./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-token-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:26:35,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:26:35,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:26:35,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:26:35,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:26:35,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:26:35,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:26:35,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:26:35,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:26:35,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:26:35,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:26:35,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:26:35,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:26:35,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:26:35,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:26:35,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:26:35,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:26:35,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:26:35,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:26:35,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:26:35,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:26:35,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:26:35,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:26:35,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:26:35,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:26:35,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:26:35,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:26:35,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:26:35,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:26:35,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:26:35,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:26:35,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:26:35,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:26:35,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:26:35,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:26:35,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:26:35,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:26:35,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:26:35,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:26:35,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:26:35,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:26:35,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2022-12-13 18:26:35,222 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:26:35,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:26:35,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:26:35,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:26:35,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:26:35,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:26:35,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:26:35,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:26:35,229 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:26:35,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:26:35,230 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:26:35,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:26:35,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:26:35,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:26:35,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:26:35,231 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 18:26:35,231 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 18:26:35,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:26:35,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:26:35,231 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:26:35,231 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:26:35,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:26:35,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:26:35,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:26:35,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:26:35,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:26:35,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:26:35,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:26:35,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:26:35,233 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:26:35,233 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:26:35,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:26:35,233 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:26:35,234 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f8c5ed101296da8e76853e36294f37ed1d85898917b59e645db1ac667d60a8 [2022-12-13 18:26:35,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:26:35,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:26:35,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:26:35,437 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:26:35,437 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:26:35,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/forester-heap/sll-token-1.i [2022-12-13 18:26:38,047 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:26:38,193 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:26:38,193 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i [2022-12-13 18:26:38,201 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/data/d61b21012/79e20325a0154151a772036dcfd67e20/FLAG8db58ba9e [2022-12-13 18:26:38,211 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/data/d61b21012/79e20325a0154151a772036dcfd67e20 [2022-12-13 18:26:38,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:26:38,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:26:38,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:26:38,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:26:38,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:26:38,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d700399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38, skipping insertion in model container [2022-12-13 18:26:38,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:26:38,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:26:38,411 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22162,22175] [2022-12-13 18:26:38,415 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22311,22324] [2022-12-13 18:26:38,416 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22402,22415] [2022-12-13 18:26:38,417 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22484,22497] [2022-12-13 18:26:38,418 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22562,22575] [2022-12-13 18:26:38,420 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22708,22721] [2022-12-13 18:26:38,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:26:38,428 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:26:38,452 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22162,22175] [2022-12-13 18:26:38,453 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22311,22324] [2022-12-13 18:26:38,454 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22402,22415] [2022-12-13 18:26:38,455 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22484,22497] [2022-12-13 18:26:38,456 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22562,22575] [2022-12-13 18:26:38,457 WARN L237 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_d0091587-4259-480c-86dd-93e3ef4e90b0/sv-benchmarks/c/forester-heap/sll-token-1.i[22708,22721] [2022-12-13 18:26:38,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:26:38,474 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:26:38,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38 WrapperNode [2022-12-13 18:26:38,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:26:38,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:26:38,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:26:38,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:26:38,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,489 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,504 INFO L138 Inliner]: procedures = 119, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 132 [2022-12-13 18:26:38,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:26:38,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:26:38,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:26:38,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:26:38,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,523 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:26:38,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:26:38,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:26:38,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:26:38,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (1/1) ... [2022-12-13 18:26:38,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:26:38,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:26:38,550 