./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/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_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/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_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/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 2b11be791089901ed5596869d293da40c27b85c1e89c21a55cf2181db7595687 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:01,310 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:01,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 08:00:01,450 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:01,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:01,498 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:01,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:01,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:01,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:01,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:01,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:01,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:01,515 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:01,515 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:01,516 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:00:01,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:01,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:00:01,518 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:01,518 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 08:00:01,519 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 08:00:01,519 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 08:00:01,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:01,521 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 08:00:01,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:00:01,522 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:00:01,523 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:01,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:01,524 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:01,525 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:01,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:01,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:01,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:01,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:00:01,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:00:01,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:01,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:01,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:01,530 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:01,530 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_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b11be791089901ed5596869d293da40c27b85c1e89c21a55cf2181db7595687 [2023-11-19 08:00:01,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:02,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:02,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:02,041 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:02,042 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:02,043 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-wmm/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 08:00:05,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:05,900 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:05,901 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/sv-benchmarks/c/pthread-wmm/safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 08:00:05,935 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/data/9dfb29d32/a32ca4fb18294f858d36a25d13eb7241/FLAGf6d2355bb [2023-11-19 08:00:05,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/data/9dfb29d32/a32ca4fb18294f858d36a25d13eb7241 [2023-11-19 08:00:05,963 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:05,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:05,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:05,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:05,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:05,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:05" (1/1) ... [2023-11-19 08:00:05,984 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df414ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:05, skipping insertion in model container [2023-11-19 08:00:05,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:05" (1/1) ... [2023-11-19 08:00:06,046 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:06,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:06,648 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:06,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:06,896 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:06,896 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:00:06,906 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:06,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06 WrapperNode [2023-11-19 08:00:06,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:06,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:06,909 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:06,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:06,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:06,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,030 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 150 [2023-11-19 08:00:07,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:07,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:07,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:07,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:07,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,092 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:07,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:07,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:07,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:07,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (1/1) ... [2023-11-19 08:00:07,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:07,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:07,182 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:07,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1ee374-0fda-4ac8-8ea4-9f6f9573aa9e/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:00:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 08:00:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:00:07,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:00:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 08:00:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 08:00:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 08:00:07,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 08:00:07,239 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 08:00:07,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 08:00:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 08:00:07,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:07,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:07,245 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 08:00:07,560 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:07,563 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:08,163 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:08,492 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:08,492 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:00:08,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:08 BoogieIcfgContainer [2023-11-19 08:00:08,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:08,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:08,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:08,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:08,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:05" (1/3) ... [2023-11-19 08:00:08,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c593300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:08, skipping insertion in model container [2023-11-19 08:00:08,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:06" (2/3) ... [2023-11-19 08:00:08,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c593300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:08, skipping insertion in model container [2023-11-19 08:00:08,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:08" (3/3) ... [2023-11-19 08:00:08,507 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_power.oepc_power.opt_pso.oepc_pso.opt_rmo.oepc_rmo.opt.i [2023-11-19 08:00:08,532 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:08,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-19 08:00:08,532 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:00:08,643 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 08:00:08,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 129 transitions, 270 flow [2023-11-19 08:00:08,854 INFO L124 PetriNetUnfolderBase]: 5/126 cut-off events. [2023-11-19 08:00:08,859 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:08,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 5/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 88. Up to 3 conditions per place. [2023-11-19 08:00:08,878 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 129 transitions, 270 flow [2023-11-19 08:00:08,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 126 transitions, 261 flow [2023-11-19 08:00:08,891 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:00:08,909 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 126 transitions, 261 flow [2023-11-19 08:00:08,912 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 126 transitions, 261 flow [2023-11-19 08:00:08,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 126 transitions, 261 flow [2023-11-19 08:00:08,977 INFO L124 PetriNetUnfolderBase]: 5/126 cut-off events. [2023-11-19 08:00:08,977 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:08,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 126 events. 