./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe008_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe008_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 3447fa4cbed8c2dd9f8bb92c4d44acca15639ccfd4d81b58d710cf11090f115c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:41:15,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:41:15,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:41:15,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:41:15,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:41:15,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:41:15,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:41:15,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:41:15,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:41:15,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:41:15,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:41:15,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:41:15,269 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:41:15,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:41:15,271 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:41:15,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:41:15,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:41:15,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:41:15,273 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:41:15,274 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:41:15,275 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:41:15,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:41:15,276 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:41:15,276 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:41:15,277 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:41:15,277 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:41:15,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:41:15,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:41:15,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:41:15,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:15,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:41:15,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:41:15,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:41:15,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:41:15,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:41:15,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:41:15,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:41:15,283 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:41:15,283 INFO L153 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_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3447fa4cbed8c2dd9f8bb92c4d44acca15639ccfd4d81b58d710cf11090f115c [2023-11-19 07:41:15,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:41:15,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:41:15,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:41:15,605 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:41:15,606 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:41:15,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe008_tso.i [2023-11-19 07:41:18,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:41:19,050 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:41:19,051 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/sv-benchmarks/c/pthread-wmm/safe008_tso.i [2023-11-19 07:41:19,078 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/data/4ac43dee8/076f01e0f9144c5cb76e878e84f7bc6c/FLAG9e127a175 [2023-11-19 07:41:19,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/data/4ac43dee8/076f01e0f9144c5cb76e878e84f7bc6c [2023-11-19 07:41:19,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:41:19,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:41:19,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:19,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:41:19,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:41:19,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35abf39c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19, skipping insertion in model container [2023-11-19 07:41:19,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:41:19,558 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:19,575 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:41:19,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:41:19,656 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:41:19,656 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:41:19,664 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:41:19,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19 WrapperNode [2023-11-19 07:41:19,665 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:41:19,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:19,667 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:41:19,667 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:41:19,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,710 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,745 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-19 07:41:19,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:41:19,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:41:19,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:41:19,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:41:19,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,784 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:41:19,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:41:19,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:41:19,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:41:19,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (1/1) ... [2023-11-19 07:41:19,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:41:19,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:41:19,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:41:19,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:41:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:41:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 07:41:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:41:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:41:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:41:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 07:41:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 07:41:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 07:41:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 07:41:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 07:41:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 07:41:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:41:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 07:41:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:41:19,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:41:19,901 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:41:20,067 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:41:20,069 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:41:20,268 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:41:20,278 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:41:20,279 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:41:20,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:20 BoogieIcfgContainer [2023-11-19 07:41:20,283 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:41:20,286 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:41:20,286 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:41:20,290 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:41:20,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:41:19" (1/3) ... [2023-11-19 07:41:20,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d247ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:20, skipping insertion in model container [2023-11-19 07:41:20,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:41:19" (2/3) ... [2023-11-19 07:41:20,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d247ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:41:20, skipping insertion in model container [2023-11-19 07:41:20,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:20" (3/3) ... [2023-11-19 07:41:20,294 INFO L112 eAbstractionObserver]: Analyzing ICFG safe008_tso.i [2023-11-19 07:41:20,313 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:41:20,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 07:41:20,313 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:41:20,385 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 07:41:20,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 107 transitions, 226 flow [2023-11-19 07:41:20,483 INFO L124 PetriNetUnfolderBase]: 3/104 cut-off events. [2023-11-19 07:41:20,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:41:20,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 104 events. 