./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/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_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 --- 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 13:15:01,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:15:01,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:15:01,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:15:01,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:15:01,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:15:01,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:15:01,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:15:01,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:15:01,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:15:01,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:15:01,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:15:01,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:15:01,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:15:01,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:15:01,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:15:01,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:15:01,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:15:01,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:15:01,379 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:15:01,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:15:01,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:15:01,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:15:01,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:15:01,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:15:01,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:15:01,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:15:01,386 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:15:01,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:15:01,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:15:01,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:15:01,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:15:01,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:15:01,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:15:01,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:15:01,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:15:01,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:15:01,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:15:01,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:15:01,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:15:01,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:15:01,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 13:15:01,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:15:01,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:15:01,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:15:01,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:15:01,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:15:01,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:15:01,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:15:01,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:15:01,408 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:15:01,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:15:01,408 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:15:01,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:15:01,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:15:01,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:15:01,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:15:01,408 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 13:15:01,409 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 13:15:01,409 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 13:15:01,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:15:01,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:15:01,409 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:15:01,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:15:01,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:15:01,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:15:01,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:15:01,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:15:01,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:15:01,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:15:01,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:15:01,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:15:01,410 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:15:01,410 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:15:01,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:15:01,410 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:15:01,411 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_4fb055c4-95c4-4599-ad0b-47ace7a0f336/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f12d466eb2f537fd698a609dad75de92993414755aa8aadb35a91de87d65611 [2022-12-13 13:15:01,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:15:01,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:15:01,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:15:01,591 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:15:01,592 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:15:01,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i [2022-12-13 13:15:04,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:15:04,309 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:15:04,310 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i [2022-12-13 13:15:04,319 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/data/513593b97/379e25fe53af444a896907ff4b0d9cfa/FLAGd80e870cb [2022-12-13 13:15:04,700 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/data/513593b97/379e25fe53af444a896907ff4b0d9cfa [2022-12-13 13:15:04,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:15:04,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:15:04,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:15:04,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:15:04,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:15:04,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:04,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1def003c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04, skipping insertion in model container [2022-12-13 13:15:04,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:04,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:15:04,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:15:04,843 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_4fb055c4-95c4-4599-ad0b-47ace7a0f336/sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-12-13 13:15:04,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:15:04,933 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:15:04,941 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_4fb055c4-95c4-4599-ad0b-47ace7a0f336/sv-benchmarks/c/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2022-12-13 13:15:04,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:15:04,984 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:15:04,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04 WrapperNode [2022-12-13 13:15:04,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:15:04,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:15:04,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:15:04,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:15:04,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,018 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 84 [2022-12-13 13:15:05,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:15:05,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:15:05,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:15:05,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:15:05,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,034 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:15:05,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:15:05,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:15:05,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:15:05,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (1/1) ... [2022-12-13 13:15:05,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:15:05,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:15:05,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:15:05,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:15:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:15:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:15:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 13:15:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:15:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:15:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 13:15:05,108 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 