5/126 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 88. Up to 3 conditions per place. [2023-11-19 08:00:08,983 INFO L119 LiptonReduction]: Number of co-enabled transitions 2930 [2023-11-19 08:00:14,542 INFO L134 LiptonReduction]: Checked pairs total: 7179 [2023-11-19 08:00:14,542 INFO L136 LiptonReduction]: Total number of compositions: 134 [2023-11-19 08:00:14,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:14,566 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;@443fbbf4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:14,567 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-19 08:00:14,569 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:00:14,569 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 08:00:14,569 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:14,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:14,570 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:00:14,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:14,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash 657, now seen corresponding path program 1 times [2023-11-19 08:00:14,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:14,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574184563] [2023-11-19 08:00:14,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:14,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:14,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:14,700 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 08:00:14,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:14,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574184563] [2023-11-19 08:00:14,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574184563] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:14,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:14,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:00:14,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106578539] [2023-11-19 08:00:14,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:14,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:00:14,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:14,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:00:14,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:14,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 263 [2023-11-19 08:00:14,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 75 flow. Second operand has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 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 08:00:14,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:14,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 263 [2023-11-19 08:00:14,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:15,667 INFO L124 PetriNetUnfolderBase]: 2514/3645 cut-off events. [2023-11-19 08:00:15,668 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-11-19 08:00:15,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7361 conditions, 3645 events. 2514/3645 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 16934 event pairs, 2514 based on Foata normal form. 0/3117 useless extension candidates. Maximal degree in co-relation 7350. Up to 3638 conditions per place. [2023-11-19 08:00:15,709 INFO L140 encePairwiseOnDemand]: 256/263 looper letters, 25 selfloop transitions, 0 changer transitions 0/26 dead transitions. [2023-11-19 08:00:15,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 111 flow [2023-11-19 08:00:15,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:00:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:00:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 252 transitions. [2023-11-19 08:00:15,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4790874524714829 [2023-11-19 08:00:15,725 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 252 transitions. [2023-11-19 08:00:15,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 252 transitions. [2023-11-19 08:00:15,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:15,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 252 transitions. [2023-11-19 08:00:15,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 126.0) internal successors, (252), 2 states have internal predecessors, (252), 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 08:00:15,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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 08:00:15,739 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 263.0) internal successors, (789), 3 states have internal predecessors, (789), 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 08:00:15,741 INFO L175 Difference]: Start difference. First operand has 42 places, 33 transitions, 75 flow. Second operand 2 states and 252 transitions. [2023-11-19 08:00:15,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 111 flow [2023-11-19 08:00:15,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 26 transitions, 108 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 08:00:15,747 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 58 flow [2023-11-19 08:00:15,749 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=58, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2023-11-19 08:00:15,753 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -8 predicate places. [2023-11-19 08:00:15,753 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 58 flow [2023-11-19 08:00:15,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 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 08:00:15,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:15,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:00:15,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:00:15,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:15,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:15,756 INFO L85 PathProgramCache]: Analyzing trace with hash 622930361, now seen corresponding path program 1 times [2023-11-19 08:00:15,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:15,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772227426] [2023-11-19 08:00:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:15,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:16,154 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 08:00:16,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:16,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772227426] [2023-11-19 08:00:16,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772227426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:16,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:16,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:00:16,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428604461] [2023-11-19 08:00:16,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:16,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:16,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:16,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:16,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:16,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 263 [2023-11-19 08:00:16,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 08:00:16,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:16,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 263 [2023-11-19 08:00:16,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:16,907 INFO L124 PetriNetUnfolderBase]: 1969/3092 cut-off events. [2023-11-19 08:00:16,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:16,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6027 conditions, 3092 events. 1969/3092 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 16333 event pairs, 334 based on Foata normal form. 0/2852 useless extension candidates. Maximal degree in co-relation 6024. Up to 2302 conditions per place. [2023-11-19 08:00:16,935 INFO L140 encePairwiseOnDemand]: 260/263 looper letters, 37 selfloop transitions, 2 changer transitions 2/42 dead transitions. [2023-11-19 08:00:16,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 42 transitions, 174 flow [2023-11-19 08:00:16,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:16,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:16,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 369 transitions. [2023-11-19 08:00:16,944 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.467680608365019 [2023-11-19 08:00:16,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 369 transitions. [2023-11-19 08:00:16,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 369 transitions. [2023-11-19 08:00:16,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:16,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 369 transitions. [2023-11-19 08:00:16,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 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 08:00:16,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 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 08:00:16,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 263.0) internal successors, (1052), 4 states have internal predecessors, (1052), 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 08:00:16,957 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 58 flow. Second operand 3 states and 369 transitions. [2023-11-19 08:00:16,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 42 transitions, 174 flow [2023-11-19 08:00:16,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 42 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:16,963 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 58 flow [2023-11-19 08:00:16,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2023-11-19 08:00:16,964 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -7 predicate places. [2023-11-19 08:00:16,964 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 58 flow [2023-11-19 08:00:16,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 08:00:16,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:16,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:16,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:00:16,974 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:16,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:16,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1783739307, now seen corresponding path program 1 times [2023-11-19 08:00:16,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:16,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720433911] [2023-11-19 08:00:16,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:16,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:18,462 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 08:00:18,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:18,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720433911] [2023-11-19 08:00:18,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720433911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:18,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:18,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:18,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327361643] [2023-11-19 08:00:18,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:18,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:18,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:18,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:18,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:18,526 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 263 [2023-11-19 08:00:18,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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 08:00:18,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:18,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 263 [2023-11-19 08:00:18,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:19,173 INFO L124 PetriNetUnfolderBase]: 1663/2447 cut-off events. [2023-11-19 08:00:19,174 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2023-11-19 08:00:19,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5150 conditions, 2447 events. 