./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF --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 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:37:24,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:37:24,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:37:24,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:37:24,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:37:24,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:37:24,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:37:24,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:37:24,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:37:24,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:37:24,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:37:24,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:37:24,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:37:24,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:37:24,366 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:37:24,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:37:24,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:37:24,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:37:24,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:37:24,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:37:24,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:37:24,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:37:24,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:37:24,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:37:24,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:37:24,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:37:24,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:37:24,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:37:24,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:37:24,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:37:24,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:37:24,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:37:24,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:37:24,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:37:24,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:37:24,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:37:24,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:37:24,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:37:24,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:37:24,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:37:24,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:37:24,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2021-11-20 06:37:24,494 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:37:24,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:37:24,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:37:24,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:37:24,506 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:37:24,506 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:37:24,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:37:24,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:37:24,508 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:37:24,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:37:24,510 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:37:24,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:37:24,511 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:37:24,511 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:37:24,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:37:24,512 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-20 06:37:24,512 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-20 06:37:24,512 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:37:24,512 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:37:24,513 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:37:24,513 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:37:24,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:37:24,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:37:24,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:37:24,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:37:24,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:37:24,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:37:24,515 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:37:24,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:37:24,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:37:24,518 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 820401b0140b0bfb9dffe62418c7fb9ec2170c8bc6edd71581a88d2ffbcfa1c6 [2021-11-20 06:37:24,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:37:24,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:37:24,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:37:24,932 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:37:24,933 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:37:24,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/forester-heap/dll-token-2.i [2021-11-20 06:37:25,026 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/data/197cce49d/76dbf627f9be49ef9742ebe75f31915d/FLAGb52506990 [2021-11-20 06:37:25,705 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:37:25,706 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i [2021-11-20 06:37:25,726 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/data/197cce49d/76dbf627f9be49ef9742ebe75f31915d/FLAGb52506990 [2021-11-20 06:37:25,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/data/197cce49d/76dbf627f9be49ef9742ebe75f31915d [2021-11-20 06:37:25,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:37:25,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:37:25,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:37:25,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:37:25,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:37:25,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:37:25" (1/1) ... [2021-11-20 06:37:25,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e5f242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:25, skipping insertion in model container [2021-11-20 06:37:25,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:37:25" (1/1) ... [2021-11-20 06:37:25,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:37:26,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:37:26,425 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22229,22242] [2021-11-20 06:37:26,432 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22398,22411] [2021-11-20 06:37:26,434 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22489,22502] [2021-11-20 06:37:26,436 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22571,22584] [2021-11-20 06:37:26,438 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22649,22662] [2021-11-20 06:37:26,441 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22795,22808] [2021-11-20 06:37:26,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:37:26,455 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:37:26,499 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22229,22242] [2021-11-20 06:37:26,501 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22398,22411] [2021-11-20 06:37:26,503 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22489,22502] [2021-11-20 06:37:26,505 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22571,22584] [2021-11-20 06:37:26,506 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22649,22662] [2021-11-20 06:37:26,509 WARN L230 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_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/sv-benchmarks/c/forester-heap/dll-token-2.i[22795,22808] [2021-11-20 06:37:26,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:37:26,551 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:37:26,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26 WrapperNode [2021-11-20 06:37:26,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:37:26,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:37:26,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:37:26,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:37:26,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,612 INFO L137 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2021-11-20 06:37:26,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:37:26,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:37:26,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:37:26,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:37:26,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:37:26,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:37:26,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:37:26,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:37:26,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (1/1) ... [2021-11-20 06:37:26,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:37:26,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:37:26,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:37:26,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:37:26,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:37:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:37:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:37:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:37:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:37:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:37:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:37:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:37:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:37:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:37:26,881 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:37:26,882 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:37:27,446 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:37:27,455 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:37:27,455 INFO L301 CfgBuilder]: Removed 15 assume(true) statements. [2021-11-20 06:37:27,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:37:27 BoogieIcfgContainer [2021-11-20 06:37:27,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:37:27,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:37:27,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:37:27,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:37:27,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:37:25" (1/3) ... [2021-11-20 