:00:58,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:00:58,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:58,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:00:58,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:58,630 INFO L87 Difference]: Start difference. First operand 137 states and 148 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:58,928 INFO L93 Difference]: Finished difference Result 136 states and 147 transitions. [2021-10-29 00:00:58,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 00:00:58,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-10-29 00:00:58,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:58,935 INFO L225 Difference]: With dead ends: 136 [2021-10-29 00:00:58,935 INFO L226 Difference]: Without dead ends: 136 [2021-10-29 00:00:58,936 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-10-29 00:00:58,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-29 00:00:58,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2021-10-29 00:00:58,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 97 states have (on average 1.4845360824742269) internal successors, (144), 132 states have internal predecessors, (144), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 147 transitions. [2021-10-29 00:00:58,954 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 147 transitions. Word has length 16 [2021-10-29 00:00:58,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:58,954 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 147 transitions. [2021-10-29 00:00:58,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 147 transitions. [2021-10-29 00:00:58,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 00:00:58,955 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:58,956 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:58,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 00:00:58,956 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr9REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:00:58,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:58,957 INFO L85 PathProgramCache]: Analyzing trace with hash 493695587, now seen corresponding path program 1 times [2021-10-29 00:00:58,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:58,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287263780] [2021-10-29 00:00:58,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:58,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:59,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:00:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:59,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:59,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287263780] [2021-10-29 00:00:59,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287263780] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:59,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:59,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 00:00:59,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764808075] [2021-10-29 00:00:59,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:00:59,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:59,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:00:59,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:00:59,104 INFO L87 Difference]: Start difference. First operand 136 states and 147 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:59,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:59,478 INFO L93 Difference]: Finished difference Result 135 states and 146 transitions. [2021-10-29 00:00:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 00:00:59,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-10-29 00:00:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:59,482 INFO L225 Difference]: With dead ends: 135 [2021-10-29 00:00:59,482 INFO L226 Difference]: Without dead ends: 135 [2021-10-29 00:00:59,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-29 00:00:59,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-29 00:00:59,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 120. [2021-10-29 00:00:59,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 87 states have (on average 1.4597701149425288) internal successors, (127), 116 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:59,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 130 transitions. [2021-10-29 00:00:59,488 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 130 transitions. Word has length 16 [2021-10-29 00:00:59,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:59,489 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 130 transitions. [2021-10-29 00:00:59,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:59,489 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 130 transitions. [2021-10-29 00:00:59,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 00:00:59,490 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:59,490 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:59,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 00:00:59,490 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr17REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:00:59,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:59,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1591324516, now seen corresponding path program 1 times [2021-10-29 00:00:59,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:59,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309518829] [2021-10-29 00:00:59,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:59,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:59,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:00:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:59,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:59,580 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309518829] [2021-10-29 00:00:59,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309518829] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:59,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:59,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:00:59,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818662242] [2021-10-29 00:00:59,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:59,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:59,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:59,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:59,584 INFO L87 Difference]: Start difference. First operand 120 states and 130 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:59,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:59,768 INFO L93 Difference]: Finished difference Result 119 states and 129 transitions. [2021-10-29 00:00:59,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 00:00:59,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-29 00:00:59,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:59,770 INFO L225 Difference]: With dead ends: 119 [2021-10-29 00:00:59,770 INFO L226 Difference]: Without dead ends: 119 [2021-10-29 00:00:59,771 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:00:59,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-29 00:00:59,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-29 00:00:59,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 115 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:59,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2021-10-29 00:00:59,776 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 17 [2021-10-29 00:00:59,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:59,777 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2021-10-29 00:00:59,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:00:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2021-10-29 00:00:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 00:00:59,778 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:59,778 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:59,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 00:00:59,779 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr18REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:00:59,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:59,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1591324517, now seen corresponding path program 1 times [2021-10-29 00:00:59,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:00:59,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684437258] [2021-10-29 00:00:59,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:59,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:00:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:59,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:00:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:59,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:59,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:00:59,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684437258] [2021-10-29 00:00:59,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684437258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:59,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:59,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:00:59,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645017387] [2021-10-29 00:00:59,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:00:59,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:00:59,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:00:59,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:00:59,891 