1663/2447 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 11575 event pairs, 591 based on Foata normal form. 0/2384 useless extension candidates. Maximal degree in co-relation 5146. Up to 1317 conditions per place. [2023-11-19 08:00:19,193 INFO L140 encePairwiseOnDemand]: 258/263 looper letters, 52 selfloop transitions, 6 changer transitions 0/59 dead transitions. [2023-11-19 08:00:19,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 59 transitions, 254 flow [2023-11-19 08:00:19,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:00:19,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:00:19,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 560 transitions. [2023-11-19 08:00:19,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42585551330798477 [2023-11-19 08:00:19,196 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 560 transitions. [2023-11-19 08:00:19,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 560 transitions. [2023-11-19 08:00:19,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:19,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 560 transitions. [2023-11-19 08:00:19,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 112.0) internal successors, (560), 5 states have internal predecessors, (560), 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 08:00:19,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 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 08:00:19,204 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 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 08:00:19,204 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 58 flow. Second operand 5 states and 560 transitions. [2023-11-19 08:00:19,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 59 transitions, 254 flow [2023-11-19 08:00:19,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 59 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:19,207 INFO L231 Difference]: Finished difference. Result has 39 places, 28 transitions, 91 flow [2023-11-19 08:00:19,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=91, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2023-11-19 08:00:19,208 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2023-11-19 08:00:19,208 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 28 transitions, 91 flow [2023-11-19 08:00:19,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.0) internal successors, (510), 5 states have internal predecessors, (510), 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 08:00:19,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:19,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:19,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:00:19,210 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:19,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:19,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1783739278, now seen corresponding path program 1 times [2023-11-19 08:00:19,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:19,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673731748] [2023-11-19 08:00:19,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:19,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:19,769 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 08:00:19,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:19,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673731748] [2023-11-19 08:00:19,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673731748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:19,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:19,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:00:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397368726] [2023-11-19 08:00:19,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:19,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:19,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:19,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:19,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:19,951 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 263 [2023-11-19 08:00:19,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 28 transitions, 91 flow. Second operand has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 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 08:00:19,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:19,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 263 [2023-11-19 08:00:19,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:20,714 INFO L124 PetriNetUnfolderBase]: 2072/3108 cut-off events. [2023-11-19 08:00:20,714 INFO L125 PetriNetUnfolderBase]: For 629/629 co-relation queries the response was YES. [2023-11-19 08:00:20,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7027 conditions, 3108 events. 2072/3108 cut-off events. For 629/629 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 15339 event pairs, 832 based on Foata normal form. 180/3288 useless extension candidates. Maximal degree in co-relation 7020. Up to 1173 conditions per place. [2023-11-19 08:00:20,739 INFO L140 encePairwiseOnDemand]: 258/263 looper letters, 53 selfloop transitions, 6 changer transitions 2/62 dead transitions. [2023-11-19 08:00:20,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 62 transitions, 292 flow [2023-11-19 08:00:20,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:20,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 632 transitions. [2023-11-19 08:00:20,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4005069708491762 [2023-11-19 08:00:20,743 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 632 transitions. [2023-11-19 08:00:20,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 632 transitions. [2023-11-19 08:00:20,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:20,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 632 transitions. [2023-11-19 08:00:20,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 105.33333333333333) internal successors, (632), 6 states have internal predecessors, (632), 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 08:00:20,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 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 08:00:20,752 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 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 08:00:20,752 INFO L175 Difference]: Start difference. First operand has 39 places, 28 transitions, 91 flow. Second operand 6 states and 632 transitions. [2023-11-19 08:00:20,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 62 transitions, 292 flow [2023-11-19 08:00:20,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 62 transitions, 292 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:20,756 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 107 flow [2023-11-19 08:00:20,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=107, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2023-11-19 08:00:20,758 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2023-11-19 08:00:20,758 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 107 flow [2023-11-19 08:00:20,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 96.66666666666667) internal successors, (580), 6 states have internal predecessors, (580), 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 08:00:20,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:20,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:20,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:00:20,760 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:20,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:20,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1047489876, now seen corresponding path program 1 times [2023-11-19 08:00:20,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:20,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535123022] [2023-11-19 08:00:20,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:20,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:21,903 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 08:00:21,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:21,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535123022] [2023-11-19 08:00:21,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535123022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:21,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:21,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:21,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512946382] [2023-11-19 08:00:21,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:21,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:21,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:21,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:21,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:21,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 263 [2023-11-19 08:00:21,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 28 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 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 08:00:21,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:21,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 263 [2023-11-19 08:00:21,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:22,863 INFO L124 PetriNetUnfolderBase]: 2115/3222 cut-off events. [2023-11-19 08:00:22,863 INFO L125 PetriNetUnfolderBase]: For 1250/1250 co-relation queries the response was YES. [2023-11-19 08:00:22,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7386 conditions, 3222 events. 