13:15:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:15:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:15:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:15:05,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:15:05,109 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:15:05,200 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:15:05,202 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:15:05,328 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:15:05,333 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:15:05,334 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:15:05,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:15:05 BoogieIcfgContainer [2022-12-13 13:15:05,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:15:05,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:15:05,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:15:05,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:15:05,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:15:04" (1/3) ... [2022-12-13 13:15:05,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a45985f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:15:05, skipping insertion in model container [2022-12-13 13:15:05,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:15:04" (2/3) ... [2022-12-13 13:15:05,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a45985f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:15:05, skipping insertion in model container [2022-12-13 13:15:05,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:15:05" (3/3) ... [2022-12-13 13:15:05,342 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2022-12-13 13:15:05,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:15:05,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-12-13 13:15:05,356 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:15:05,390 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 13:15:05,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 113 transitions, 234 flow [2022-12-13 13:15:05,451 INFO L130 PetriNetUnfolder]: 4/112 cut-off events. [2022-12-13 13:15:05,451 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:15:05,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 112 events. 4/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 99 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 13:15:05,455 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 113 transitions, 234 flow [2022-12-13 13:15:05,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 107 transitions, 220 flow [2022-12-13 13:15:05,461 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:15:05,469 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 107 transitions, 220 flow [2022-12-13 13:15:05,471 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 107 transitions, 220 flow [2022-12-13 13:15:05,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 107 transitions, 220 flow [2022-12-13 13:15:05,492 INFO L130 PetriNetUnfolder]: 4/107 cut-off events. [2022-12-13 13:15:05,492 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:15:05,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 107 events. 4/107 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 98 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-12-13 13:15:05,500 INFO L119 LiptonReduction]: Number of co-enabled transitions 1440 [2022-12-13 13:15:07,872 INFO L134 LiptonReduction]: Checked pairs total: 4209 [2022-12-13 13:15:07,873 INFO L136 LiptonReduction]: Total number of compositions: 111 [2022-12-13 13:15:07,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:15:07,892 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;@6fe28b63, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:15:07,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 13:15:07,894 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:15:07,894 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:15:07,894 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:07,894 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:15:07,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:07,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:07,898 INFO L85 PathProgramCache]: Analyzing trace with hash 417, now seen corresponding path program 1 times [2022-12-13 13:15:07,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:07,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015224397] [2022-12-13 13:15:07,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:07,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:07,979 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 13:15:07,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:07,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015224397] [2022-12-13 13:15:07,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015224397] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:07,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:07,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:15:07,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344691626] [2022-12-13 13:15:07,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:07,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:15:07,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:08,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:15:08,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:15:08,005 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 224 [2022-12-13 13:15:08,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 31 transitions, 68 flow. Second operand has 2 states, 2 states have (on average 103.5) internal successors, (207), 2 states have internal predecessors, (207), 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 13:15:08,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:08,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 224 [2022-12-13 13:15:08,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:08,069 INFO L130 PetriNetUnfolder]: 90/204 cut-off events. [2022-12-13 13:15:08,069 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:15:08,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 413 conditions, 204 events. 90/204 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 761 event pairs, 90 based on Foata normal form. 20/150 useless extension candidates. Maximal degree in co-relation 399. Up to 204 conditions per place. [2022-12-13 13:15:08,072 INFO L137 encePairwiseOnDemand]: 218/224 looper letters, 23 selfloop transitions, 0 changer transitions 0/24 dead transitions. [2022-12-13 13:15:08,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 24 transitions, 100 flow [2022-12-13 13:15:08,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:15:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:15:08,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 235 transitions. [2022-12-13 13:15:08,085 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5245535714285714 [2022-12-13 13:15:08,086 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 235 transitions. [2022-12-13 13:15:08,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 235 transitions. [2022-12-13 13:15:08,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:08,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 235 transitions. [2022-12-13 13:15:08,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 117.5) internal successors, (235), 2 states have internal predecessors, (235), 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 13:15:08,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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 13:15:08,099 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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 13:15:08,100 INFO L175 Difference]: Start difference. First operand has 32 places, 31 transitions, 68 flow. Second operand 2 states and 235 transitions. [2022-12-13 13:15:08,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 24 transitions, 100 flow [2022-12-13 13:15:08,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:15:08,104 INFO L231 Difference]: Finished difference. Result has 27 places, 24 transitions, 50 flow [2022-12-13 13:15:08,106 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2022-12-13 13:15:08,109 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, -5 predicate places. [2022-12-13 13:15:08,109 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 50 flow [2022-12-13 13:15:08,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 103.5) internal successors, (207), 2 states have internal predecessors, (207), 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 13:15:08,109 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:08,109 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:15:08,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:15:08,110 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:08,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:08,110 INFO L85 PathProgramCache]: Analyzing