3/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2023-11-19 07:41:20,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 107 transitions, 226 flow [2023-11-19 07:41:20,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 99 transitions, 207 flow [2023-11-19 07:41:20,499 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:41:20,510 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 99 transitions, 207 flow [2023-11-19 07:41:20,513 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 99 transitions, 207 flow [2023-11-19 07:41:20,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 99 transitions, 207 flow [2023-11-19 07:41:20,542 INFO L124 PetriNetUnfolderBase]: 3/99 cut-off events. [2023-11-19 07:41:20,543 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:41:20,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 3/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2023-11-19 07:41:20,546 INFO L119 LiptonReduction]: Number of co-enabled transitions 2184 [2023-11-19 07:41:23,561 INFO L134 LiptonReduction]: Checked pairs total: 3261 [2023-11-19 07:41:23,562 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-11-19 07:41:23,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:41:23,601 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;@5a831a18, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:41:23,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-19 07:41:23,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:41:23,605 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 07:41:23,605 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:41:23,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:23,606 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:41:23,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:23,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:23,619 INFO L85 PathProgramCache]: Analyzing trace with hash 383, now seen corresponding path program 1 times [2023-11-19 07:41:23,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:23,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790663370] [2023-11-19 07:41:23,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:23,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:23,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:23,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:23,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790663370] [2023-11-19 07:41:23,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790663370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:23,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:23,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:41:23,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739686983] [2023-11-19 07:41:23,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:23,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:41:23,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:23,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:41:23,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:41:23,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 211 [2023-11-19 07:41:23,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2023-11-19 07:41:23,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:23,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 211 [2023-11-19 07:41:23,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:24,014 INFO L124 PetriNetUnfolderBase]: 368/578 cut-off events. [2023-11-19 07:41:24,014 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:41:24,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1182 conditions, 578 events. 368/578 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2393 event pairs, 368 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 1171. Up to 574 conditions per place. [2023-11-19 07:41:24,027 INFO L140 encePairwiseOnDemand]: 204/211 looper letters, 17 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-11-19 07:41:24,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 81 flow [2023-11-19 07:41:24,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:41:24,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:41:24,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 224 transitions. [2023-11-19 07:41:24,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5308056872037915 [2023-11-19 07:41:24,044 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 224 transitions. [2023-11-19 07:41:24,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 224 transitions. [2023-11-19 07:41:24,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:24,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 224 transitions. [2023-11-19 07:41:24,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 112.0) internal successors, (224), 2 states have internal predecessors, (224), 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) [2023-11-19 07:41:24,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2023-11-19 07:41:24,063 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2023-11-19 07:41:24,065 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 224 transitions. [2023-11-19 07:41:24,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 81 flow [2023-11-19 07:41:24,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:41:24,070 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2023-11-19 07:41:24,073 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2023-11-19 07:41:24,076 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2023-11-19 07:41:24,077 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2023-11-19 07:41:24,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 100.5) internal successors, (201), 2 states have internal predecessors, (201), 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) [2023-11-19 07:41:24,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:24,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:24,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:41:24,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:24,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:24,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1858127273, now seen corresponding path program 1 times [2023-11-19 07:41:24,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:24,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956574841] [2023-11-19 07:41:24,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:24,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:24,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:24,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956574841] [2023-11-19 07:41:24,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956574841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:24,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:24,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:24,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047397615] [2023-11-19 07:41:24,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:24,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:24,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:24,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:24,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:24,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 211 [2023-11-19 07:41:24,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2023-11-19 07:41:24,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:24,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 211 [2023-11-19 07:41:24,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:24,885 INFO L124 PetriNetUnfolderBase]: 589/985 cut-off events. [2023-11-19 07:41:24,885 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:41:24,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1938 conditions, 985 events. 