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:26:38,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:26:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:26:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:26:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 18:26:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:26:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 18:26:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 18:26:38,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:26:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:26:38,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:26:38,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:26:38,668 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:26:38,670 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:26:38,949 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:26:38,955 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:26:38,955 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-12-13 18:26:38,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:26:38 BoogieIcfgContainer [2022-12-13 18:26:38,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:26:38,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:26:38,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:26:38,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:26:38,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:26:38" (1/3) ... [2022-12-13 18:26:38,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2455cd4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:26:38, skipping insertion in model container [2022-12-13 18:26:38,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:26:38" (2/3) ... [2022-12-13 18:26:38,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2455cd4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:26:38, skipping insertion in model container [2022-12-13 18:26:38,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:26:38" (3/3) ... [2022-12-13 18:26:38,963 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-token-1.i [2022-12-13 18:26:38,978 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:26:38,978 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 54 error locations. [2022-12-13 18:26:39,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:26:39,017 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20402d7e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:26:39,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2022-12-13 18:26:39,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 64 states have (on average 2.21875) internal successors, (142), 118 states have internal predecessors, (142), 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) [2022-12-13 18:26:39,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-13 18:26:39,025 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:39,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-13 18:26:39,026 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:39,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:39,030 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2022-12-13 18:26:39,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:39,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119157582] [2022-12-13 18:26:39,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:39,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:39,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:39,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119157582] [2022-12-13 18:26:39,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119157582] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:39,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:39,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:39,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211797039] [2022-12-13 18:26:39,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:39,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:39,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:39,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:39,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:39,200 INFO L87 Difference]: Start difference. First operand has 119 states, 64 states have (on average 2.21875) internal successors, (142), 118 states have internal predecessors, (142), 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) [2022-12-13 18:26:39,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:39,297 INFO L93 Difference]: Finished difference Result 137 states and 140 transitions. [2022-12-13 18:26:39,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:39,299 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 [2022-12-13 18:26:39,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:39,305 INFO L225 Difference]: With dead ends: 137 [2022-12-13 18:26:39,305 INFO L226 Difference]: Without dead ends: 135 [2022-12-13 18:26:39,306 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:26:39,308 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 94 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:39,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 97 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:39,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-13 18:26:39,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 115. [2022-12-13 18:26:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 63 states have (on average 1.8571428571428572) internal successors, (117), 114 states have internal predecessors, (117), 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) [2022-12-13 18:26:39,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 117 transitions. [2022-12-13 18:26:39,333 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 117 transitions. Word has length 3 [2022-12-13 18:26:39,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:39,334 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 117 transitions. [2022-12-13 18:26:39,334 INFO L496 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) [2022-12-13 18:26:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 117 transitions. [2022-12-13 18:26:39,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-13 18:26:39,334 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:39,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-13 18:26:39,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:26:39,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:39,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:39,335 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-12-13 18:26:39,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:39,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790426148] [2022-12-13 18:26:39,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:39,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:39,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:39,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790426148] [2022-12-13 18:26:39,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790426148] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:39,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:39,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:26:39,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549559820] [2022-12-13 18:26:39,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:39,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:26:39,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:39,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:26:39,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:26:39,414 INFO L87 Difference]: Start difference. First operand 115 states and 117 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) [2022-12-13 18:26:39,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:39,486 INFO L93 Difference]: Finished difference Result 141 states and 143 transitions. [2022-12-13 18:26:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:26:39,487 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 [2022-12-13 18:26:39,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:39,488 INFO L225 Difference]: With dead ends: 141 [2022-12-13 18:26:39,488 INFO L226 Difference]: Without dead ends: 141 [2022-12-13 18:26:39,489 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:26:39,490 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 100 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:39,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 99 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:39,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-13 18:26:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 113. [2022-12-13 18:26:39,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 63 states have (on average 1.8253968253968254) internal successors, (115), 112 states have internal predecessors, (115), 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) [2022-12-13 