trace with hash 12730117, now seen corresponding path program 1 times [2022-12-13 13:15:08,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:08,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394867118] [2022-12-13 13:15:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:08,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:08,354 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 13:15:08,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:08,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394867118] [2022-12-13 13:15:08,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394867118] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:08,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:08,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:15:08,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258123488] [2022-12-13 13:15:08,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:08,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:15:08,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:08,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:15:08,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:15:08,375 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 224 [2022-12-13 13:15:08,376 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 13:15:08,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:08,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 224 [2022-12-13 13:15:08,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:08,438 INFO L130 PetriNetUnfolder]: 86/196 cut-off events. [2022-12-13 13:15:08,439 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:15:08,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 196 events. 86/196 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 736 event pairs, 58 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 392. Up to 187 conditions per place. [2022-12-13 13:15:08,440 INFO L137 encePairwiseOnDemand]: 219/224 looper letters, 25 selfloop transitions, 3 changer transitions 0/29 dead transitions. [2022-12-13 13:15:08,440 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 116 flow [2022-12-13 13:15:08,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:15:08,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:15:08,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2022-12-13 13:15:08,443 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48214285714285715 [2022-12-13 13:15:08,443 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2022-12-13 13:15:08,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2022-12-13 13:15:08,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:08,444 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2022-12-13 13:15:08,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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 13:15:08,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:08,448 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:08,449 INFO L175 Difference]: Start difference. First operand has 27 places, 24 transitions, 50 flow. Second operand 3 states and 324 transitions. [2022-12-13 13:15:08,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 116 flow [2022-12-13 13:15:08,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:15:08,450 INFO L231 Difference]: Finished difference. Result has 30 places, 26 transitions, 71 flow [2022-12-13 13:15:08,450 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=71, PETRI_PLACES=30, PETRI_TRANSITIONS=26} [2022-12-13 13:15:08,451 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2022-12-13 13:15:08,451 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 26 transitions, 71 flow [2022-12-13 13:15:08,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 13:15:08,451 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:08,452 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:15:08,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:15:08,452 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:08,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:08,452 INFO L85 PathProgramCache]: Analyzing trace with hash -651488764, now seen corresponding path program 1 times [2022-12-13 13:15:08,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:08,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938975860] [2022-12-13 13:15:08,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:08,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:08,617 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 13:15:08,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:08,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938975860] [2022-12-13 13:15:08,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938975860] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:08,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:08,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:15:08,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636208625] [2022-12-13 13:15:08,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:08,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:15:08,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:08,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:15:08,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:15:08,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 224 [2022-12-13 13:15:08,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 26 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 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 13:15:08,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:08,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 224 [2022-12-13 13:15:08,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:08,786 INFO L130 PetriNetUnfolder]: 106/243 cut-off events. [2022-12-13 13:15:08,787 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 13:15:08,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 243 events. 106/243 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1014 event pairs, 36 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 533. Up to 172 conditions per place. [2022-12-13 13:15:08,788 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 42 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2022-12-13 13:15:08,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 51 transitions, 234 flow [2022-12-13 13:15:08,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:15:08,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:15:08,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2022-12-13 13:15:08,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4635416666666667 [2022-12-13 13:15:08,793 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 623 transitions. [2022-12-13 13:15:08,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 623 transitions. [2022-12-13 13:15:08,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:08,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 623 transitions. [2022-12-13 13:15:08,797 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 103.83333333333333) internal successors, (623), 6 states have internal predecessors, (623), 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 13:15:08,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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 13:15:08,804 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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 13:15:08,804 INFO L175 Difference]: Start difference. First operand has 30 places, 26 transitions, 71 flow. Second operand 6 states and 623 transitions. [2022-12-13 13:15:08,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 51 transitions, 234 flow [2022-12-13 13:15:08,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 51 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:15:08,806 INFO L231 Difference]: Finished difference. Result has 37 places, 32 transitions, 128 flow [2022-12-13 13:15:08,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=128, PETRI_PLACES=37, PETRI_TRANSITIONS=32} [2022-12-13 13:15:08,807 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 5 predicate places. [2022-12-13 13:15:08,807 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 32 transitions, 128 flow [2022-12-13 13:15:08,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 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 13:15:08,808 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:08,808 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:15:08,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:15:08,809 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:08,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:08,809 INFO L85 PathProgramCache]: Analyzing trace with hash -651273024, now seen corresponding path program 1 times [2022-12-13 13:15:08,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:08,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123563887] [2022-12-13 