589/985 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5260 event pairs, 199 based on Foata normal form. 0/934 useless extension candidates. Maximal degree in co-relation 1935. Up to 573 conditions per place. [2023-11-19 07:41:24,897 INFO L140 encePairwiseOnDemand]: 203/211 looper letters, 34 selfloop transitions, 12 changer transitions 0/48 dead transitions. [2023-11-19 07:41:24,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 48 transitions, 198 flow [2023-11-19 07:41:24,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:41:24,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 503 transitions. [2023-11-19 07:41:24,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4767772511848341 [2023-11-19 07:41:24,908 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 503 transitions. [2023-11-19 07:41:24,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 503 transitions. [2023-11-19 07:41:24,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:24,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 503 transitions. [2023-11-19 07:41:24,915 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.6) internal successors, (503), 5 states have internal predecessors, (503), 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) [2023-11-19 07:41:24,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2023-11-19 07:41:24,920 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2023-11-19 07:41:24,921 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 5 states and 503 transitions. [2023-11-19 07:41:24,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 48 transitions, 198 flow [2023-11-19 07:41:24,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 48 transitions, 198 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:24,924 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 128 flow [2023-11-19 07:41:24,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=128, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2023-11-19 07:41:24,925 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2023-11-19 07:41:24,925 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 128 flow [2023-11-19 07:41:24,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.25) internal successors, (373), 4 states have internal predecessors, (373), 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) [2023-11-19 07:41:24,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:24,926 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:24,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:41:24,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:24,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:24,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1767369605, now seen corresponding path program 1 times [2023-11-19 07:41:24,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:24,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475937848] [2023-11-19 07:41:24,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:24,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:24,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:25,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:25,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:25,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475937848] [2023-11-19 07:41:25,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475937848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:25,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:25,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:25,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111645212] [2023-11-19 07:41:25,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:25,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:41:25,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:25,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:41:25,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:41:25,717 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 211 [2023-11-19 07:41:25,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 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) [2023-11-19 07:41:25,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:25,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 211 [2023-11-19 07:41:25,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:25,909 INFO L124 PetriNetUnfolderBase]: 435/756 cut-off events. [2023-11-19 07:41:25,909 INFO L125 PetriNetUnfolderBase]: For 440/440 co-relation queries the response was YES. [2023-11-19 07:41:25,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2161 conditions, 756 events. 435/756 cut-off events. For 440/440 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 3980 event pairs, 81 based on Foata normal form. 52/808 useless extension candidates. Maximal degree in co-relation 2154. Up to 582 conditions per place. [2023-11-19 07:41:25,918 INFO L140 encePairwiseOnDemand]: 206/211 looper letters, 31 selfloop transitions, 5 changer transitions 8/46 dead transitions. [2023-11-19 07:41:25,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 46 transitions, 288 flow [2023-11-19 07:41:25,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:25,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 535 transitions. [2023-11-19 07:41:25,921 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4225908372827804 [2023-11-19 07:41:25,922 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 535 transitions. [2023-11-19 07:41:25,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 535 transitions. [2023-11-19 07:41:25,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:25,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 535 transitions. [2023-11-19 07:41:25,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.16666666666667) internal successors, (535), 6 states have internal predecessors, (535), 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) [2023-11-19 07:41:25,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2023-11-19 07:41:25,931 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2023-11-19 07:41:25,931 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 128 flow. Second operand 6 states and 535 transitions. [2023-11-19 07:41:25,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 46 transitions, 288 flow [2023-11-19 07:41:25,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 46 transitions, 288 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:41:25,939 INFO L231 Difference]: Finished difference. Result has 38 places, 21 transitions, 91 flow [2023-11-19 07:41:25,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=91, PETRI_PLACES=38, PETRI_TRANSITIONS=21} [2023-11-19 07:41:25,941 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-11-19 07:41:25,942 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 21 transitions, 91 flow [2023-11-19 07:41:25,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.66666666666667) internal successors, (514), 6 states have internal predecessors, (514), 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) [2023-11-19 07:41:25,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:25,943 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:25,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:41:25,948 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:25,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:25,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2065122937, now seen corresponding path program 1 times [2023-11-19 07:41:25,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:25,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240937441] [2023-11-19 07:41:25,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:25,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:26,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:26,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:26,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240937441] [2023-11-19 07:41:26,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240937441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:26,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:26,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:26,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898496145] [2023-11-19 07:41:26,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:26,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:26,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:26,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:26,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:26,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 211 [2023-11-19 07:41:26,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 21 transitions, 91 flow. Second operand has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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) [2023-11-19 07:41:26,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:26,166 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 211 [2023-11-19 07:41:26,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:26,319 INFO L124 PetriNetUnfolderBase]: 358/650 cut-off events. [2023-11-19 07:41:26,319 INFO L125 PetriNetUnfolderBase]: For 524/524 co-relation queries the response was YES. [2023-11-19 07:41:26,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1818 conditions, 650 events. 