18:26:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 115 transitions. [2022-12-13 18:26:39,499 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 115 transitions. Word has length 3 [2022-12-13 18:26:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:39,499 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 115 transitions. [2022-12-13 18:26:39,499 INFO L496 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) [2022-12-13 18:26:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 115 transitions. [2022-12-13 18:26:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 18:26:39,500 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:39,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:39,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:26:39,501 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:39,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:39,501 INFO L85 PathProgramCache]: Analyzing trace with hash 59263631, now seen corresponding path program 1 times [2022-12-13 18:26:39,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:39,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623401285] [2022-12-13 18:26:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:39,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:39,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:39,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:39,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623401285] [2022-12-13 18:26:39,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623401285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:39,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:39,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:26:39,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422122393] [2022-12-13 18:26:39,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:39,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:26:39,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:39,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:26:39,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:26:39,579 INFO L87 Difference]: Start difference. First operand 113 states and 115 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-12-13 18:26:39,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:39,684 INFO L93 Difference]: Finished difference Result 119 states and 122 transitions. [2022-12-13 18:26:39,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:26:39,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-12-13 18:26:39,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:39,685 INFO L225 Difference]: With dead ends: 119 [2022-12-13 18:26:39,685 INFO L226 Difference]: Without dead ends: 119 [2022-12-13 18:26:39,685 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:26:39,686 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 168 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:39,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 68 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-12-13 18:26:39,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 102. [2022-12-13 18:26:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 65 states have (on average 1.6307692307692307) internal successors, (106), 101 states have internal predecessors, (106), 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) [2022-12-13 18:26:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 106 transitions. [2022-12-13 18:26:39,694 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 106 transitions. Word has length 8 [2022-12-13 18:26:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:39,694 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 106 transitions. [2022-12-13 18:26:39,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-12-13 18:26:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 106 transitions. [2022-12-13 18:26:39,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 18:26:39,695 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:39,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:39,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:26:39,696 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:39,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:39,696 INFO L85 PathProgramCache]: Analyzing trace with hash 59263632, now seen corresponding path program 1 times [2022-12-13 18:26:39,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:39,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635592890] [2022-12-13 18:26:39,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:39,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:39,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:39,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:39,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635592890] [2022-12-13 18:26:39,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635592890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:39,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:39,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:26:39,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649682699] [2022-12-13 18:26:39,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:39,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:26:39,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:39,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:26:39,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:26:39,836 INFO L87 Difference]: Start difference. First operand 102 states and 106 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-12-13 18:26:39,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:39,981 INFO L93 Difference]: Finished difference Result 184 states and 188 transitions. [2022-12-13 18:26:39,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:26:39,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-12-13 18:26:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:39,983 INFO L225 Difference]: With dead ends: 184 [2022-12-13 18:26:39,983 INFO L226 Difference]: Without dead ends: 184 [2022-12-13 18:26:39,984 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:26:39,985 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 195 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:39,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 104 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:39,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-12-13 18:26:39,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 133. [2022-12-13 18:26:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 96 states have (on average 1.5) 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) [2022-12-13 18:26:39,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 144 transitions. [2022-12-13 18:26:39,993 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 144 transitions. Word has length 8 [2022-12-13 18:26:39,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:39,993 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 144 transitions. [2022-12-13 18:26:39,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-12-13 18:26:39,993 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 144 transitions. [2022-12-13 18:26:39,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:26:39,994 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:39,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:39,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:26:39,994 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:39,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:39,995 INFO L85 PathProgramCache]: Analyzing trace with hash 467003055, now seen corresponding path program 1 times [2022-12-13 18:26:39,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:39,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493634663] [2022-12-13 18:26:39,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:39,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:40,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:40,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:40,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493634663] [2022-12-13 18:26:40,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493634663] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:40,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:40,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:26:40,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720318656] [2022-12-13 18:26:40,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:40,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:26:40,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:40,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:26:40,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:26:40,128 INFO L87 Difference]: Start difference. First operand 133 states and 144 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2022-12-13 