13:15:08,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:08,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:08,850 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 13:15:08,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:08,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123563887] [2022-12-13 13:15:08,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123563887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:08,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:08,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:15:08,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54991562] [2022-12-13 13:15:08,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:08,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:15:08,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:08,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:15:08,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:15:08,867 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 224 [2022-12-13 13:15:08,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 32 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 13:15:08,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:08,868 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 224 [2022-12-13 13:15:08,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:08,940 INFO L130 PetriNetUnfolder]: 107/247 cut-off events. [2022-12-13 13:15:08,940 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2022-12-13 13:15:08,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 247 events. 107/247 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1090 event pairs, 58 based on Foata normal form. 11/212 useless extension candidates. Maximal degree in co-relation 645. Up to 203 conditions per place. [2022-12-13 13:15:08,943 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 33 selfloop transitions, 9 changer transitions 0/44 dead transitions. [2022-12-13 13:15:08,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 44 transitions, 254 flow [2022-12-13 13:15:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:15:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:15:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2022-12-13 13:15:08,945 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49107142857142855 [2022-12-13 13:15:08,945 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2022-12-13 13:15:08,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2022-12-13 13:15:08,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:08,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2022-12-13 13:15:08,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 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 13:15:08,950 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:08,951 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:08,951 INFO L175 Difference]: Start difference. First operand has 37 places, 32 transitions, 128 flow. Second operand 3 states and 330 transitions. [2022-12-13 13:15:08,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 44 transitions, 254 flow [2022-12-13 13:15:08,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 241 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 13:15:08,955 INFO L231 Difference]: Finished difference. Result has 39 places, 37 transitions, 191 flow [2022-12-13 13:15:08,955 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=39, PETRI_TRANSITIONS=37} [2022-12-13 13:15:08,956 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2022-12-13 13:15:08,956 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 37 transitions, 191 flow [2022-12-13 13:15:08,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 13:15:08,956 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:08,956 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:08,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:15:08,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:08,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:08,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1278684732, now seen corresponding path program 1 times [2022-12-13 13:15:08,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:08,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757348789] [2022-12-13 13:15:08,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:08,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:08,992 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 13:15:08,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:08,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757348789] [2022-12-13 13:15:08,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757348789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:08,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:08,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:15:08,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881536074] [2022-12-13 13:15:08,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:08,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:15:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:15:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:15:09,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 224 [2022-12-13 13:15:09,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 37 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 13:15:09,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:09,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 224 [2022-12-13 13:15:09,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:09,044 INFO L130 PetriNetUnfolder]: 3/53 cut-off events. [2022-12-13 13:15:09,044 INFO L131 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2022-12-13 13:15:09,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 53 events. 3/53 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 146 event pairs, 0 based on Foata normal form. 10/56 useless extension candidates. Maximal degree in co-relation 160. Up to 37 conditions per place. [2022-12-13 13:15:09,045 INFO L137 encePairwiseOnDemand]: 218/224 looper letters, 18 selfloop transitions, 6 changer transitions 0/26 dead transitions. [2022-12-13 13:15:09,045 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 157 flow [2022-12-13 13:15:09,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:15:09,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:15:09,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 317 transitions. [2022-12-13 13:15:09,046 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47172619047619047 [2022-12-13 13:15:09,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 317 transitions. [2022-12-13 13:15:09,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 317 transitions. [2022-12-13 13:15:09,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:09,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 317 transitions. [2022-12-13 13:15:09,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 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 13:15:09,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:09,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:09,048 INFO L175 Difference]: Start difference. First operand has 39 places, 37 transitions, 191 flow. Second operand 3 states and 317 transitions. [2022-12-13 13:15:09,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 157 flow [2022-12-13 13:15:09,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 131 flow, removed 7 selfloop flow, removed 5 redundant places. [2022-12-13 13:15:09,049 INFO L231 Difference]: Finished difference. Result has 33 places, 26 transitions, 95 flow [2022-12-13 13:15:09,049 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=33, PETRI_TRANSITIONS=26} [2022-12-13 13:15:09,050 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-12-13 13:15:09,050 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 26 transitions, 95 flow [2022-12-13 13:15:09,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 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 13:15:09,050 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:09,050 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:09,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:15:09,050 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:09,051 INFO L85 PathProgramCache]: Analyzing trace with hash 455022069, now seen corresponding path program 1 times [2022-12-13 13:15:09,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:09,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411047352] [2022-12-13 13:15:09,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:09,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:09,077 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 13:15:09,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:09,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411047352] [2022-12-13 13:15:09,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411047352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:09,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:09,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:15:09,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720748922] [2022-12-13 13:15:09,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:09,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:15:09,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:09,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:15:09,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:15:09,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 224 [2022-12-13 13:15:09,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 13:15:09,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:09,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 224 [2022-12-13 13:15:09,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:09,130 INFO L130 PetriNetUnfolder]: 2/43 cut-off events. [2022-12-13 13:15:09,131 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:15:09,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 43 events. 