358/650 cut-off events. For 524/524 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3459 event pairs, 105 based on Foata normal form. 49/698 useless extension candidates. Maximal degree in co-relation 1810. Up to 425 conditions per place. [2023-11-19 07:41:26,325 INFO L140 encePairwiseOnDemand]: 207/211 looper letters, 25 selfloop transitions, 3 changer transitions 16/46 dead transitions. [2023-11-19 07:41:26,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 46 transitions, 290 flow [2023-11-19 07:41:26,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:41:26,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 519 transitions. [2023-11-19 07:41:26,360 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4919431279620853 [2023-11-19 07:41:26,361 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 519 transitions. [2023-11-19 07:41:26,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 519 transitions. [2023-11-19 07:41:26,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:26,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 519 transitions. [2023-11-19 07:41:26,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 103.8) internal successors, (519), 5 states have internal predecessors, (519), 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) [2023-11-19 07:41:26,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2023-11-19 07:41:26,368 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2023-11-19 07:41:26,368 INFO L175 Difference]: Start difference. First operand has 38 places, 21 transitions, 91 flow. Second operand 5 states and 519 transitions. [2023-11-19 07:41:26,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 46 transitions, 290 flow [2023-11-19 07:41:26,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 46 transitions, 263 flow, removed 1 selfloop flow, removed 6 redundant places. [2023-11-19 07:41:26,376 INFO L231 Difference]: Finished difference. Result has 37 places, 21 transitions, 91 flow [2023-11-19 07:41:26,376 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=91, PETRI_PLACES=37, PETRI_TRANSITIONS=21} [2023-11-19 07:41:26,378 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 2 predicate places. [2023-11-19 07:41:26,378 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 21 transitions, 91 flow [2023-11-19 07:41:26,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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) [2023-11-19 07:41:26,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:26,379 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:26,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:41:26,380 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:26,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:26,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1767329591, now seen corresponding path program 1 times [2023-11-19 07:41:26,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:26,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99120621] [2023-11-19 07:41:26,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:26,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:26,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:26,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99120621] [2023-11-19 07:41:26,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99120621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:26,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:26,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:26,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971150500] [2023-11-19 07:41:26,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:26,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:26,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:26,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:26,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:26,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 211 [2023-11-19 07:41:26,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 21 transitions, 91 flow. Second operand has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 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) [2023-11-19 07:41:26,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:26,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 211 [2023-11-19 07:41:26,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:26,762 INFO L124 PetriNetUnfolderBase]: 301/558 cut-off events. [2023-11-19 07:41:26,763 INFO L125 PetriNetUnfolderBase]: For 544/544 co-relation queries the response was YES. [2023-11-19 07:41:26,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1597 conditions, 558 events. 301/558 cut-off events. For 544/544 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2861 event pairs, 85 based on Foata normal form. 32/589 useless extension candidates. Maximal degree in co-relation 1588. Up to 305 conditions per place. [2023-11-19 07:41:26,768 INFO L140 encePairwiseOnDemand]: 205/211 looper letters, 29 selfloop transitions, 7 changer transitions 14/52 dead transitions. [2023-11-19 07:41:26,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 312 flow [2023-11-19 07:41:26,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:41:26,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:41:26,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 687 transitions. [2023-11-19 07:41:26,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4651320243737305 [2023-11-19 07:41:26,773 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 687 transitions. [2023-11-19 07:41:26,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 687 transitions. [2023-11-19 07:41:26,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:26,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 687 transitions. [2023-11-19 07:41:26,777 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 98.14285714285714) internal successors, (687), 7 states have internal predecessors, (687), 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) [2023-11-19 07:41:26,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 211.0) internal successors, (1688), 8 states have internal predecessors, (1688), 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) [2023-11-19 07:41:26,784 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 211.0) internal successors, (1688), 8 states have internal predecessors, (1688), 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) [2023-11-19 07:41:26,785 INFO L175 Difference]: Start difference. First operand has 37 places, 21 transitions, 91 flow. Second operand 7 states and 687 transitions. [2023-11-19 07:41:26,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 312 flow [2023-11-19 07:41:26,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 52 transitions, 294 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-19 07:41:26,790 INFO L231 Difference]: Finished difference. Result has 42 places, 25 transitions, 136 flow [2023-11-19 07:41:26,790 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=136, PETRI_PLACES=42, PETRI_TRANSITIONS=25} [2023-11-19 07:41:26,793 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2023-11-19 07:41:26,793 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 136 flow [2023-11-19 07:41:26,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.0) internal successors, (465), 5 states have internal predecessors, (465), 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) [2023-11-19 07:41:26,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:26,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:26,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:41:26,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:26,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:26,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1047636879, now seen corresponding path program 1 times [2023-11-19 07:41:26,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:26,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427149061] [2023-11-19 07:41:26,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:26,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:26,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:26,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427149061] [2023-11-19 