18:26:40,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:40,267 INFO L93 Difference]: Finished difference Result 132 states and 143 transitions. [2022-12-13 18:26:40,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:26:40,268 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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 [2022-12-13 18:26:40,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:40,269 INFO L225 Difference]: With dead ends: 132 [2022-12-13 18:26:40,269 INFO L226 Difference]: Without dead ends: 132 [2022-12-13 18:26:40,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:26:40,270 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 64 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:40,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 221 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:40,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-12-13 18:26:40,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-12-13 18:26:40,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 96 states have (on average 1.4895833333333333) internal successors, (143), 131 states have internal predecessors, (143), 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) [2022-12-13 18:26:40,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 143 transitions. [2022-12-13 18:26:40,277 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 143 transitions. Word has length 12 [2022-12-13 18:26:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:40,277 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 143 transitions. [2022-12-13 18:26:40,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2022-12-13 18:26:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 143 transitions. [2022-12-13 18:26:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:26:40,278 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:40,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:40,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:26:40,279 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:40,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:40,279 INFO L85 PathProgramCache]: Analyzing trace with hash 467003056, now seen corresponding path program 1 times [2022-12-13 18:26:40,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:40,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996542698] [2022-12-13 18:26:40,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:40,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:40,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:40,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996542698] [2022-12-13 18:26:40,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996542698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:40,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:40,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 18:26:40,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450500357] [2022-12-13 18:26:40,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:40,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:26:40,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:40,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:26:40,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:26:40,453 INFO L87 Difference]: Start difference. First operand 132 states and 143 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2022-12-13 18:26:40,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:40,636 INFO L93 Difference]: Finished difference Result 131 states and 142 transitions. [2022-12-13 18:26:40,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:26:40,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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 [2022-12-13 18:26:40,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:40,637 INFO L225 Difference]: With dead ends: 131 [2022-12-13 18:26:40,637 INFO L226 Difference]: Without dead ends: 131 [2022-12-13 18:26:40,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:26:40,638 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 19 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:40,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 302 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:40,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-12-13 18:26:40,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 116. [2022-12-13 18:26:40,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 86 states have (on average 1.4651162790697674) internal successors, (126), 115 states have internal predecessors, (126), 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) [2022-12-13 18:26:40,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 126 transitions. [2022-12-13 18:26:40,641 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 126 transitions. Word has length 12 [2022-12-13 18:26:40,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:40,642 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 126 transitions. [2022-12-13 18:26:40,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 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) [2022-12-13 18:26:40,642 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 126 transitions. [2022-12-13 18:26:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 18:26:40,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:40,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:40,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 18:26:40,642 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:40,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:40,643 INFO L85 PathProgramCache]: Analyzing trace with hash 763856048, now seen corresponding path program 1 times [2022-12-13 18:26:40,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:40,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959437558] [2022-12-13 18:26:40,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:40,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:40,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:40,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:40,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959437558] [2022-12-13 18:26:40,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959437558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:40,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:40,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:26:40,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733261231] [2022-12-13 18:26:40,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:40,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:26:40,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:40,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:26:40,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:26:40,710 INFO L87 Difference]: Start difference. First operand 116 states and 126 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-12-13 18:26:40,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:40,800 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2022-12-13 18:26:40,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:26:40,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-12-13 18:26:40,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:40,801 INFO L225 Difference]: With dead ends: 115 [2022-12-13 18:26:40,801 INFO L226 Difference]: Without dead ends: 115 [2022-12-13 18:26:40,801 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:26:40,802 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 5 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:40,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 244 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-12-13 18:26:40,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-12-13 18:26:40,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 114 states have internal predecessors, (125), 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) [2022-12-13 18:26:40,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 125 transitions. [2022-12-13 18:26:40,811 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 125 transitions. Word has length 13 [2022-12-13 18:26:40,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:40,811 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 125 transitions. [2022-12-13 18:26:40,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-12-13 18:26:40,812 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 125 transitions. [2022-12-13 18:26:40,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 18:26:40,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:40,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:40,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 18:26:40,813 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:40,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:40,814 INFO L85 PathProgramCache]: Analyzing trace with hash 763856049, now seen corresponding path program 1 times [2022-12-13 