06:37:27,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce91d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:37:27, skipping insertion in model container [2021-11-20 06:37:27,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:37:26" (2/3) ... [2021-11-20 06:37:27,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce91d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:37:27, skipping insertion in model container [2021-11-20 06:37:27,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:37:27" (3/3) ... [2021-11-20 06:37:27,495 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2021-11-20 06:37:27,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:37:27,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-11-20 06:37:27,564 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:37:27,574 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 [2021-11-20 06:37:27,574 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-11-20 06:37:27,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 71 states have (on average 2.23943661971831) internal successors, (159), 135 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:27,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 06:37:27,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:27,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 06:37:27,610 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:27,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:27,618 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-20 06:37:27,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:27,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635080800] [2021-11-20 06:37:27,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:27,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:27,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:27,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635080800] [2021-11-20 06:37:27,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635080800] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:27,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:27,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:37:27,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336985832] [2021-11-20 06:37:27,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:27,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:37:27,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:27,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:37:27,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:37:27,879 INFO L87 Difference]: Start difference. First operand has 136 states, 71 states have (on average 2.23943661971831) internal successors, (159), 135 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:28,058 INFO L93 Difference]: Finished difference Result 153 states and 156 transitions. [2021-11-20 06:37:28,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:37:28,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-20 06:37:28,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:28,073 INFO L225 Difference]: With dead ends: 153 [2021-11-20 06:37:28,074 INFO L226 Difference]: Without dead ends: 151 [2021-11-20 06:37:28,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:37:28,081 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 110 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:28,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 103 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:37:28,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-20 06:37:28,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 131. [2021-11-20 06:37:28,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 70 states have (on average 1.9) internal successors, (133), 130 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 133 transitions. [2021-11-20 06:37:28,142 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 133 transitions. Word has length 3 [2021-11-20 06:37:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:28,143 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 133 transitions. [2021-11-20 06:37:28,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,143 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 133 transitions. [2021-11-20 06:37:28,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-20 06:37:28,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:28,144 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-20 06:37:28,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:37:28,145 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:28,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:28,147 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-20 06:37:28,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:28,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971279426] [2021-11-20 06:37:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:28,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:28,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:28,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:28,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971279426] [2021-11-20 06:37:28,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971279426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:28,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:28,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:37:28,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649889816] [2021-11-20 06:37:28,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:28,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:37:28,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:28,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:37:28,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:37:28,214 INFO L87 Difference]: Start difference. First operand 131 states and 133 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:28,341 INFO L93 Difference]: Finished difference Result 156 states and 158 transitions. [2021-11-20 06:37:28,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:37:28,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-20 06:37:28,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:28,345 INFO L225 Difference]: With dead ends: 156 [2021-11-20 06:37:28,345 INFO L226 Difference]: Without dead ends: 156 [2021-11-20 06:37:28,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:37:28,347 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 115 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:28,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 105 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:37:28,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-20 06:37:28,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 128. [2021-11-20 06:37:28,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 70 states have (on average 1.8571428571428572) internal successors, (130), 127 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 130 transitions. [2021-11-20 06:37:28,363 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 130 transitions. Word has length 3 [2021-11-20 06:37:28,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:28,364 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 130 transitions. [2021-11-20 06:37:28,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,364 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 130 transitions. [2021-11-20 06:37:28,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 06:37:28,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:28,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:28,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:37:28,366 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:28,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:28,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1837112020, now seen corresponding path program 1 times [2021-11-20 06:37:28,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:28,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651583743] [2021-11-20 06:37:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:28,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:28,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:28,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651583743] [2021-11-20 06:37:28,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651583743] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:28,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:28,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:37:28,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633691729] [2021-11-20 06:37:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:28,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:37:28,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:28,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:37:28,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:37:28,480 INFO L87 Difference]: Start difference. First operand 128 states and 130 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:28,849 INFO L93 Difference]: Finished difference Result 241 states and 245 transitions. [2021-11-20 06:37:28,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:37:28,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-20 06:37:28,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:28,853 INFO L225 Difference]: With dead ends: 241 [2021-11-20 06:37:28,853 INFO L226 Difference]: Without dead ends: 241 [2021-11-20 06:37:28,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:28,856 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 271 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:28,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [271 Valid, 113 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:37:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-11-20 06:37:28,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 167. [2021-11-20 06:37:28,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 109 states have (on average 1.81651376146789) internal successors, (198), 166 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 198 transitions. [2021-11-20 06:37:28,874 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 198 transitions. Word has length 9 [2021-11-20 06:37:28,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:28,875 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 198 transitions. [2021-11-20 