07:41:26,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427149061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:26,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:26,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:26,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773593484] [2023-11-19 07:41:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:26,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:26,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:26,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:26,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:26,971 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 211 [2023-11-19 07:41:26,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 25 transitions, 136 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) [2023-11-19 07:41:26,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:26,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 211 [2023-11-19 07:41:26,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:27,198 INFO L124 PetriNetUnfolderBase]: 459/808 cut-off events. [2023-11-19 07:41:27,198 INFO L125 PetriNetUnfolderBase]: For 1211/1211 co-relation queries the response was YES. [2023-11-19 07:41:27,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2432 conditions, 808 events. 459/808 cut-off events. For 1211/1211 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4279 event pairs, 109 based on Foata normal form. 40/846 useless extension candidates. Maximal degree in co-relation 2420. Up to 269 conditions per place. [2023-11-19 07:41:27,204 INFO L140 encePairwiseOnDemand]: 206/211 looper letters, 33 selfloop transitions, 4 changer transitions 19/57 dead transitions. [2023-11-19 07:41:27,204 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 57 transitions, 389 flow [2023-11-19 07:41:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:27,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:27,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 614 transitions. [2023-11-19 07:41:27,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4849921011058452 [2023-11-19 07:41:27,208 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 614 transitions. [2023-11-19 07:41:27,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 614 transitions. [2023-11-19 07:41:27,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:27,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 614 transitions. [2023-11-19 07:41:27,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 102.33333333333333) internal successors, (614), 6 states have internal predecessors, (614), 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) [2023-11-19 07:41:27,215 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2023-11-19 07:41:27,215 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2023-11-19 07:41:27,215 INFO L175 Difference]: Start difference. First operand has 42 places, 25 transitions, 136 flow. Second operand 6 states and 614 transitions. [2023-11-19 07:41:27,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 57 transitions, 389 flow [2023-11-19 07:41:27,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 57 transitions, 379 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-11-19 07:41:27,223 INFO L231 Difference]: Finished difference. Result has 45 places, 23 transitions, 134 flow [2023-11-19 07:41:27,223 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=134, PETRI_PLACES=45, PETRI_TRANSITIONS=23} [2023-11-19 07:41:27,225 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2023-11-19 07:41:27,226 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 23 transitions, 134 flow [2023-11-19 07:41:27,226 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) [2023-11-19 07:41:27,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:27,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:27,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:41:27,227 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:27,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1855825035, now seen corresponding path program 1 times [2023-11-19 07:41:27,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:27,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248607243] [2023-11-19 07:41:27,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:27,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:27,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248607243] [2023-11-19 07:41:27,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248607243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:27,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:27,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:27,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932793383] [2023-11-19 07:41:27,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:27,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:27,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:27,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:27,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:27,384 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 211 [2023-11-19 07:41:27,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 23 transitions, 134 flow. Second operand has 5 states, 5 states have (on average 93.2) internal successors, (466), 5 states have internal predecessors, (466), 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) [2023-11-19 07:41:27,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:27,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 211 [2023-11-19 07:41:27,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:27,525 INFO L124 PetriNetUnfolderBase]: 199/374 cut-off events. [2023-11-19 07:41:27,525 INFO L125 PetriNetUnfolderBase]: For 553/554 co-relation queries the response was YES. [2023-11-19 07:41:27,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 374 events. 199/374 cut-off events. For 553/554 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1682 event pairs, 38 based on Foata normal form. 16/387 useless extension candidates. Maximal degree in co-relation 1199. Up to 158 conditions per place. [2023-11-19 07:41:27,529 INFO L140 encePairwiseOnDemand]: 204/211 looper letters, 23 selfloop transitions, 7 changer transitions 10/42 dead transitions. [2023-11-19 07:41:27,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 42 transitions, 286 flow [2023-11-19 07:41:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:41:27,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:41:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 678 transitions. [2023-11-19 07:41:27,533 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45903859174001355 [2023-11-19 07:41:27,533 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 678 transitions. [2023-11-19 07:41:27,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 678 transitions. [2023-11-19 07:41:27,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:27,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 678 transitions. [2023-11-19 07:41:27,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 96.85714285714286) internal successors, (678), 7 states have internal predecessors, (678), 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) [2023-11-19 07:41:27,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 211.0) internal successors, (1688), 8 states have internal predecessors, (1688), 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) [2023-11-19 07:41:27,541 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 211.0) internal successors, (1688), 8 states have internal predecessors, (1688), 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) [2023-11-19 07:41:27,541 INFO L175 Difference]: Start difference. First operand has 45 places, 23 transitions, 134 flow. Second operand 7 states and 678 transitions. [2023-11-19 07:41:27,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 42 transitions, 286 flow [2023-11-19 07:41:27,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 42 transitions, 243 flow, removed 11 selfloop flow, removed 8 redundant places. [2023-11-19 07:41:27,548 INFO L231 Difference]: Finished difference. Result has 45 places, 23 transitions, 129 flow [2023-11-19 07:41:27,548 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=129, PETRI_PLACES=45, PETRI_TRANSITIONS=23} [2023-11-19 07:41:27,551 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2023-11-19 07:41:27,551 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 23 transitions, 129 flow [2023-11-19 07:41:27,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.2) internal