18:26:40,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:40,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285333108] [2022-12-13 18:26:40,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:40,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:40,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:40,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:40,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285333108] [2022-12-13 18:26:40,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285333108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:40,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:40,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:26:40,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198492367] [2022-12-13 18:26:40,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:40,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:26:40,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:40,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:26:40,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:26:40,954 INFO L87 Difference]: Start difference. First operand 115 states and 125 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-12-13 18:26:41,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:41,045 INFO L93 Difference]: Finished difference Result 114 states and 124 transitions. [2022-12-13 18:26:41,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:26:41,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-12-13 18:26:41,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:41,046 INFO L225 Difference]: With dead ends: 114 [2022-12-13 18:26:41,047 INFO L226 Difference]: Without dead ends: 114 [2022-12-13 18:26:41,047 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:26:41,048 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 3 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:41,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 246 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:41,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-13 18:26:41,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-12-13 18:26:41,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 86 states have (on average 1.441860465116279) internal successors, (124), 113 states have internal predecessors, (124), 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) [2022-12-13 18:26:41,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2022-12-13 18:26:41,052 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 13 [2022-12-13 18:26:41,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:41,052 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2022-12-13 18:26:41,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2022-12-13 18:26:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2022-12-13 18:26:41,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 18:26:41,053 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:41,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:41,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:26:41,053 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:41,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:41,054 INFO L85 PathProgramCache]: Analyzing trace with hash 2113337263, now seen corresponding path program 1 times [2022-12-13 18:26:41,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:41,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324808490] [2022-12-13 18:26:41,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:41,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:41,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:41,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:41,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324808490] [2022-12-13 18:26:41,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324808490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:41,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:41,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 18:26:41,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712042869] [2022-12-13 18:26:41,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:41,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:26:41,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:41,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:26:41,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:26:41,114 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2022-12-13 18:26:41,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:41,216 INFO L93 Difference]: Finished difference Result 125 states and 136 transitions. [2022-12-13 18:26:41,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 18:26:41,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 [2022-12-13 18:26:41,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:41,217 INFO L225 Difference]: With dead ends: 125 [2022-12-13 18:26:41,217 INFO L226 Difference]: Without dead ends: 125 [2022-12-13 18:26:41,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:26:41,218 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 16 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:41,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 366 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:41,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-12-13 18:26:41,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 112. [2022-12-13 18:26:41,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 85 states have (on average 1.4352941176470588) internal successors, (122), 111 states have internal predecessors, (122), 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) [2022-12-13 18:26:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 122 transitions. [2022-12-13 18:26:41,222 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 122 transitions. Word has length 14 [2022-12-13 18:26:41,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:41,222 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 122 transitions. [2022-12-13 18:26:41,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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) [2022-12-13 18:26:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 122 transitions. [2022-12-13 18:26:41,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 18:26:41,223 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:41,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:41,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 18:26:41,223 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:41,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:41,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1298827700, now seen corresponding path program 1 times [2022-12-13 18:26:41,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:41,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391564518] [2022-12-13 18:26:41,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:41,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:26:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:26:41,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:26:41,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391564518] [2022-12-13 18:26:41,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391564518] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:26:41,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:26:41,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:26:41,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540306406] [2022-12-13 18:26:41,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:26:41,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:26:41,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:26:41,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:26:41,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:26:41,259 INFO L87 Difference]: Start difference. First operand 112 states and 122 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2022-12-13 18:26:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:26:41,330 INFO L93 Difference]: Finished difference Result 168 states and 173 transitions. [2022-12-13 18:26:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:26:41,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 [2022-12-13 18:26:41,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:26:41,331 INFO L225 Difference]: With dead ends: 168 [2022-12-13 18:26:41,331 INFO L226 Difference]: Without dead ends: 168 [2022-12-13 18:26:41,331 INFO L412 NwaCegarLoop]: 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 [2022-12-13 18:26:41,332 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 167 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:26:41,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 131 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:26:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-13 18:26:41,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 110. [2022-12-13 