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:00,122 INFO L93 Difference]: Finished difference Result 118 states and 128 transitions. [2021-10-29 00:01:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 00:01:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-10-29 00:01:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:00,124 INFO L225 Difference]: With dead ends: 118 [2021-10-29 00:01:00,124 INFO L226 Difference]: Without dead ends: 118 [2021-10-29 00:01:00,124 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:00,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-29 00:01:00,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-29 00:01:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.4367816091954022) internal successors, (125), 114 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 128 transitions. [2021-10-29 00:01:00,129 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 128 transitions. Word has length 17 [2021-10-29 00:01:00,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:00,130 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 128 transitions. [2021-10-29 00:01:00,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 128 transitions. [2021-10-29 00:01:00,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 00:01:00,132 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:00,132 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:01:00,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 00:01:00,133 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr10ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:01:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1995056002, now seen corresponding path program 1 times [2021-10-29 00:01:00,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:01:00,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382339571] [2021-10-29 00:01:00,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:00,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:01:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:01:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:00,213 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:01:00,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382339571] [2021-10-29 00:01:00,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382339571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:00,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:00,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-29 00:01:00,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767264996] [2021-10-29 00:01:00,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:01:00,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:01:00,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:01:00,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:01:00,224 INFO L87 Difference]: Start difference. First operand 118 states and 128 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:00,487 INFO L93 Difference]: Finished difference Result 129 states and 140 transitions. [2021-10-29 00:01:00,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 00:01:00,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-10-29 00:01:00,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:00,489 INFO L225 Difference]: With dead ends: 129 [2021-10-29 00:01:00,489 INFO L226 Difference]: Without dead ends: 129 [2021-10-29 00:01:00,490 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-10-29 00:01:00,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-29 00:01:00,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 116. [2021-10-29 00:01:00,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 86 states have (on average 1.430232558139535) internal successors, (123), 112 states have internal predecessors, (123), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2021-10-29 00:01:00,495 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 18 [2021-10-29 00:01:00,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:00,495 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2021-10-29 00:01:00,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,496 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2021-10-29 00:01:00,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 00:01:00,496 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:00,497 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:01:00,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 00:01:00,497 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr19ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:01:00,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:00,498 INFO L85 PathProgramCache]: Analyzing trace with hash -700314201, now seen corresponding path program 1 times [2021-10-29 00:01:00,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:01:00,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289471795] [2021-10-29 00:01:00,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:00,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:01:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:00,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-10-29 00:01:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:01:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:00,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:01:00,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289471795] [2021-10-29 00:01:00,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289471795] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:00,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:00,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 00:01:00,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545208089] [2021-10-29 00:01:00,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 00:01:00,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:01:00,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 00:01:00,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 00:01:00,565 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:00,766 INFO L93 Difference]: Finished difference Result 172 states and 177 transitions. [2021-10-29 00:01:00,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:01:00,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-10-29 00:01:00,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:00,768 INFO L225 Difference]: With dead ends: 172 [2021-10-29 00:01:00,768 INFO L226 Difference]: Without dead ends: 172 [2021-10-29 00:01:00,768 INFO L786 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 [2021-10-29 00:01:00,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-10-29 00:01:00,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 114. [2021-10-29 00:01:00,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 85 states have (on average 1.423529411764706) internal successors, (121), 110 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2021-10-29 00:01:00,774 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 20 [2021-10-29 00:01:00,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:00,774 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2021-10-29 00:01:00,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-29 00:01:00,775 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2021-10-29 00:01:00,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 00:01:00,776 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:01:00,776 INFO L513 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] [2021-10-29 00:01:00,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 00:01:00,776 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr29ASSERT_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4REQUIRES_VIOLATION (and 49 more)] === [2021-10-29 00:01:00,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:01:00,777 INFO L85 PathProgramCache]: Analyzing trace with hash -202609001, now seen corresponding path program 1 times [2021-10-29 00:01:00,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:01:00,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779937160] [2021-10-29 00:01:00,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:01:00,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:01:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:01:00,805 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:01:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:01:00,857 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:01:00,857 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 00:01:00,858 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 00:01:00,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr0REQUIRES_VIOLATION [2021-10-29 00:01:00,860 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1REQUIRES_VIOLATION [2021-10-29 00:01:00,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2REQUIRES_VIOLATION [2021-10-29 00:01:00,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3REQUIRES_VIOLATION [2021-10-29 00:01:00,861 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4REQUIRES_VIOLATION [2021-10-29 00:01:00,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5REQUIRES_VIOLATION [2021-10-29 00:01:00,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6REQUIRES_VIOLATION [2021-10-29 00:01:00,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7REQUIRES_VIOLATION [2021-10-29 00:01:00,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr8REQUIRES_VIOLATION [2021-10-29 