successors, (466), 5 states have internal predecessors, (466), 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) [2023-11-19 07:41:27,552 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:27,552 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:27,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:41:27,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:27,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,553 INFO L85 PathProgramCache]: Analyzing trace with hash 348514140, now seen corresponding path program 1 times [2023-11-19 07:41:27,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:27,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858890097] [2023-11-19 07:41:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:27,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:27,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:27,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858890097] [2023-11-19 07:41:27,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858890097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:27,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:27,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:27,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870254549] [2023-11-19 07:41:27,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:27,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:27,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:27,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:27,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:27,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 211 [2023-11-19 07:41:27,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 23 transitions, 129 flow. Second operand has 5 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 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) [2023-11-19 07:41:27,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:27,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 211 [2023-11-19 07:41:27,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:27,856 INFO L124 PetriNetUnfolderBase]: 274/485 cut-off events. [2023-11-19 07:41:27,856 INFO L125 PetriNetUnfolderBase]: For 786/787 co-relation queries the response was YES. [2023-11-19 07:41:27,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1453 conditions, 485 events. 274/485 cut-off events. For 786/787 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1977 event pairs, 79 based on Foata normal form. 30/514 useless extension candidates. Maximal degree in co-relation 1441. Up to 154 conditions per place. [2023-11-19 07:41:27,859 INFO L140 encePairwiseOnDemand]: 206/211 looper letters, 21 selfloop transitions, 3 changer transitions 20/45 dead transitions. [2023-11-19 07:41:27,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 45 transitions, 307 flow [2023-11-19 07:41:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:41:27,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:41:27,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 605 transitions. [2023-11-19 07:41:27,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47788309636650866 [2023-11-19 07:41:27,864 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 605 transitions. [2023-11-19 07:41:27,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 605 transitions. [2023-11-19 07:41:27,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:27,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 605 transitions. [2023-11-19 07:41:27,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 100.83333333333333) internal successors, (605), 6 states have internal predecessors, (605), 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) [2023-11-19 07:41:27,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2023-11-19 07:41:27,872 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2023-11-19 07:41:27,872 INFO L175 Difference]: Start difference. First operand has 45 places, 23 transitions, 129 flow. Second operand 6 states and 605 transitions. [2023-11-19 07:41:27,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 45 transitions, 307 flow [2023-11-19 07:41:27,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 275 flow, removed 4 selfloop flow, removed 6 redundant places. [2023-11-19 07:41:27,877 INFO L231 Difference]: Finished difference. Result has 45 places, 18 transitions, 93 flow [2023-11-19 07:41:27,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=93, PETRI_PLACES=45, PETRI_TRANSITIONS=18} [2023-11-19 07:41:27,879 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 10 predicate places. [2023-11-19 07:41:27,880 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 18 transitions, 93 flow [2023-11-19 07:41:27,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.4) internal successors, (482), 5 states have internal predecessors, (482), 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) [2023-11-19 07:41:27,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:27,880 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:27,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:41:27,881 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:27,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:27,881 INFO L85 PathProgramCache]: Analyzing trace with hash -2082785305, now seen corresponding path program 1 times [2023-11-19 07:41:27,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:27,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544409687] [2023-11-19 07:41:27,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:27,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:28,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:28,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:28,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544409687] [2023-11-19 07:41:28,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544409687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:28,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:28,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:41:28,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185077203] [2023-11-19 07:41:28,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:28,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:41:28,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:28,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:41:28,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:41:28,059 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 211 [2023-11-19 07:41:28,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 18 transitions, 93 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) [2023-11-19 07:41:28,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:28,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 211 [2023-11-19 07:41:28,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:28,117 INFO L124 PetriNetUnfolderBase]: 72/148 cut-off events. [2023-11-19 07:41:28,117 INFO L125 PetriNetUnfolderBase]: For 185/188 co-relation queries the response was YES. [2023-11-19 07:41:28,118 INFO L83 FinitePrefix]: Finished finitePrefix Result has 468 conditions, 148 events. 72/148 cut-off events. For 185/188 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 436 event pairs, 26 based on Foata normal form. 6/152 useless extension candidates. Maximal degree in co-relation 455. Up to 123 conditions per place. [2023-11-19 07:41:28,119 INFO L140 encePairwiseOnDemand]: 206/211 looper letters, 21 selfloop transitions, 3 changer transitions 2/28 dead transitions. [2023-11-19 07:41:28,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 28 transitions, 188 flow [2023-11-19 07:41:28,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:41:28,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:41:28,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2023-11-19 07:41:28,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4976303317535545 [2023-11-19 07:41:28,122 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 315 transitions. [2023-11-19 07:41:28,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 315 transitions. [2023-11-19 07:41:28,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:28,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 315 transitions. [2023-11-19 07:41:28,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2023-11-19 07:41:28,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2023-11-19 07:41:28,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2023-11-19 07:41:28,126 INFO L175 Difference]: Start difference. First