18:26:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 84 states have (on average 1.4285714285714286) internal successors, (120), 109 states have internal predecessors, (120), 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) [2022-12-13 18:26:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2022-12-13 18:26:41,336 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 16 [2022-12-13 18:26:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:26:41,336 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2022-12-13 18:26:41,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2022-12-13 18:26:41,336 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2022-12-13 18:26:41,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 18:26:41,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:26:41,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:41,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 18:26:41,337 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 51 more)] === [2022-12-13 18:26:41,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:26:41,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1685750883, now seen corresponding path program 1 times [2022-12-13 18:26:41,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:26:41,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624841879] [2022-12-13 18:26:41,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:26:41,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:26:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:26:41,355 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:26:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:26:41,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:26:41,382 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:26:41,383 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK (53 of 54 remaining) [2022-12-13 18:26:41,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 54 remaining) [2022-12-13 18:26:41,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 54 remaining) [2022-12-13 18:26:41,384 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK (42 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 54 remaining) [2022-12-13 18:26:41,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK (33 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (28 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 54 remaining) [2022-12-13 18:26:41,386 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK (19 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_FREE (14 of 54 remaining) [2022-12-13 18:26:41,387 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_FREE (13 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_FREE (12 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK (9 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_FREE (6 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_FREE (5 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE (4 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE (3 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE (2 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_FREE (1 of 54 remaining) [2022-12-13 18:26:41,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK (0 of 54 remaining) [2022-12-13 18:26:41,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 18:26:41,391 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:26:41,394 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:26:41,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:26:41 BoogieIcfgContainer [2022-12-13 18:26:41,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:26:41,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:26:41,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:26:41,409 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:26:41,410 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:26:38" (3/4) ... [2022-12-13 18:26:41,411 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 18:26:41,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:26:41,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:26:41,434 INFO L158 Benchmark]: Toolchain (without parser) took 3219.59ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 140.9MB in the beginning and 172.9MB in the end (delta: -32.0MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-12-13 18:26:41,434 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:26:41,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.52ms. Allocated memory is still 178.3MB. Free memory was 140.9MB in the beginning and 122.6MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 18:26:41,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.43ms. Allocated memory is still 178.3MB. Free memory was 122.6MB in the beginning and 120.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:26:41,434 INFO L158 Benchmark]: Boogie Preprocessor took 21.11ms. Allocated memory is still 178.3MB. Free memory was 120.5MB in the beginning and 119.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:26:41,434 INFO L158 Benchmark]: RCFGBuilder took 430.28ms. Allocated memory is still 178.3MB. Free memory was 119.0MB in the beginning and 98.4MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 18:26:41,435 INFO L158 Benchmark]: TraceAbstraction took 2450.29ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 98.0MB in the beginning and 175.0MB in the end (delta: -77.0MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. [2022-12-13 18:26:41,435 INFO L158 Benchmark]: Witness Printer took 24.21ms. Allocated memory is still 213.9MB. Free memory was 175.0MB in the beginning and 172.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:26:41,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 178.3MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.52ms. Allocated memory is still 178.3MB. Free memory was 140.9MB in the beginning and 122.6MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.43ms. Allocated memory is still 178.3MB. Free memory was 122.6MB in the beginning and 120.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.11ms. Allocated memory is still 178.3MB. Free memory was 120.5MB in the beginning and 119.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 430.28ms. Allocated memory is still 178.3MB. Free memory was 119.0MB in the beginning and 98.4MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2450.29ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 98.0MB in the beginning and 175.0MB in the end (delta: -77.0MB). Peak memory consumption was 56.2MB. Max. memory is 16.1GB. * Witness Printer took 24.21ms. Allocated memory is still 213.9MB. Free memory was 175.0MB in the beginning and 172.9MB 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: 1031]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* head = malloc(sizeof(SLL)); [L1004] head->next = ((void*)0) VAL [head={-1:0}] [L1005] head->data = 0 VAL [head={-1:0}] [L1007] SLL* x = head; VAL [head={-1:0}, x={-1:0}] [L1010] COND FALSE !(__VERIFIER_nondet_int()) [L1018] x->data = 1 VAL [head={-1:0}, x={-1:0}] [L1019] x->next = malloc(sizeof(SLL)) VAL [head={-1:0}, malloc(sizeof(SLL))={-2:0}, x={-1:0}] [L1020] EXPR x->next VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1020] x->next->data = 2 VAL [head={-1:0}, x={-1:0}, x->next={-2:0}] [L1022] x = head VAL [head={-1:0}, x={-1:0}] [L1024] COND FALSE !(!(((void*)0) != x)) VAL [head={-1:0}, x={-1:0}] [L1026] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1026] COND FALSE !(1 != x->data) [L1031] EXPR x->data VAL [head={-1:0}, x={-1:0}, x->data=1] [L1031] COND TRUE !(2 == x->data) [L1031] reach_error() VAL [head={-1:0}, x={-1:0}] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1016]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1024]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: 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: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1041]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1043]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1044]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1045]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1000]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 54 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 831 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 831 mSDsluCounter, 1878 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1127 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1231 IncrementalHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 751 mSDtfsCounter, 1231 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=4, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 202 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 393 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 18:26:41,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0091587-4259-480c-86dd-93e3ef4e90b0/bin/uautomizer-uyxdKDjOR8/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)