06:37:28,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 198 transitions. [2021-11-20 06:37:28,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-20 06:37:28,877 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:28,877 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:28,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:37:28,877 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:28,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1837112019, now seen corresponding path program 1 times [2021-11-20 06:37:28,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:28,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295926613] [2021-11-20 06:37:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:28,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:28,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:28,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:28,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295926613] [2021-11-20 06:37:28,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295926613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:28,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:28,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:37:28,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942496905] [2021-11-20 06:37:28,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:28,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:37:28,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:28,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:37:28,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:37:28,965 INFO L87 Difference]: Start difference. First operand 167 states and 198 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:29,167 INFO L93 Difference]: Finished difference Result 157 states and 168 transitions. [2021-11-20 06:37:29,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:37:29,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-20 06:37:29,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:29,171 INFO L225 Difference]: With dead ends: 157 [2021-11-20 06:37:29,172 INFO L226 Difference]: Without dead ends: 157 [2021-11-20 06:37:29,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:29,184 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 181 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:29,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 74 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:37:29,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-11-20 06:37:29,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 152. [2021-11-20 06:37:29,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 109 states have (on average 1.5321100917431192) internal successors, (167), 151 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 167 transitions. [2021-11-20 06:37:29,212 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 167 transitions. Word has length 9 [2021-11-20 06:37:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:29,215 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 167 transitions. [2021-11-20 06:37:29,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 167 transitions. [2021-11-20 06:37:29,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 06:37:29,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:29,216 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:29,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:37:29,217 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:29,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1363413642, now seen corresponding path program 1 times [2021-11-20 06:37:29,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:29,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36158503] [2021-11-20 06:37:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:29,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:29,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:29,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:29,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36158503] [2021-11-20 06:37:29,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36158503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:29,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:29,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:37:29,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855275178] [2021-11-20 06:37:29,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:29,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:37:29,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:29,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:37:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:29,384 INFO L87 Difference]: Start difference. First operand 152 states and 167 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:29,608 INFO L93 Difference]: Finished difference Result 151 states and 165 transitions. [2021-11-20 06:37:29,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:37:29,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 06:37:29,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:29,611 INFO L225 Difference]: With dead ends: 151 [2021-11-20 06:37:29,611 INFO L226 Difference]: Without dead ends: 151 [2021-11-20 06:37:29,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:37:29,612 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 6 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:29,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 278 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:37:29,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-11-20 06:37:29,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2021-11-20 06:37:29,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 150 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 165 transitions. [2021-11-20 06:37:29,623 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 165 transitions. Word has length 12 [2021-11-20 06:37:29,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:29,624 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 165 transitions. [2021-11-20 06:37:29,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,624 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 165 transitions. [2021-11-20 06:37:29,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 06:37:29,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:29,625 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:29,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:37:29,626 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:29,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:29,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1363413643, now seen corresponding path program 1 times [2021-11-20 06:37:29,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:29,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560961726] [2021-11-20 06:37:29,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:29,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:29,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:29,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560961726] [2021-11-20 06:37:29,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560961726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:29,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:29,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:37:29,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637468223] [2021-11-20 06:37:29,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:29,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:37:29,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:29,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:37:29,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:29,717 INFO L87 Difference]: Start difference. First operand 151 states and 165 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:29,919 INFO L93 Difference]: Finished difference Result 150 states and 163 transitions. [2021-11-20 06:37:29,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:37:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 06:37:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:29,921 INFO L225 Difference]: With dead ends: 150 [2021-11-20 06:37:29,921 INFO L226 Difference]: Without dead ends: 150 [2021-11-20 06:37:29,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:37:29,922 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 7 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:29,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 283 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:37:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-20 06:37:29,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2021-11-20 06:37:29,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 109 states have (on average 1.4954128440366972) internal successors, (163), 149 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 163 transitions. [2021-11-20 06:37:29,932 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 163 transitions. Word has length 12 [2021-11-20 06:37:29,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:29,932 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 163 transitions. [2021-11-20 06:37:29,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:29,933 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2021-11-20 06:37:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 06:37:29,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:29,934 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:29,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:37:29,934 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:29,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:29,935 INFO L85 PathProgramCache]: Analyzing trace with hash -896738186, now seen corresponding path program 1 times [2021-11-20 06:37:29,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:29,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87039006] [2021-11-20 06:37:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:29,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:30,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:30,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:30,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87039006] [2021-11-20 06:37:30,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87039006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:30,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:30,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:37:30,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851839936] [2021-11-20 