2115/3222 cut-off events. For 1250/1250 co-relation queries the response was YES. Maximal size of possible extension queue 164. Compared 16399 event pairs, 406 based on Foata normal form. 124/3346 useless extension candidates. Maximal degree in co-relation 7375. Up to 2708 conditions per place. [2023-11-19 08:00:22,889 INFO L140 encePairwiseOnDemand]: 252/263 looper letters, 55 selfloop transitions, 20 changer transitions 0/76 dead transitions. [2023-11-19 08:00:22,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 76 transitions, 407 flow [2023-11-19 08:00:22,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:00:22,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 08:00:22,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 770 transitions. [2023-11-19 08:00:22,894 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41825095057034223 [2023-11-19 08:00:22,894 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 770 transitions. [2023-11-19 08:00:22,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 770 transitions. [2023-11-19 08:00:22,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:22,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 770 transitions. [2023-11-19 08:00:22,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 110.0) internal successors, (770), 7 states have internal predecessors, (770), 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 08:00:22,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 263.0) internal successors, (2104), 8 states have internal predecessors, (2104), 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 08:00:22,903 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 263.0) internal successors, (2104), 8 states have internal predecessors, (2104), 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 08:00:22,904 INFO L175 Difference]: Start difference. First operand has 47 places, 28 transitions, 107 flow. Second operand 7 states and 770 transitions. [2023-11-19 08:00:22,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 76 transitions, 407 flow [2023-11-19 08:00:22,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 76 transitions, 374 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-11-19 08:00:22,929 INFO L231 Difference]: Finished difference. Result has 51 places, 48 transitions, 251 flow [2023-11-19 08:00:22,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=51, PETRI_TRANSITIONS=48} [2023-11-19 08:00:22,931 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2023-11-19 08:00:22,931 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 48 transitions, 251 flow [2023-11-19 08:00:22,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 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 08:00:22,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:22,932 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:22,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:00:22,932 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:22,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:22,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1732477647, now seen corresponding path program 1 times [2023-11-19 08:00:22,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:22,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828944163] [2023-11-19 08:00:22,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:22,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:24,169 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 08:00:24,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:24,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828944163] [2023-11-19 08:00:24,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828944163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:24,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:24,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 08:00:24,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913084631] [2023-11-19 08:00:24,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:24,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:00:24,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:24,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:00:24,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:00:24,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 263 [2023-11-19 08:00:24,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 48 transitions, 251 flow. Second operand has 8 states, 8 states have (on average 94.75) internal successors, (758), 8 states have internal predecessors, (758), 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 08:00:24,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:24,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 263 [2023-11-19 08:00:24,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:25,274 INFO L124 PetriNetUnfolderBase]: 1931/2960 cut-off events. [2023-11-19 08:00:25,274 INFO L125 PetriNetUnfolderBase]: For 3182/3182 co-relation queries the response was YES. [2023-11-19 08:00:25,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9002 conditions, 2960 events. 1931/2960 cut-off events. For 3182/3182 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 14970 event pairs, 787 based on Foata normal form. 119/3079 useless extension candidates. Maximal degree in co-relation 8989. Up to 2853 conditions per place. [2023-11-19 08:00:25,306 INFO L140 encePairwiseOnDemand]: 257/263 looper letters, 48 selfloop transitions, 10 changer transitions 8/67 dead transitions. [2023-11-19 08:00:25,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 67 transitions, 455 flow [2023-11-19 08:00:25,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:00:25,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 08:00:25,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 695 transitions. [2023-11-19 08:00:25,310 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3775122216186855 [2023-11-19 08:00:25,311 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 695 transitions. [2023-11-19 08:00:25,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 695 transitions. [2023-11-19 08:00:25,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:25,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 695 transitions. [2023-11-19 08:00:25,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 99.28571428571429) internal successors, (695), 7 states have internal predecessors, (695), 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 08:00:25,319 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 263.0) internal successors, (2104), 8 states have internal predecessors, (2104), 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 08:00:25,320 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 263.0) internal successors, (2104), 8 states have internal predecessors, (2104), 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 08:00:25,320 INFO L175 Difference]: Start difference. First operand has 51 places, 48 transitions, 251 flow. Second operand 7 states and 695 transitions. [2023-11-19 08:00:25,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 67 transitions, 455 flow [2023-11-19 08:00:25,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 67 transitions, 453 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:25,331 INFO L231 Difference]: Finished difference. Result has 57 places, 41 transitions, 225 flow [2023-11-19 08:00:25,332 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=225, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2023-11-19 08:00:25,333 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2023-11-19 08:00:25,333 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 225 flow [2023-11-19 08:00:25,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 94.75) internal successors, (758), 8 states have internal predecessors, (758), 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 08:00:25,334 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:25,334 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:25,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:00:25,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:25,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:25,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1070979546, now seen corresponding path program 1 times [2023-11-19 08:00:25,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:25,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287213656] [2023-11-19 08:00:25,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:25,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:26,490 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 08:00:26,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:26,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287213656] [2023-11-19 08:00:26,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287213656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:26,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:26,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:26,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123722363] [2023-11-19 08:00:26,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:26,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:26,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:26,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:26,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:26,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 263 [2023-11-19 08:00:26,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 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 08:00:26,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:26,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 263 [2023-11-19 08:00:26,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:27,250 INFO L124 PetriNetUnfolderBase]: 1803/2766 cut-off events. [2023-11-19 08:00:27,250 INFO L125 PetriNetUnfolderBase]: For 3366/3366 co-relation queries the response was YES. [2023-11-19 08:00:27,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8498 conditions, 2766 events. 