2/43 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 84 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 115. Up to 40 conditions per place. [2022-12-13 13:15:09,131 INFO L137 encePairwiseOnDemand]: 221/224 looper letters, 21 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2022-12-13 13:15:09,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 25 transitions, 137 flow [2022-12-13 13:15:09,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:15:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:15:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2022-12-13 13:15:09,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45982142857142855 [2022-12-13 13:15:09,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 309 transitions. [2022-12-13 13:15:09,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 309 transitions. [2022-12-13 13:15:09,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:09,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 309 transitions. [2022-12-13 13:15:09,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 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 13:15:09,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:09,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:09,135 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 95 flow. Second operand 3 states and 309 transitions. [2022-12-13 13:15:09,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 25 transitions, 137 flow [2022-12-13 13:15:09,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:15:09,136 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 90 flow [2022-12-13 13:15:09,136 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2022-12-13 13:15:09,137 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-12-13 13:15:09,137 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 90 flow [2022-12-13 13:15:09,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 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 13:15:09,137 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:09,137 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:09,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:15:09,137 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:09,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:09,138 INFO L85 PathProgramCache]: Analyzing trace with hash 455022068, now seen corresponding path program 1 times [2022-12-13 13:15:09,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:09,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692945563] [2022-12-13 13:15:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:09,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:09,164 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 13:15:09,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:09,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692945563] [2022-12-13 13:15:09,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692945563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:09,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:09,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:15:09,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76734517] [2022-12-13 13:15:09,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:09,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:15:09,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:09,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:15:09,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:15:09,185 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 224 [2022-12-13 13:15:09,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 13:15:09,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:09,186 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 224 [2022-12-13 13:15:09,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:09,207 INFO L130 PetriNetUnfolder]: 1/33 cut-off events. [2022-12-13 13:15:09,207 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:15:09,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 33 events. 1/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 86. Up to 30 conditions per place. [2022-12-13 13:15:09,208 INFO L137 encePairwiseOnDemand]: 221/224 looper letters, 19 selfloop transitions, 2 changer transitions 1/24 dead transitions. [2022-12-13 13:15:09,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 24 transitions, 131 flow [2022-12-13 13:15:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:15:09,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:15:09,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2022-12-13 13:15:09,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4538690476190476 [2022-12-13 13:15:09,209 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2022-12-13 13:15:09,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2022-12-13 13:15:09,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:09,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2022-12-13 13:15:09,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 13:15:09,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:09,210 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:09,210 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 90 flow. Second operand 3 states and 305 transitions. [2022-12-13 13:15:09,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 24 transitions, 131 flow [2022-12-13 13:15:09,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 24 transitions, 127 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:15:09,212 INFO L231 Difference]: Finished difference. Result has 32 places, 23 transitions, 83 flow [2022-12-13 13:15:09,212 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=83, PETRI_PLACES=32, PETRI_TRANSITIONS=23} [2022-12-13 13:15:09,212 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 0 predicate places. [2022-12-13 13:15:09,212 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 23 transitions, 83 flow [2022-12-13 13:15:09,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 13:15:09,213 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:09,213 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:09,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:15:09,213 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:09,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:09,213 INFO L85 PathProgramCache]: Analyzing trace with hash -810446523, now seen corresponding path program 1 times [2022-12-13 13:15:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:09,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703769442] [2022-12-13 13:15:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:09,356 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 13:15:09,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:09,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703769442] [2022-12-13 13:15:09,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703769442] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:09,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:09,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:15:09,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440847957] [2022-12-13 13:15:09,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:09,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:15:09,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:09,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:15:09,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:15:09,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 224 [2022-12-13 13:15:09,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 23 transitions, 83 flow. Second operand has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 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 13:15:09,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:09,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 224 [2022-12-13 13:15:09,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:09,457 INFO L130 PetriNetUnfolder]: 1/31 cut-off events. [2022-12-13 13:15:09,457 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:15:09,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 31 events. 