06:37:30,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:30,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:37:30,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:30,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:37:30,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:30,014 INFO L87 Difference]: Start difference. First operand 150 states and 163 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:30,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:30,194 INFO L93 Difference]: Finished difference Result 149 states and 161 transitions. [2021-11-20 06:37:30,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:37:30,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-20 06:37:30,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:30,197 INFO L225 Difference]: With dead ends: 149 [2021-11-20 06:37:30,197 INFO L226 Difference]: Without dead ends: 149 [2021-11-20 06:37:30,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:37:30,198 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 11 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:30,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 275 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:37:30,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-20 06:37:30,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-11-20 06:37:30,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 109 states have (on average 1.4770642201834863) internal successors, (161), 148 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:30,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 161 transitions. [2021-11-20 06:37:30,205 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 161 transitions. Word has length 14 [2021-11-20 06:37:30,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:30,206 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 161 transitions. [2021-11-20 06:37:30,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:30,206 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 161 transitions. [2021-11-20 06:37:30,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-20 06:37:30,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:30,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:30,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:37:30,208 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:30,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:30,209 INFO L85 PathProgramCache]: Analyzing trace with hash -896738185, now seen corresponding path program 1 times [2021-11-20 06:37:30,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:30,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290937225] [2021-11-20 06:37:30,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:30,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:30,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:30,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:30,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290937225] [2021-11-20 06:37:30,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290937225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:30,302 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:30,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:37:30,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85440667] [2021-11-20 06:37:30,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:30,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:37:30,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:30,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:37:30,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:30,305 INFO L87 Difference]: Start difference. First operand 149 states and 161 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:30,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:30,510 INFO L93 Difference]: Finished difference Result 148 states and 159 transitions. [2021-11-20 06:37:30,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:37:30,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-20 06:37:30,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:30,513 INFO L225 Difference]: With dead ends: 148 [2021-11-20 06:37:30,513 INFO L226 Difference]: Without dead ends: 148 [2021-11-20 06:37:30,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:37:30,514 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 4 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:30,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 273 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:37:30,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-20 06:37:30,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-20 06:37:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 109 states have (on average 1.4587155963302751) internal successors, (159), 147 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 159 transitions. [2021-11-20 06:37:30,520 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 159 transitions. Word has length 14 [2021-11-20 06:37:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:30,521 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 159 transitions. [2021-11-20 06:37:30,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:30,521 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 159 transitions. [2021-11-20 06:37:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 06:37:30,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:30,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:30,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:37:30,522 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:30,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:30,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1546362871, now seen corresponding path program 1 times [2021-11-20 06:37:30,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:30,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418938433] [2021-11-20 06:37:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:30,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:30,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:30,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418938433] [2021-11-20 06:37:30,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418938433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:30,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:30,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:37:30,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506708049] [2021-11-20 06:37:30,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:30,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:37:30,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:30,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:37:30,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:37:30,692 INFO L87 Difference]: Start difference. First operand 148 states and 159 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:31,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:31,074 INFO L93 Difference]: Finished difference Result 152 states and 159 transitions. [2021-11-20 06:37:31,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:37:31,075 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-20 06:37:31,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:31,076 INFO L225 Difference]: With dead ends: 152 [2021-11-20 06:37:31,076 INFO L226 Difference]: Without dead ends: 152 [2021-11-20 06:37:31,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:37:31,078 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 184 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:31,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 188 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:37:31,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-11-20 06:37:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 147. [2021-11-20 06:37:31,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 146 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:31,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2021-11-20 06:37:31,084 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 16 [2021-11-20 06:37:31,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:31,084 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2021-11-20 06:37:31,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 9 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2021-11-20 06:37:31,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-20 06:37:31,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:31,085 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:31,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:37:31,086 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:31,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:31,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1546362872, now seen corresponding path program 1 times [2021-11-20 06:37:31,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:31,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294043468] [2021-11-20 06:37:31,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:31,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:31,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:31,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:31,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294043468] [2021-11-20 06:37:31,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294043468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:31,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:31,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:37:31,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090854697] [2021-11-20 06:37:31,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:31,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:37:31,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:31,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:37:31,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:37:31,348 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:32,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:32,014 INFO L93 Difference]: Finished difference Result 149 states and 156 transitions. [2021-11-20 06:37:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 06:37:32,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-20 