1803/2766 cut-off events. For 3366/3366 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 13773 event pairs, 329 based on Foata normal form. 90/2850 useless extension candidates. Maximal degree in co-relation 8483. Up to 2012 conditions per place. [2023-11-19 08:00:27,270 INFO L140 encePairwiseOnDemand]: 259/263 looper letters, 45 selfloop transitions, 4 changer transitions 13/63 dead transitions. [2023-11-19 08:00:27,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 434 flow [2023-11-19 08:00:27,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:00:27,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:00:27,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 547 transitions. [2023-11-19 08:00:27,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4159695817490494 [2023-11-19 08:00:27,276 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 547 transitions. [2023-11-19 08:00:27,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 547 transitions. [2023-11-19 08:00:27,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:27,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 547 transitions. [2023-11-19 08:00:27,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 109.4) internal successors, (547), 5 states have internal predecessors, (547), 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 08:00:27,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 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 08:00:27,284 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 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 08:00:27,284 INFO L175 Difference]: Start difference. First operand has 57 places, 41 transitions, 225 flow. Second operand 5 states and 547 transitions. [2023-11-19 08:00:27,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 434 flow [2023-11-19 08:00:27,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 431 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:27,294 INFO L231 Difference]: Finished difference. Result has 59 places, 41 transitions, 240 flow [2023-11-19 08:00:27,295 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=240, PETRI_PLACES=59, PETRI_TRANSITIONS=41} [2023-11-19 08:00:27,296 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 17 predicate places. [2023-11-19 08:00:27,296 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 41 transitions, 240 flow [2023-11-19 08:00:27,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.8) internal successors, (514), 5 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 08:00:27,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:27,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:27,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:00:27,297 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:27,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:27,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1732483256, now seen corresponding path program 1 times [2023-11-19 08:00:27,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:27,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295512575] [2023-11-19 08:00:27,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:27,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:28,321 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 08:00:28,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:28,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295512575] [2023-11-19 08:00:28,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295512575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:28,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:28,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:28,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811708230] [2023-11-19 08:00:28,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:28,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:28,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:28,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:28,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:28,391 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 263 [2023-11-19 08:00:28,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 41 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 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 08:00:28,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:28,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 263 [2023-11-19 08:00:28,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:29,589 INFO L124 PetriNetUnfolderBase]: 2572/3864 cut-off events. [2023-11-19 08:00:29,589 INFO L125 PetriNetUnfolderBase]: For 5662/5662 co-relation queries the response was YES. [2023-11-19 08:00:29,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12142 conditions, 3864 events. 2572/3864 cut-off events. For 5662/5662 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 19226 event pairs, 386 based on Foata normal form. 136/4000 useless extension candidates. Maximal degree in co-relation 12125. Up to 2149 conditions per place. [2023-11-19 08:00:29,616 INFO L140 encePairwiseOnDemand]: 251/263 looper letters, 71 selfloop transitions, 20 changer transitions 25/116 dead transitions. [2023-11-19 08:00:29,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 116 transitions, 822 flow [2023-11-19 08:00:29,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:00:29,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 08:00:29,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 973 transitions. [2023-11-19 08:00:29,621 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41106886354034644 [2023-11-19 08:00:29,621 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 973 transitions. [2023-11-19 08:00:29,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 973 transitions. [2023-11-19 08:00:29,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:29,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 973 transitions. [2023-11-19 08:00:29,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 108.11111111111111) internal successors, (973), 9 states have internal predecessors, (973), 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 08:00:29,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 263.0) internal successors, (2630), 10 states have internal predecessors, (2630), 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 08:00:29,632 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 263.0) internal successors, (2630), 10 states have internal predecessors, (2630), 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 08:00:29,633 INFO L175 Difference]: Start difference. First operand has 59 places, 41 transitions, 240 flow. Second operand 9 states and 973 transitions. [2023-11-19 08:00:29,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 116 transitions, 822 flow [2023-11-19 08:00:29,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 116 transitions, 792 flow, removed 8 selfloop flow, removed 4 redundant places. [2023-11-19 08:00:29,653 INFO L231 Difference]: Finished difference. Result has 68 places, 59 transitions, 450 flow [2023-11-19 08:00:29,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=450, PETRI_PLACES=68, PETRI_TRANSITIONS=59} [2023-11-19 08:00:29,654 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 26 predicate places. [2023-11-19 08:00:29,654 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 59 transitions, 450 flow [2023-11-19 08:00:29,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 100.8) internal successors, (504), 5 states have internal predecessors, (504), 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 08:00:29,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:29,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:29,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:00:29,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:29,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:29,656 INFO L85 PathProgramCache]: Analyzing trace with hash 385673728, now seen corresponding path program 2 times [2023-11-19 08:00:29,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:29,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332628933] [2023-11-19 08:00:29,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:29,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:29,938 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 08:00:29,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:29,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332628933] [2023-11-19 08:00:29,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332628933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:29,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:29,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:29,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356701906] [2023-11-19 08:00:29,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:29,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:29,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:29,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:29,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:29,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 263 [2023-11-19 08:00:29,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 59 transitions, 450 flow. Second operand has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 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 08:00:29,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:29,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 263 [2023-11-19 08:00:29,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:30,967 INFO L124 PetriNetUnfolderBase]: 3019/4523 cut-off events. [2023-11-19 08:00:30,967 INFO L125 PetriNetUnfolderBase]: For 17225/17225 co-relation queries the response was YES. [2023-11-19 08:00:30,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19648 conditions, 4523 events. 