00:01:00,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr9REQUIRES_VIOLATION [2021-10-29 00:01:00,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 00:01:00,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr11REQUIRES_VIOLATION [2021-10-29 00:01:00,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr12REQUIRES_VIOLATION [2021-10-29 00:01:00,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr13REQUIRES_VIOLATION [2021-10-29 00:01:00,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr14REQUIRES_VIOLATION [2021-10-29 00:01:00,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr15REQUIRES_VIOLATION [2021-10-29 00:01:00,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr16REQUIRES_VIOLATION [2021-10-29 00:01:00,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr17REQUIRES_VIOLATION [2021-10-29 00:01:00,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr18REQUIRES_VIOLATION [2021-10-29 00:01:00,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 00:01:00,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr20REQUIRES_VIOLATION [2021-10-29 00:01:00,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr21REQUIRES_VIOLATION [2021-10-29 00:01:00,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr22REQUIRES_VIOLATION [2021-10-29 00:01:00,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr23REQUIRES_VIOLATION [2021-10-29 00:01:00,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 00:01:00,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr25REQUIRES_VIOLATION [2021-10-29 00:01:00,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr26REQUIRES_VIOLATION [2021-10-29 00:01:00,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr27REQUIRES_VIOLATION [2021-10-29 00:01:00,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr28REQUIRES_VIOLATION [2021-10-29 00:01:00,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr30REQUIRES_VIOLATION [2021-10-29 00:01:00,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr31REQUIRES_VIOLATION [2021-10-29 00:01:00,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr32REQUIRES_VIOLATION [2021-10-29 00:01:00,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr33REQUIRES_VIOLATION [2021-10-29 00:01:00,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 00:01:00,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr35REQUIRES_VIOLATION [2021-10-29 00:01:00,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr36REQUIRES_VIOLATION [2021-10-29 00:01:00,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr37REQUIRES_VIOLATION [2021-10-29 00:01:00,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr38REQUIRES_VIOLATION [2021-10-29 00:01:00,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr39ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr40ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr41ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr42REQUIRES_VIOLATION [2021-10-29 00:01:00,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr43REQUIRES_VIOLATION [2021-10-29 00:01:00,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 00:01:00,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr45REQUIRES_VIOLATION [2021-10-29 00:01:00,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr46REQUIRES_VIOLATION [2021-10-29 00:01:00,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr47ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr48ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr49ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr50ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr51ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr52ASSERT_VIOLATIONMEMORY_FREE [2021-10-29 00:01:00,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr53ENSURES_VIOLATIONMEMORY_LEAK [2021-10-29 00:01:00,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 00:01:00,875 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:01:00,879 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:01:00,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:01:00 BoogieIcfgContainer [2021-10-29 00:01:00,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:01:00,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:01:00,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:01:00,909 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:01:00,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:56" (3/4) ... [2021-10-29 00:01:00,911 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 00:01:00,981 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:01:00,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:01:00,983 INFO L168 Benchmark]: Toolchain (without parser) took 6225.26 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 96.5 MB in the beginning and 91.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,984 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:01:00,984 INFO L168 Benchmark]: CACSL2BoogieTranslator took 574.22 ms. Allocated memory is still 130.0 MB. Free memory was 96.2 MB in the beginning and 98.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,985 INFO L168 Benchmark]: Boogie Preprocessor took 75.22 ms. Allocated memory is still 130.0 MB. Free memory was 98.7 MB in the beginning and 95.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,985 INFO L168 Benchmark]: RCFGBuilder took 845.41 ms. Allocated memory is still 130.0 MB. Free memory was 95.7 MB in the beginning and 71.0 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,986 INFO L168 Benchmark]: TraceAbstraction took 4641.20 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 70.7 MB in the beginning and 93.4 MB in the end (delta: -22.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,986 INFO L168 Benchmark]: Witness Printer took 72.76 ms. Allocated memory is still 157.3 MB. Free memory was 93.4 MB in the beginning and 91.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:00,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 574.22 ms. Allocated memory is still 130.0 MB. Free memory was 96.2 MB in the beginning and 98.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.22 ms. Allocated memory is still 130.0 MB. Free memory was 98.7 MB in the beginning and 95.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 845.41 ms. Allocated memory is still 130.0 MB. Free memory was 95.7 MB in the beginning and 71.0 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4641.20 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 70.7 MB in the beginning and 93.4 MB in the end (delta: -22.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 72.76 ms. Allocated memory is still 157.3 MB. Free memory was 93.4 MB in the beginning and 91.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1031]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) VAL [head={-1:0}] [L1005] head->data = 0 VAL [head={-1:0}] [L1007] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 VAL [head={-1:0}, x={-1:0}] [L1019] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1020] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1020] x->next->data = 2 VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1022] x = head VAL [head={-1:0}, x={-1:0}] [L1024] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, x={-1:0}] [L1026] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1031] COND TRUE !(2 == x->data) [L1031] reach_error() VAL [head={-1:0}, x={-1:0}] - UnprovableResult [Line: 1004]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1004]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1005]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1014]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1014]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1015]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1015]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1018]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1018]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1019]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1019]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1020]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1020]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1020]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1020]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1026]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1026]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1028]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1028]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1028]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1031]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1032]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1040]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1040]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1043]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1043]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1043]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1000]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 127 locations, 54 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 772 SDtfs, 822 SDslu, 1248 SDs, 0 SdLazy, 2292 SolverSat, 99 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=4, InterpolantAutomatonStates: 74, 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, 10 MinimizatonAttempts, 202 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2021-10-29 00:01:01,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a1c18a-e695-40a4-af65-b17a616afc80/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...