06:37:32,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:32,016 INFO L225 Difference]: With dead ends: 149 [2021-11-20 06:37:32,016 INFO L226 Difference]: Without dead ends: 149 [2021-11-20 06:37:32,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-11-20 06:37:32,018 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 182 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:32,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 282 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:37:32,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-20 06:37:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 123. [2021-11-20 06:37:32,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 122 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:32,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 133 transitions. [2021-11-20 06:37:32,023 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 133 transitions. Word has length 16 [2021-11-20 06:37:32,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:32,023 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 133 transitions. [2021-11-20 06:37:32,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:32,024 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 133 transitions. [2021-11-20 06:37:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-20 06:37:32,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:32,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:32,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 06:37:32,025 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:32,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:32,026 INFO L85 PathProgramCache]: Analyzing trace with hash -30672293, now seen corresponding path program 1 times [2021-11-20 06:37:32,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:32,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391005814] [2021-11-20 06:37:32,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:32,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:32,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:32,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391005814] [2021-11-20 06:37:32,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391005814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:32,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:32,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:37:32,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603628057] [2021-11-20 06:37:32,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:32,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:37:32,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:32,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:37:32,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:37:32,129 INFO L87 Difference]: Start difference. First operand 123 states and 133 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:32,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:32,464 INFO L93 Difference]: Finished difference Result 126 states and 137 transitions. [2021-11-20 06:37:32,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:37:32,465 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-20 06:37:32,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:32,466 INFO L225 Difference]: With dead ends: 126 [2021-11-20 06:37:32,467 INFO L226 Difference]: Without dead ends: 126 [2021-11-20 06:37:32,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:37:32,468 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 63 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:32,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 253 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:37:32,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-20 06:37:32,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2021-11-20 06:37:32,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 93 states have (on average 1.4193548387096775) internal successors, (132), 121 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:32,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-11-20 06:37:32,474 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 17 [2021-11-20 06:37:32,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:32,475 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-11-20 06:37:32,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:32,476 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2021-11-20 06:37:32,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-20 06:37:32,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:32,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:32,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:37:32,478 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:32,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:32,479 INFO L85 PathProgramCache]: Analyzing trace with hash -30672292, now seen corresponding path program 1 times [2021-11-20 06:37:32,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:32,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104605009] [2021-11-20 06:37:32,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:32,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:32,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:32,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104605009] [2021-11-20 06:37:32,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104605009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:32,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:32,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:37:32,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443194866] [2021-11-20 06:37:32,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:32,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:37:32,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:32,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:37:32,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:37:32,645 INFO L87 Difference]: Start difference. First operand 122 states and 132 transitions. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:33,026 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2021-11-20 06:37:33,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:37:33,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-20 06:37:33,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:33,028 INFO L225 Difference]: With dead ends: 125 [2021-11-20 06:37:33,029 INFO L226 Difference]: Without dead ends: 125 [2021-11-20 06:37:33,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:37:33,030 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 62 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:33,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 263 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:37:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-20 06:37:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 121. [2021-11-20 06:37:33,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 93 states have (on average 1.4086021505376345) internal successors, (131), 120 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2021-11-20 06:37:33,035 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 17 [2021-11-20 06:37:33,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:33,035 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2021-11-20 06:37:33,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,035 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2021-11-20 06:37:33,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-20 06:37:33,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:33,036 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:33,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 06:37:33,038 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:33,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:33,038 INFO L85 PathProgramCache]: Analyzing trace with hash -3964873, now seen corresponding path program 1 times [2021-11-20 06:37:33,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:33,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993917447] [2021-11-20 06:37:33,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:33,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:33,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:33,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993917447] [2021-11-20 06:37:33,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993917447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:33,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:33,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:37:33,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611252913] [2021-11-20 06:37:33,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:33,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:37:33,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:33,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:37:33,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:37:33,110 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:33,262 INFO L93 Difference]: Finished difference Result 123 states and 134 transitions. [2021-11-20 06:37:33,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:37:33,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-20 06:37:33,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:33,264 INFO L225 Difference]: With dead ends: 123 [2021-11-20 06:37:33,264 INFO L226 Difference]: Without dead ends: 123 [2021-11-20 06:37:33,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:37:33,265 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 153 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:33,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 113 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:37:33,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-20 06:37:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2021-11-20 06:37:33,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 92 states have (on average 1.4021739130434783) internal successors, (129), 118 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2021-11-20 06:37:33,270 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 18 [2021-11-20 06:37:33,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:33,273 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2021-11-20 06:37:33,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,274 