3019/4523 cut-off events. For 17225/17225 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 22795 event pairs, 430 based on Foata normal form. 120/4643 useless extension candidates. Maximal degree in co-relation 19626. Up to 1740 conditions per place. [2023-11-19 08:00:30,998 INFO L140 encePairwiseOnDemand]: 258/263 looper letters, 64 selfloop transitions, 4 changer transitions 38/106 dead transitions. [2023-11-19 08:00:30,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 106 transitions, 962 flow [2023-11-19 08:00:30,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:30,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:31,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 690 transitions. [2023-11-19 08:00:31,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4372623574144487 [2023-11-19 08:00:31,002 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 690 transitions. [2023-11-19 08:00:31,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 690 transitions. [2023-11-19 08:00:31,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:31,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 690 transitions. [2023-11-19 08:00:31,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 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 08:00:31,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 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 08:00:31,010 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 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 08:00:31,011 INFO L175 Difference]: Start difference. First operand has 68 places, 59 transitions, 450 flow. Second operand 6 states and 690 transitions. [2023-11-19 08:00:31,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 106 transitions, 962 flow [2023-11-19 08:00:31,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 106 transitions, 919 flow, removed 17 selfloop flow, removed 3 redundant places. [2023-11-19 08:00:31,054 INFO L231 Difference]: Finished difference. Result has 70 places, 43 transitions, 324 flow [2023-11-19 08:00:31,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=70, PETRI_TRANSITIONS=43} [2023-11-19 08:00:31,055 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 28 predicate places. [2023-11-19 08:00:31,055 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 43 transitions, 324 flow [2023-11-19 08:00:31,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.8) internal successors, (534), 5 states have internal predecessors, (534), 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 08:00:31,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:31,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:31,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:00:31,056 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:31,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash -44424695, now seen corresponding path program 1 times [2023-11-19 08:00:31,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:31,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210038187] [2023-11-19 08:00:31,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:32,044 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 08:00:32,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:32,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210038187] [2023-11-19 08:00:32,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210038187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:32,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:32,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:00:32,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284167555] [2023-11-19 08:00:32,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:32,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:00:32,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:32,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:00:32,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:00:32,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 263 [2023-11-19 08:00:32,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 43 transitions, 324 flow. Second operand has 9 states, 9 states have (on average 104.66666666666667) internal successors, (942), 9 states have internal predecessors, (942), 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 08:00:32,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:32,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 263 [2023-11-19 08:00:32,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:32,982 INFO L124 PetriNetUnfolderBase]: 1521/2374 cut-off events. [2023-11-19 08:00:32,982 INFO L125 PetriNetUnfolderBase]: For 11510/11510 co-relation queries the response was YES. [2023-11-19 08:00:32,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10982 conditions, 2374 events. 1521/2374 cut-off events. For 11510/11510 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 11036 event pairs, 381 based on Foata normal form. 78/2452 useless extension candidates. Maximal degree in co-relation 10958. Up to 1867 conditions per place. [2023-11-19 08:00:33,005 INFO L140 encePairwiseOnDemand]: 253/263 looper letters, 66 selfloop transitions, 27 changer transitions 16/110 dead transitions. [2023-11-19 08:00:33,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 110 transitions, 1045 flow [2023-11-19 08:00:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 08:00:33,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-19 08:00:33,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1115 transitions. [2023-11-19 08:00:33,011 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42395437262357416 [2023-11-19 08:00:33,011 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1115 transitions. [2023-11-19 08:00:33,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1115 transitions. [2023-11-19 08:00:33,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:33,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1115 transitions. [2023-11-19 08:00:33,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 111.5) internal successors, (1115), 10 states have internal predecessors, (1115), 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 08:00:33,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 263.0) internal successors, (2893), 11 states have internal predecessors, (2893), 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 08:00:33,025 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 263.0) internal successors, (2893), 11 states have internal predecessors, (2893), 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 08:00:33,025 INFO L175 Difference]: Start difference. First operand has 70 places, 43 transitions, 324 flow. Second operand 10 states and 1115 transitions. [2023-11-19 08:00:33,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 110 transitions, 1045 flow [2023-11-19 08:00:33,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 110 transitions, 909 flow, removed 45 selfloop flow, removed 13 redundant places. [2023-11-19 08:00:33,050 INFO L231 Difference]: Finished difference. Result has 70 places, 59 transitions, 509 flow [2023-11-19 08:00:33,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=509, PETRI_PLACES=70, PETRI_TRANSITIONS=59} [2023-11-19 08:00:33,053 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 28 predicate places. [2023-11-19 08:00:33,053 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 59 transitions, 509 flow [2023-11-19 08:00:33,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.66666666666667) internal successors, (942), 9 states have internal predecessors, (942), 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 08:00:33,054 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:33,054 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:33,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:00:33,055 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:33,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:33,055 INFO L85 PathProgramCache]: Analyzing trace with hash 970814559, now seen corresponding path program 2 times [2023-11-19 08:00:33,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:33,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333579580] [2023-11-19 08:00:33,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:33,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:34,028 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 08:00:34,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333579580] [2023-11-19 08:00:34,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333579580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:34,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:34,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:00:34,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734728066] [2023-11-19 08:00:34,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:34,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:00:34,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:34,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:00:34,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:00:34,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 263 [2023-11-19 08:00:34,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 59 transitions, 509 flow. Second operand has 9 states, 9 states have (on average 104.66666666666667) internal successors, (942), 9 states have internal predecessors, (942), 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 08:00:34,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:34,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 263 [2023-11-19 08:00:34,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:35,096 INFO L124 PetriNetUnfolderBase]: 1628/2534 cut-off events. [2023-11-19 08:00:35,096 INFO L125 PetriNetUnfolderBase]: For 13415/13415 co-relation queries the response was YES. [2023-11-19 08:00:35,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12045 conditions, 2534 events. 