1/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 1/32 useless extension candidates. Maximal degree in co-relation 82. Up to 19 conditions per place. [2022-12-13 13:15:09,458 INFO L137 encePairwiseOnDemand]: 217/224 looper letters, 19 selfloop transitions, 7 changer transitions 0/26 dead transitions. [2022-12-13 13:15:09,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 26 transitions, 141 flow [2022-12-13 13:15:09,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:15:09,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:15:09,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2022-12-13 13:15:09,464 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43452380952380953 [2022-12-13 13:15:09,464 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 584 transitions. [2022-12-13 13:15:09,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 584 transitions. [2022-12-13 13:15:09,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:09,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 584 transitions. [2022-12-13 13:15:09,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.33333333333333) internal successors, (584), 6 states have internal predecessors, (584), 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 13:15:09,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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 13:15:09,469 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 224.0) internal successors, (1568), 7 states have internal predecessors, (1568), 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 13:15:09,469 INFO L175 Difference]: Start difference. First operand has 32 places, 23 transitions, 83 flow. Second operand 6 states and 584 transitions. [2022-12-13 13:15:09,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 26 transitions, 141 flow [2022-12-13 13:15:09,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 26 transitions, 137 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:15:09,470 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 95 flow [2022-12-13 13:15:09,470 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=95, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2022-12-13 13:15:09,470 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 2 predicate places. [2022-12-13 13:15:09,470 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 95 flow [2022-12-13 13:15:09,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 94.83333333333333) internal successors, (569), 6 states have internal predecessors, (569), 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 13:15:09,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:09,471 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:09,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:15:09,471 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:09,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash 319135826, now seen corresponding path program 1 times [2022-12-13 13:15:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:09,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174464224] [2022-12-13 13:15:09,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:09,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:09,607 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 13:15:09,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:09,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174464224] [2022-12-13 13:15:09,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174464224] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:09,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:09,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:15:09,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594368524] [2022-12-13 13:15:09,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:09,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:15:09,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:09,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:15:09,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:15:09,649 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 224 [2022-12-13 13:15:09,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 95 flow. Second operand has 7 states, 7 states have (on average 92.71428571428571) internal successors, (649), 7 states have internal predecessors, (649), 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 13:15:09,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:09,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 224 [2022-12-13 13:15:09,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:09,732 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2022-12-13 13:15:09,732 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 13:15:09,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 32 events. 0/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 29 event pairs, 0 based on Foata normal form. 1/33 useless extension candidates. Maximal degree in co-relation 0. Up to 8 conditions per place. [2022-12-13 13:15:09,732 INFO L137 encePairwiseOnDemand]: 216/224 looper letters, 17 selfloop transitions, 12 changer transitions 0/29 dead transitions. [2022-12-13 13:15:09,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 29 transitions, 167 flow [2022-12-13 13:15:09,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:15:09,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 13:15:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 940 transitions. [2022-12-13 13:15:09,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41964285714285715 [2022-12-13 13:15:09,734 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 940 transitions. [2022-12-13 13:15:09,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 940 transitions. [2022-12-13 13:15:09,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:09,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 940 transitions. [2022-12-13 13:15:09,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 94.0) internal successors, (940), 10 states have internal predecessors, (940), 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 13:15:09,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 224.0) internal successors, (2464), 11 states have internal predecessors, (2464), 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 13:15:09,738 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 224.0) internal successors, (2464), 11 states have internal predecessors, (2464), 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 13:15:09,738 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 95 flow. Second operand 10 states and 940 transitions. [2022-12-13 13:15:09,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 29 transitions, 167 flow [2022-12-13 13:15:09,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 29 transitions, 155 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 13:15:09,739 INFO L231 Difference]: Finished difference. Result has 38 places, 23 transitions, 105 flow [2022-12-13 13:15:09,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=105, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2022-12-13 13:15:09,740 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2022-12-13 13:15:09,740 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 105 flow [2022-12-13 13:15:09,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.71428571428571) internal successors, (649), 7 states have internal predecessors, (649), 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 13:15:09,740 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:15:09,740 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:09,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:15:09,740 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 9 more)] === [2022-12-13 13:15:09,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:15:09,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1159766551, now seen corresponding path program 1 times [2022-12-13 13:15:09,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:15:09,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184073597] [2022-12-13 13:15:09,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:15:09,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:15:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:15:09,827 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 13:15:09,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:15:09,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184073597] [2022-12-13 13:15:09,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184073597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:15:09,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:15:09,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:15:09,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955586615] [2022-12-13 13:15:09,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:15:09,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:15:09,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:15:09,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:15:09,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:15:09,847 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 224 [2022-12-13 13:15:09,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 105 flow. Second operand has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 13:15:09,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:15:09,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 224 [2022-12-13 13:15:09,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:15:09,863 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-12-13 13:15:09,863 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 13:15:09,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 30 events. 