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2021-11-20 06:37:33,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 06:37:33,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:33,278 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:33,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:37:33,279 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:33,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:33,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1069806106, now seen corresponding path program 1 times [2021-11-20 06:37:33,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:33,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084150867] [2021-11-20 06:37:33,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:33,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:33,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:33,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:33,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:33,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084150867] [2021-11-20 06:37:33,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084150867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:33,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:33,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:37:33,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328520770] [2021-11-20 06:37:33,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:33,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:37:33,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:33,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:37:33,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:37:33,347 INFO L87 Difference]: Start difference. First operand 119 states and 129 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:33,484 INFO L93 Difference]: Finished difference Result 181 states and 186 transitions. [2021-11-20 06:37:33,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:37:33,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 06:37:33,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:33,487 INFO L225 Difference]: With dead ends: 181 [2021-11-20 06:37:33,487 INFO L226 Difference]: Without dead ends: 181 [2021-11-20 06:37:33,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:33,488 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 177 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:33,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 135 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:37:33,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-20 06:37:33,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 117. [2021-11-20 06:37:33,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 91 states have (on average 1.3956043956043955) internal successors, (127), 116 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 127 transitions. [2021-11-20 06:37:33,493 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 127 transitions. Word has length 20 [2021-11-20 06:37:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:33,494 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 127 transitions. [2021-11-20 06:37:33,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 127 transitions. [2021-11-20 06:37:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 06:37:33,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:33,501 INFO L514 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] [2021-11-20 06:37:33,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 06:37:33,502 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:33,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:33,503 INFO L85 PathProgramCache]: Analyzing trace with hash 684226449, now seen corresponding path program 1 times [2021-11-20 06:37:33,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:33,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596606612] [2021-11-20 06:37:33,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:33,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:33,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:33,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596606612] [2021-11-20 06:37:33,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596606612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:33,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:33,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:37:33,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745530507] [2021-11-20 06:37:33,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:33,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:37:33,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:33,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:37:33,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:37:33,933 INFO L87 Difference]: Start difference. First operand 117 states and 127 transitions. Second operand has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:34,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:34,556 INFO L93 Difference]: Finished difference Result 225 states and 229 transitions. [2021-11-20 06:37:34,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 06:37:34,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-20 06:37:34,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:34,559 INFO L225 Difference]: With dead ends: 225 [2021-11-20 06:37:34,559 INFO L226 Difference]: Without dead ends: 225 [2021-11-20 06:37:34,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=257, Unknown=0, NotChecked=0, Total=380 [2021-11-20 06:37:34,561 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 417 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:34,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [417 Valid, 313 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:37:34,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-20 06:37:34,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 133. [2021-11-20 06:37:34,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 107 states have (on average 1.3457943925233644) internal successors, (144), 132 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:34,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 144 transitions. [2021-11-20 06:37:34,574 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 144 transitions. Word has length 25 [2021-11-20 06:37:34,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:34,575 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 144 transitions. [2021-11-20 06:37:34,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:34,575 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 144 transitions. [2021-11-20 06:37:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 06:37:34,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:34,578 INFO L514 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] [2021-11-20 06:37:34,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 06:37:34,579 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:34,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:34,579 INFO L85 PathProgramCache]: Analyzing trace with hash 684193678, now seen corresponding path program 1 times [2021-11-20 06:37:34,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:34,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390420423] [2021-11-20 06:37:34,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:34,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:34,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:34,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390420423] [2021-11-20 06:37:34,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390420423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:34,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:34,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:37:34,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628191912] [2021-11-20 06:37:34,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:34,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:37:34,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:34,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:37:34,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:37:34,646 INFO L87 Difference]: Start difference. First operand 133 states and 144 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:34,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:34,790 INFO L93 Difference]: Finished difference Result 131 states and 141 transitions. [2021-11-20 06:37:34,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:37:34,790 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-20 06:37:34,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:34,791 INFO L225 Difference]: With dead ends: 131 [2021-11-20 06:37:34,792 INFO L226 Difference]: Without dead ends: 131 [2021-11-20 06:37:34,792 INFO L932 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 [2021-11-20 06:37:34,793 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 8 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:34,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 236 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:37:34,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-20 06:37:34,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-20 06:37:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 106 states have (on average 1.330188679245283) internal successors, (141), 130 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:34,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 141 transitions. [2021-11-20 06:37:34,798 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 141 transitions. Word has length 25 [2021-11-20 06:37:34,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:34,800 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 141 transitions. [2021-11-20 06:37:34,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 141 transitions. [2021-11-20 06:37:34,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 06:37:34,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:34,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:34,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 06:37:34,807 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:34,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:34,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1096862923, now seen corresponding path program 1 times [2021-11-20 