1628/2534 cut-off events. For 13415/13415 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 11958 event pairs, 434 based on Foata normal form. 72/2597 useless extension candidates. Maximal degree in co-relation 12023. Up to 1932 conditions per place. [2023-11-19 08:00:35,125 INFO L140 encePairwiseOnDemand]: 253/263 looper letters, 73 selfloop transitions, 33 changer transitions 12/119 dead transitions. [2023-11-19 08:00:35,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 119 transitions, 1175 flow [2023-11-19 08:00:35,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 08:00:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-19 08:00:35,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1010 transitions. [2023-11-19 08:00:35,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42670046472327844 [2023-11-19 08:00:35,132 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1010 transitions. [2023-11-19 08:00:35,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1010 transitions. [2023-11-19 08:00:35,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:35,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1010 transitions. [2023-11-19 08:00:35,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 112.22222222222223) internal successors, (1010), 9 states have internal predecessors, (1010), 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 08:00:35,143 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 263.0) internal successors, (2630), 10 states have internal predecessors, (2630), 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 08:00:35,145 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 263.0) internal successors, (2630), 10 states have internal predecessors, (2630), 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 08:00:35,145 INFO L175 Difference]: Start difference. First operand has 70 places, 59 transitions, 509 flow. Second operand 9 states and 1010 transitions. [2023-11-19 08:00:35,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 119 transitions, 1175 flow [2023-11-19 08:00:35,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 119 transitions, 1121 flow, removed 27 selfloop flow, removed 3 redundant places. [2023-11-19 08:00:35,174 INFO L231 Difference]: Finished difference. Result has 76 places, 66 transitions, 643 flow [2023-11-19 08:00:35,174 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=643, PETRI_PLACES=76, PETRI_TRANSITIONS=66} [2023-11-19 08:00:35,175 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 34 predicate places. [2023-11-19 08:00:35,175 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 66 transitions, 643 flow [2023-11-19 08:00:35,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.66666666666667) internal successors, (942), 9 states have internal predecessors, (942), 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 08:00:35,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:35,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:35,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 08:00:35,176 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:35,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,177 INFO L85 PathProgramCache]: Analyzing trace with hash 46836267, now seen corresponding path program 3 times [2023-11-19 08:00:35,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021638033] [2023-11-19 08:00:35,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:35,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:36,124 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 08:00:36,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:36,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021638033] [2023-11-19 08:00:36,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021638033] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:36,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:36,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:00:36,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475322671] [2023-11-19 08:00:36,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:36,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:00:36,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:36,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:00:36,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:00:36,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 263 [2023-11-19 08:00:36,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 66 transitions, 643 flow. Second operand has 9 states, 9 states have (on average 104.66666666666667) internal successors, (942), 9 states have internal predecessors, (942), 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 08:00:36,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:36,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 263 [2023-11-19 08:00:36,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:37,140 INFO L124 PetriNetUnfolderBase]: 2504/3892 cut-off events. [2023-11-19 08:00:37,140 INFO L125 PetriNetUnfolderBase]: For 21140/21141 co-relation queries the response was YES. [2023-11-19 08:00:37,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18840 conditions, 3892 events. 2504/3892 cut-off events. For 21140/21141 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 20284 event pairs, 692 based on Foata normal form. 150/4041 useless extension candidates. Maximal degree in co-relation 18816. Up to 1890 conditions per place. [2023-11-19 08:00:37,176 INFO L140 encePairwiseOnDemand]: 255/263 looper letters, 73 selfloop transitions, 29 changer transitions 23/126 dead transitions. [2023-11-19 08:00:37,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 126 transitions, 1331 flow [2023-11-19 08:00:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:00:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 08:00:37,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 902 transitions. [2023-11-19 08:00:37,181 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42870722433460073 [2023-11-19 08:00:37,181 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 902 transitions. [2023-11-19 08:00:37,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 902 transitions. [2023-11-19 08:00:37,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:37,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 902 transitions. [2023-11-19 08:00:37,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 112.75) internal successors, (902), 8 states have internal predecessors, (902), 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 08:00:37,190 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 263.0) internal successors, (2367), 9 states have internal predecessors, (2367), 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 08:00:37,191 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 263.0) internal successors, (2367), 9 states have internal predecessors, (2367), 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 08:00:37,191 INFO L175 Difference]: Start difference. First operand has 76 places, 66 transitions, 643 flow. Second operand 8 states and 902 transitions. [2023-11-19 08:00:37,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 126 transitions, 1331 flow [2023-11-19 08:00:37,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 126 transitions, 1267 flow, removed 18 selfloop flow, removed 4 redundant places. [2023-11-19 08:00:37,237 INFO L231 Difference]: Finished difference. Result has 83 places, 78 transitions, 842 flow [2023-11-19 08:00:37,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=842, PETRI_PLACES=83, PETRI_TRANSITIONS=78} [2023-11-19 08:00:37,239 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 41 predicate places. [2023-11-19 08:00:37,239 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 78 transitions, 842 flow [2023-11-19 08:00:37,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 104.66666666666667) internal successors, (942), 9 states have internal predecessors, (942), 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 08:00:37,240 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:37,240 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:37,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 08:00:37,240 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:37,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash -429752985, now seen corresponding path program 1 times [2023-11-19 08:00:37,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:37,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830497870] [2023-11-19 08:00:37,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:37,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:37,481 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 08:00:37,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:37,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830497870] [2023-11-19 08:00:37,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830497870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:37,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:37,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:37,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988904026] [2023-11-19 08:00:37,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:37,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:00:37,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:37,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:00:37,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:00:37,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 263 [2023-11-19 08:00:37,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 78 transitions, 842 flow. Second operand has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 08:00:37,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:37,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 263 [2023-11-19 08:00:37,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:38,208 INFO L124 PetriNetUnfolderBase]: 1854/3072 cut-off events. [2023-11-19 08:00:38,208 INFO L125 PetriNetUnfolderBase]: For 25376/25383 co-relation queries the response was YES. [2023-11-19 08:00:38,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15548 conditions, 3072 events. 1854/3072 cut-off events. For 25376/25383 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 17342 event pairs, 221 based on Foata normal form. 306/3375 useless extension candidates. Maximal degree in co-relation 15520. Up to 1769 conditions per place. [2023-11-19 08:00:38,235 INFO L140 encePairwiseOnDemand]: 257/263 looper letters, 103 selfloop transitions, 4 changer transitions 76/184 dead transitions. [2023-11-19 08:00:38,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 184 transitions, 2393 flow [2023-11-19 08:00:38,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:00:38,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-19 08:00:38,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 585 transitions. [2023-11-19 08:00:38,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4448669201520912 [2023-11-19 08:00:38,239 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 585 transitions. [2023-11-19 08:00:38,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 585 transitions. [2023-11-19 08:00:38,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:38,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 585 transitions. [2023-11-19 08:00:38,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 117.0) internal successors, (585), 5 states have internal predecessors, (585), 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 08:00:38,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 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 08:00:38,246 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 263.0) internal successors, (1578), 6 states have internal