0/30 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs, 0 based on Foata normal form. 2/32 useless extension candidates. Maximal degree in co-relation 0. Up to 28 conditions per place. [2022-12-13 13:15:09,863 INFO L137 encePairwiseOnDemand]: 222/224 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2022-12-13 13:15:09,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 22 transitions, 143 flow [2022-12-13 13:15:09,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:15:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:15:09,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 313 transitions. [2022-12-13 13:15:09,864 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46577380952380953 [2022-12-13 13:15:09,864 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 313 transitions. [2022-12-13 13:15:09,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 313 transitions. [2022-12-13 13:15:09,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:15:09,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 313 transitions. [2022-12-13 13:15:09,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 13:15:09,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:09,866 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 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 13:15:09,866 INFO L175 Difference]: Start difference. First operand has 38 places, 23 transitions, 105 flow. Second operand 3 states and 313 transitions. [2022-12-13 13:15:09,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 22 transitions, 143 flow [2022-12-13 13:15:09,867 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 22 transitions, 120 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-12-13 13:15:09,867 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2022-12-13 13:15:09,867 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2022-12-13 13:15:09,867 INFO L288 CegarLoopForPetriNet]: 32 programPoint places, 1 predicate places. [2022-12-13 13:15:09,867 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2022-12-13 13:15:09,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.33333333333333) internal successors, (313), 3 states have internal predecessors, (313), 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 13:15:09,869 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (11 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (8 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (5 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 12 remaining) [2022-12-13 13:15:09,870 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 12 remaining) [2022-12-13 13:15:09,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:15:09,871 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:15:09,874 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:15:09,874 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:15:09,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:15:09 BasicIcfg [2022-12-13 13:15:09,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:15:09,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:15:09,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:15:09,878 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:15:09,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:15:05" (3/4) ... [2022-12-13 13:15:09,880 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:15:09,884 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 13:15:09,887 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-13 13:15:09,887 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 13:15:09,887 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 13:15:09,887 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:15:09,909 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:15:09,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:15:09,910 INFO L158 Benchmark]: Toolchain (without parser) took 5206.87ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 110.1MB in the beginning and 96.2MB in the end (delta: 13.9MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2022-12-13 13:15:09,910 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:15:09,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.19ms. Allocated memory is still 146.8MB. Free memory was 109.8MB in the beginning and 90.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:15:09,911 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.60ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:15:09,911 INFO L158 Benchmark]: Boogie Preprocessor took 18.51ms. Allocated memory is still 146.8MB. Free memory was 88.8MB in the beginning and 87.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:15:09,911 INFO L158 Benchmark]: RCFGBuilder took 298.12ms. Allocated memory is still 146.8MB. Free memory was 87.2MB in the beginning and 72.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:15:09,912 INFO L158 Benchmark]: TraceAbstraction took 4540.14ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 72.1MB in the beginning and 98.3MB in the end (delta: -26.2MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2022-12-13 13:15:09,912 INFO L158 Benchmark]: Witness Printer took 31.80ms. Allocated memory is still 218.1MB. Free memory was 98.3MB in the beginning and 96.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:15:09,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.19ms. Allocated memory is still 146.8MB. Free memory was 109.8MB in the beginning and 90.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.60ms. Allocated memory is still 146.8MB. Free memory was 90.9MB in the beginning and 88.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.51ms. Allocated memory is still 146.8MB. Free memory was 88.8MB in the beginning and 87.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.12ms. Allocated memory is still 146.8MB. Free memory was 87.2MB in the beginning and 72.8MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4540.14ms. Allocated memory was 146.8MB in the beginning and 218.1MB in the end (delta: 71.3MB). Free memory was 72.1MB in the beginning and 98.3MB in the end (delta: -26.2MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * Witness Printer took 31.80ms. Allocated memory is still 218.1MB. Free memory was 98.3MB in the beginning and 96.2MB 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: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 107 PlacesBefore, 32 PlacesAfterwards, 107 TransitionsBefore, 31 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 111 TotalNumberOfCompositions, 4209 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1909, independent: 1682, independent conditional: 0, independent unconditional: 1682, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 902, independent: 863, independent conditional: 0, independent unconditional: 863, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1909, independent: 819, independent conditional: 0, independent unconditional: 819, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 902, unknown conditional: 0, unknown unconditional: 902] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 695]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 140 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 400 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 222 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 870 IncrementalHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 18 mSDtfsCounter, 870 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=4, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 470 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 - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:15:09,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fb055c4-95c4-4599-ad0b-47ace7a0f336/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 Result: TRUE