06:37:34,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:34,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123226349] [2021-11-20 06:37:34,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:34,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:35,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:35,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123226349] [2021-11-20 06:37:35,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123226349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:35,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:35,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 06:37:35,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297112292] [2021-11-20 06:37:35,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:35,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:37:35,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:35,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:37:35,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:37:35,079 INFO L87 Difference]: Start difference. First operand 131 states and 141 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:35,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:35,709 INFO L93 Difference]: Finished difference Result 185 states and 190 transitions. [2021-11-20 06:37:35,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 06:37:35,711 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 06:37:35,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:35,712 INFO L225 Difference]: With dead ends: 185 [2021-11-20 06:37:35,712 INFO L226 Difference]: Without dead ends: 185 [2021-11-20 06:37:35,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2021-11-20 06:37:35,714 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 188 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:35,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 329 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:37:35,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-20 06:37:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 137. [2021-11-20 06:37:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.3214285714285714) internal successors, (148), 136 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:35,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 148 transitions. [2021-11-20 06:37:35,719 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 148 transitions. Word has length 28 [2021-11-20 06:37:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:35,720 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 148 transitions. [2021-11-20 06:37:35,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 148 transitions. [2021-11-20 06:37:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 06:37:35,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:35,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:35,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 06:37:35,722 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1096862922, now seen corresponding path program 1 times [2021-11-20 06:37:35,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:35,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511106906] [2021-11-20 06:37:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:35,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:35,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:37:36,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:37:36,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:37:36,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511106906] [2021-11-20 06:37:36,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511106906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:37:36,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:37:36,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-20 06:37:36,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709685179] [2021-11-20 06:37:36,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:37:36,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:37:36,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:37:36,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:37:36,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:37:36,102 INFO L87 Difference]: Start difference. First operand 137 states and 148 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:36,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:37:36,776 INFO L93 Difference]: Finished difference Result 217 states and 221 transitions. [2021-11-20 06:37:36,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 06:37:36,777 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 06:37:36,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:37:36,778 INFO L225 Difference]: With dead ends: 217 [2021-11-20 06:37:36,779 INFO L226 Difference]: Without dead ends: 217 [2021-11-20 06:37:36,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2021-11-20 06:37:36,780 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 170 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:37:36,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 337 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:37:36,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-20 06:37:36,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 137. [2021-11-20 06:37:36,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.3125) internal successors, (147), 136 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 147 transitions. [2021-11-20 06:37:36,786 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 147 transitions. Word has length 28 [2021-11-20 06:37:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:37:36,786 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 147 transitions. [2021-11-20 06:37:36,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:37:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 147 transitions. [2021-11-20 06:37:36,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 06:37:36,787 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:37:36,788 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:36,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 06:37:36,788 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 60 more)] === [2021-11-20 06:37:36,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:37:36,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1818276907, now seen corresponding path program 1 times [2021-11-20 06:37:36,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:37:36,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600392189] [2021-11-20 06:37:36,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:37:36,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:37:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:37:36,812 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:37:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:37:36,865 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:37:36,871 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:37:36,874 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK (63 of 64 remaining) [2021-11-20 06:37:36,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (62 of 64 remaining) [2021-11-20 06:37:36,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (61 of 64 remaining) [2021-11-20 06:37:36,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (60 of 64 remaining) [2021-11-20 06:37:36,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (59 of 64 remaining) [2021-11-20 06:37:36,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (58 of 64 remaining) [2021-11-20 06:37:36,877 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (57 of 64 remaining) [2021-11-20 06:37:36,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (56 of 64 remaining) [2021-11-20 06:37:36,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (55 of 64 remaining) [2021-11-20 06:37:36,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (54 of 64 remaining) [2021-11-20 06:37:36,878 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (53 of 64 remaining) [2021-11-20 06:37:36,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (52 of 64 remaining) [2021-11-20 06:37:36,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (51 of 64 remaining) [2021-11-20 06:37:36,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (50 of 64 remaining) [2021-11-20 06:37:36,879 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (49 of 64 remaining) [2021-11-20 06:37:36,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (48 of 64 remaining) [2021-11-20 06:37:36,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (47 of 64 remaining) [2021-11-20 06:37:36,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (46 of 64 remaining) [2021-11-20 06:37:36,880 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (45 of 64 remaining) [2021-11-20 06:37:36,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (44 of 64 remaining) [2021-11-20 06:37:36,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (43 of 64 remaining) [2021-11-20 06:37:36,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (42 of 64 remaining) [2021-11-20 06:37:36,881 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (41 of 64 remaining) [2021-11-20 06:37:36,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (40 of 64 remaining) [2021-11-20 06:37:36,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (39 of 64 remaining) [2021-11-20 06:37:36,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION (38 of 64 remaining) [2021-11-20 06:37:36,882 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION (37 of 64 remaining) [2021-11-20 06:37:36,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATION (36 of 64 remaining) [2021-11-20 06:37:36,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATION (35 of 64 remaining) [2021-11-20 06:37:36,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATION (34 of 64 remaining) [2021-11-20 06:37:36,883 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK (33 of 64 remaining) [2021-11-20 06:37:36,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION (32 of 64 remaining) [2021-11-20 06:37:36,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATION (31 of 64 remaining) [2021-11-20 06:37:36,884 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATION (30 of 64 remaining) [2021-11-20 06:37:36,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATION (29 of 64 remaining) [2021-11-20 06:37:36,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (28 of 64 