operand has 45 places, 18 transitions, 93 flow. Second operand 3 states and 315 transitions. [2023-11-19 07:41:28,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 28 transitions, 188 flow [2023-11-19 07:41:28,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 28 transitions, 139 flow, removed 13 selfloop flow, removed 11 redundant places. [2023-11-19 07:41:28,128 INFO L231 Difference]: Finished difference. Result has 35 places, 20 transitions, 78 flow [2023-11-19 07:41:28,128 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=35, PETRI_TRANSITIONS=20} [2023-11-19 07:41:28,129 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2023-11-19 07:41:28,129 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 20 transitions, 78 flow [2023-11-19 07:41:28,131 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) [2023-11-19 07:41:28,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:28,131 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:28,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:41:28,131 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:28,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:28,132 INFO L85 PathProgramCache]: Analyzing trace with hash -570163839, now seen corresponding path program 1 times [2023-11-19 07:41:28,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:28,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653299020] [2023-11-19 07:41:28,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:28,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:28,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:28,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653299020] [2023-11-19 07:41:28,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653299020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:28,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:28,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:41:28,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835353621] [2023-11-19 07:41:28,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:28,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:41:28,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:28,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:41:28,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:41:28,287 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 211 [2023-11-19 07:41:28,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 20 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2023-11-19 07:41:28,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:28,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 211 [2023-11-19 07:41:28,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:28,341 INFO L124 PetriNetUnfolderBase]: 39/94 cut-off events. [2023-11-19 07:41:28,342 INFO L125 PetriNetUnfolderBase]: For 35/43 co-relation queries the response was YES. [2023-11-19 07:41:28,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 94 events. 39/94 cut-off events. For 35/43 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 238 event pairs, 9 based on Foata normal form. 12/104 useless extension candidates. Maximal degree in co-relation 291. Up to 42 conditions per place. [2023-11-19 07:41:28,343 INFO L140 encePairwiseOnDemand]: 206/211 looper letters, 22 selfloop transitions, 5 changer transitions 5/34 dead transitions. [2023-11-19 07:41:28,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 193 flow [2023-11-19 07:41:28,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:41:28,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 07:41:28,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 417 transitions. [2023-11-19 07:41:28,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4940758293838863 [2023-11-19 07:41:28,346 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 417 transitions. [2023-11-19 07:41:28,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 417 transitions. [2023-11-19 07:41:28,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:28,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 417 transitions. [2023-11-19 07:41:28,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 104.25) internal successors, (417), 4 states have internal predecessors, (417), 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) [2023-11-19 07:41:28,350 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 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) [2023-11-19 07:41:28,350 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 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) [2023-11-19 07:41:28,351 INFO L175 Difference]: Start difference. First operand has 35 places, 20 transitions, 78 flow. Second operand 4 states and 417 transitions. [2023-11-19 07:41:28,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 193 flow [2023-11-19 07:41:28,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 34 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:41:28,352 INFO L231 Difference]: Finished difference. Result has 38 places, 20 transitions, 93 flow [2023-11-19 07:41:28,353 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=38, PETRI_TRANSITIONS=20} [2023-11-19 07:41:28,353 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 3 predicate places. [2023-11-19 07:41:28,354 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 93 flow [2023-11-19 07:41:28,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 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) [2023-11-19 07:41:28,354 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:41:28,354 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:28,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:41:28,354 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2023-11-19 07:41:28,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:41:28,355 INFO L85 PathProgramCache]: Analyzing trace with hash -858917503, now seen corresponding path program 1 times [2023-11-19 07:41:28,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:41:28,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372811237] [2023-11-19 07:41:28,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:41:28,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:41:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:41:28,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:41:28,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:41:28,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372811237] [2023-11-19 07:41:28,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372811237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:41:28,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:41:28,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:41:28,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025896756] [2023-11-19 07:41:28,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:41:28,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:41:28,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:41:28,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:41:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:41:28,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 211 [2023-11-19 07:41:28,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 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) [2023-11-19 07:41:28,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:41:28,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 211 [2023-11-19 07:41:28,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:41:28,546 INFO L124 PetriNetUnfolderBase]: 30/72 cut-off events. [2023-11-19 07:41:28,546 INFO L125 PetriNetUnfolderBase]: For 109/117 co-relation queries the response was YES. [2023-11-19 07:41:28,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 257 conditions, 72 events. 