remaining) [2021-11-20 06:37:36,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION (27 of 64 remaining) [2021-11-20 06:37:36,885 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATION (26 of 64 remaining) [2021-11-20 06:37:36,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATION (25 of 64 remaining) [2021-11-20 06:37:36,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATION (24 of 64 remaining) [2021-11-20 06:37:36,886 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK (23 of 64 remaining) [2021-11-20 06:37:36,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION (22 of 64 remaining) [2021-11-20 06:37:36,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION (21 of 64 remaining) [2021-11-20 06:37:36,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION (20 of 64 remaining) [2021-11-20 06:37:36,887 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATION (19 of 64 remaining) [2021-11-20 06:37:36,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATION (18 of 64 remaining) [2021-11-20 06:37:36,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATION (17 of 64 remaining) [2021-11-20 06:37:36,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47REQUIRES_VIOLATION (16 of 64 remaining) [2021-11-20 06:37:36,888 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48REQUIRES_VIOLATION (15 of 64 remaining) [2021-11-20 06:37:36,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE (14 of 64 remaining) [2021-11-20 06:37:36,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE (13 of 64 remaining) [2021-11-20 06:37:36,889 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE (12 of 64 remaining) [2021-11-20 06:37:36,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52REQUIRES_VIOLATION (11 of 64 remaining) [2021-11-20 06:37:36,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53REQUIRES_VIOLATION (10 of 64 remaining) [2021-11-20 06:37:36,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK (9 of 64 remaining) [2021-11-20 06:37:36,890 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr55REQUIRES_VIOLATION (8 of 64 remaining) [2021-11-20 06:37:36,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr56REQUIRES_VIOLATION (7 of 64 remaining) [2021-11-20 06:37:36,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE (6 of 64 remaining) [2021-11-20 06:37:36,891 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE (5 of 64 remaining) [2021-11-20 06:37:36,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE (4 of 64 remaining) [2021-11-20 06:37:36,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE (3 of 64 remaining) [2021-11-20 06:37:36,892 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE (2 of 64 remaining) [2021-11-20 06:37:36,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE (1 of 64 remaining) [2021-11-20 06:37:36,893 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK (0 of 64 remaining) [2021-11-20 06:37:36,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 06:37:36,897 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:37:36,903 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:37:36,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:37:36 BoogieIcfgContainer [2021-11-20 06:37:36,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:37:36,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:37:36,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:37:36,975 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:37:36,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:37:27" (3/4) ... [2021-11-20 06:37:36,978 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 06:37:37,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:37:37,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:37:37,054 INFO L158 Benchmark]: Toolchain (without parser) took 11117.35ms. Allocated memory was 94.4MB in the beginning and 144.7MB in the end (delta: 50.3MB). Free memory was 56.0MB in the beginning and 74.5MB in the end (delta: -18.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-20 06:37:37,055 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:37:37,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 600.91ms. Allocated memory is still 94.4MB. Free memory was 55.8MB in the beginning and 62.6MB in the end (delta: -6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:37:37,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.97ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 60.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:37:37,056 INFO L158 Benchmark]: Boogie Preprocessor took 43.26ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:37:37,056 INFO L158 Benchmark]: RCFGBuilder took 821.90ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 58.5MB in the beginning and 95.2MB in the end (delta: -36.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2021-11-20 06:37:37,058 INFO L158 Benchmark]: TraceAbstraction took 9491.54ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 94.6MB in the beginning and 76.6MB in the end (delta: 18.1MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2021-11-20 06:37:37,059 INFO L158 Benchmark]: Witness Printer took 78.70ms. Allocated memory is still 144.7MB. Free memory was 76.6MB in the beginning and 74.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:37:37,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 600.91ms. Allocated memory is still 94.4MB. Free memory was 55.8MB in the beginning and 62.6MB in the end (delta: -6.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.97ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 60.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.26ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 58.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 821.90ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 58.5MB in the beginning and 95.2MB in the end (delta: -36.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9491.54ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 94.6MB in the beginning and 76.6MB in the end (delta: 18.1MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. * Witness Printer took 78.70ms. Allocated memory is still 144.7MB. Free memory was 76.6MB in the beginning and 74.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 1037]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); [L1005] head->next = ((void*)0) VAL [head={-1:0}] [L1006] head->prev = ((void*)0) VAL [head={-1:0}] [L1007] head->data = 0 VAL [head={-1:0}] [L1009] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 VAL [head={-1:0}, x={-1:0}] [L1022] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1023] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1023] x->next->prev = x VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1024] x->next->data = 2 VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1026] x = head VAL [head={-1:0}, x={-1:0}] [L1028] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, x={-1:0}] [L1030] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1036] x = x->next [L1037] EXPR x->data VAL [head={-1:0}, x={-2:0}, x->data=2] [L1037] COND TRUE !(2 != x->data) [L1037] reach_error() VAL [head={-1:0}, x={-2:0}] - 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: 1006]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1006]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1007]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1007]: 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 pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: 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 pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1017]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1017]: 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: 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 all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1021]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1021]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1022]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1022]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1023]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1023]: 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 pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: 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 pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: 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: 1030]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1030]: 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: 1032]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: 1035]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1036]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1036]: 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: 1037]: 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 pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: 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 pointer dereference always succeeds Unable to prove that pointer dereference 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: 1047]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1047]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1047]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1048]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1049]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1001]: 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 1 procedures, 136 locations, 64 error locations. Started 1 CEGAR loops. OverallTime: 9.3s, OverallIterations: 19, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2309 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2309 mSDsluCounter, 3953 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2641 mSDsCounter, 297 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4201 IncrementalHoareTripleChecker+Invalid, 4498 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 297 mSolverCounterUnsat, 1312 mSDtfsCounter, 4201 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=3, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 18 MinimizatonAttempts, 454 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 316 NumberOfCodeBlocks, 316 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 2115 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-20 06:37:37,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0fdebb63-ede7-4d1d-b3a0-dc19f3b5c86b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)