30/72 cut-off events. For 109/117 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 177 event pairs, 6 based on Foata normal form. 8/78 useless extension candidates. Maximal degree in co-relation 249. Up to 30 conditions per place. [2023-11-19 07:41:28,546 INFO L140 encePairwiseOnDemand]: 206/211 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2023-11-19 07:41:28,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 29 transitions, 178 flow [2023-11-19 07:41:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:41:28,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 07:41:28,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 508 transitions. [2023-11-19 07:41:28,549 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4815165876777251 [2023-11-19 07:41:28,550 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 508 transitions. [2023-11-19 07:41:28,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 508 transitions. [2023-11-19 07:41:28,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:41:28,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 508 transitions. [2023-11-19 07:41:28,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 101.6) internal successors, (508), 5 states have internal predecessors, (508), 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) [2023-11-19 07:41:28,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2023-11-19 07:41:28,555 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2023-11-19 07:41:28,555 INFO L175 Difference]: Start difference. First operand has 38 places, 20 transitions, 93 flow. Second operand 5 states and 508 transitions. [2023-11-19 07:41:28,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 29 transitions, 178 flow [2023-11-19 07:41:28,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 159 flow, removed 2 selfloop flow, removed 4 redundant places. [2023-11-19 07:41:28,556 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2023-11-19 07:41:28,557 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2023-11-19 07:41:28,557 INFO L281 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2023-11-19 07:41:28,557 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2023-11-19 07:41:28,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 98.8) internal successors, (494), 5 states have internal predecessors, (494), 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) [2023-11-19 07:41:28,560 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2023-11-19 07:41:28,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2023-11-19 07:41:28,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2023-11-19 07:41:28,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2023-11-19 07:41:28,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2023-11-19 07:41:28,561 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2023-11-19 07:41:28,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2023-11-19 07:41:28,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2023-11-19 07:41:28,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2023-11-19 07:41:28,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2023-11-19 07:41:28,562 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2023-11-19 07:41:28,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:41:28,563 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:41:28,566 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:41:28,566 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:41:28,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:41:28 BasicIcfg [2023-11-19 07:41:28,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:41:28,571 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:41:28,571 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:41:28,571 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:41:28,571 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:41:20" (3/4) ... [2023-11-19 07:41:28,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:41:28,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-19 07:41:28,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-19 07:41:28,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-19 07:41:28,582 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 07:41:28,582 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:41:28,583 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 07:41:28,583 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:41:28,671 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:41:28,672 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:41:28,672 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:41:28,673 INFO L158 Benchmark]: Toolchain (without parser) took 9573.51ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 124.1MB in the beginning and 77.5MB in the end (delta: 46.6MB). Peak memory consumption was 125.9MB. Max. memory is 16.1GB. [2023-11-19 07:41:28,673 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:41:28,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 565.02ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 103.7MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:41:28,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.49ms. Allocated memory is still 169.9MB. Free memory was 103.7MB in the beginning and 101.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:41:28,674 INFO L158 Benchmark]: Boogie Preprocessor took 60.01ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 100.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:41:28,674 INFO L158 Benchmark]: RCFGBuilder took 475.81ms. Allocated memory is still 169.9MB. Free memory was 100.1MB in the beginning and 129.9MB in the end (delta: -29.7MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-19 07:41:28,675 INFO L158 Benchmark]: TraceAbstraction took 8283.91ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 128.9MB in the beginning and 81.7MB in the end (delta: 47.2MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. [2023-11-19 07:41:28,675 INFO L158 Benchmark]: Witness Printer took 101.55ms. Allocated memory is still 247.5MB. Free memory was 81.7MB in the beginning and 77.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:41:28,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 125.8MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 565.02ms. Allocated memory is still 169.9MB. Free memory was 124.1MB in the beginning and 103.7MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.49ms. Allocated memory is still 169.9MB. Free memory was 103.7MB in the beginning and 101.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.01ms. Allocated memory is still 169.9MB. Free memory was 101.7MB in the beginning and 100.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 475.81ms. Allocated memory is still 169.9MB. Free memory was 100.1MB in the beginning and 129.9MB in the end (delta: -29.7MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8283.91ms. Allocated memory was 169.9MB in the beginning and 247.5MB in the end (delta: 77.6MB). Free memory was 128.9MB in the beginning and 81.7MB in the end (delta: 47.2MB). Peak memory consumption was 124.7MB. Max. memory is 16.1GB. * Witness Printer took 101.55ms. Allocated memory is still 247.5MB. Free memory was 81.7MB in the beginning and 77.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 106 PlacesBefore, 35 PlacesAfterwards, 99 TransitionsBefore, 26 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 5 FixpointIterations, 28 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 104 TotalNumberOfCompositions, 3261 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2030, independent: 1959, independent conditional: 0, independent unconditional: 1959, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1185, independent: 1163, independent conditional: 0, independent unconditional: 1163, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2030, independent: 796, independent conditional: 0, independent unconditional: 796, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 1185, unknown conditional: 0, unknown unconditional: 1185] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 49, Positive conditional cache size: 0, Positive unconditional cache size: 49, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: -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: -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: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 776]: 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 7 procedures, 132 locations, 11 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: 8.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 452 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 325 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 76 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 971 IncrementalHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 37 mSDtfsCounter, 971 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=5, InterpolantAutomatonStates: 56, 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, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 614 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:41:28,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d71c6cb2-6fd3-422f-987c-cdf0b0bd3b10/bin/uautomizer-verify-uCwYo4JHxu/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