predecessors, (1578), 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 08:00:38,246 INFO L175 Difference]: Start difference. First operand has 83 places, 78 transitions, 842 flow. Second operand 5 states and 585 transitions. [2023-11-19 08:00:38,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 184 transitions, 2393 flow [2023-11-19 08:00:38,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 184 transitions, 2262 flow, removed 57 selfloop flow, removed 6 redundant places. [2023-11-19 08:00:38,283 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 785 flow [2023-11-19 08:00:38,283 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=745, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=785, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2023-11-19 08:00:38,284 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 39 predicate places. [2023-11-19 08:00:38,284 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 785 flow [2023-11-19 08:00:38,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 08:00:38,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:38,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:38,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 08:00:38,285 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:38,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:38,286 INFO L85 PathProgramCache]: Analyzing trace with hash 2095619536, now seen corresponding path program 1 times [2023-11-19 08:00:38,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:38,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703922878] [2023-11-19 08:00:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:38,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:38,521 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 08:00:38,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:38,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703922878] [2023-11-19 08:00:38,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703922878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:38,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:38,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 08:00:38,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846533266] [2023-11-19 08:00:38,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:38,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 08:00:38,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:38,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 08:00:38,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 08:00:38,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 263 [2023-11-19 08:00:38,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 785 flow. Second operand has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 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 08:00:38,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:38,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 263 [2023-11-19 08:00:38,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:39,089 INFO L124 PetriNetUnfolderBase]: 960/1725 cut-off events. [2023-11-19 08:00:39,090 INFO L125 PetriNetUnfolderBase]: For 14042/14049 co-relation queries the response was YES. [2023-11-19 08:00:39,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9491 conditions, 1725 events. 960/1725 cut-off events. For 14042/14049 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9350 event pairs, 91 based on Foata normal form. 173/1895 useless extension candidates. Maximal degree in co-relation 9464. Up to 597 conditions per place. [2023-11-19 08:00:39,106 INFO L140 encePairwiseOnDemand]: 257/263 looper letters, 115 selfloop transitions, 7 changer transitions 48/171 dead transitions. [2023-11-19 08:00:39,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 171 transitions, 2119 flow [2023-11-19 08:00:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 08:00:39,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 08:00:39,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 701 transitions. [2023-11-19 08:00:39,110 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44423320659062104 [2023-11-19 08:00:39,110 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 701 transitions. [2023-11-19 08:00:39,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 701 transitions. [2023-11-19 08:00:39,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:39,112 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 701 transitions. [2023-11-19 08:00:39,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 116.83333333333333) internal successors, (701), 6 states have internal predecessors, (701), 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 08:00:39,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 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 08:00:39,118 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 263.0) internal successors, (1841), 7 states have internal predecessors, (1841), 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 08:00:39,119 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 785 flow. Second operand 6 states and 701 transitions. [2023-11-19 08:00:39,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 171 transitions, 2119 flow [2023-11-19 08:00:39,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 171 transitions, 2077 flow, removed 19 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:39,148 INFO L231 Difference]: Finished difference. Result has 85 places, 79 transitions, 802 flow [2023-11-19 08:00:39,148 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=746, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=802, PETRI_PLACES=85, PETRI_TRANSITIONS=79} [2023-11-19 08:00:39,149 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 43 predicate places. [2023-11-19 08:00:39,149 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 79 transitions, 802 flow [2023-11-19 08:00:39,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 107.4) internal successors, (537), 5 states have internal predecessors, (537), 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 08:00:39,150 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:39,150 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:39,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 08:00:39,150 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:39,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:39,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1303066307, now seen corresponding path program 1 times [2023-11-19 08:00:39,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:39,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457441728] [2023-11-19 08:00:39,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:39,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:39,441 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 08:00:39,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:39,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457441728] [2023-11-19 08:00:39,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457441728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:39,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:39,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:00:39,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431140510] [2023-11-19 08:00:39,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:39,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:00:39,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:39,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:00:39,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:00:39,467 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 263 [2023-11-19 08:00:39,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 79 transitions, 802 flow. Second operand has 6 states, 6 states have (on average 107.16666666666667) internal successors, (643), 6 states have internal predecessors, (643), 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 08:00:39,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:39,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 263 [2023-11-19 08:00:39,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:39,888 INFO L124 PetriNetUnfolderBase]: 637/1164 cut-off events. [2023-11-19 08:00:39,888 INFO L125 PetriNetUnfolderBase]: For 9591/9598 co-relation queries the response was YES. [2023-11-19 08:00:39,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6795 conditions, 1164 events. 637/1164 cut-off events. For 9591/9598 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 5908 event pairs, 79 based on Foata normal form. 45/1206 useless extension candidates. Maximal degree in co-relation 6766. Up to 472 conditions per place. [2023-11-19 08:00:39,898 INFO L140 encePairwiseOnDemand]: 257/263 looper letters, 112 selfloop transitions, 10 changer transitions 23/146 dead transitions. [2023-11-19 08:00:39,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 146 transitions, 1804 flow [2023-11-19 08:00:39,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:00:39,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 08:00:39,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 793 transitions. [2023-11-19 08:00:39,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4307441607821836 [2023-11-19 08:00:39,904 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 793 transitions. [2023-11-19 08:00:39,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 793 transitions. [2023-11-19 08:00:39,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:39,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 793 transitions. [2023-11-19 08:00:39,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 113.28571428571429) internal successors, (793), 7 states have internal predecessors, (793), 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 08:00:39,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 263.0) internal successors, (2104), 8 states have internal predecessors, (2104), 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 08:00:39,913 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 263.0) internal successors, (2104), 8 states have internal predecessors, (2104), 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 08:00:39,913 INFO L175 Difference]: Start difference. First operand has 85 places, 79 transitions, 802 flow. Second operand 7 states and 793 transitions. [2023-11-19 08:00:39,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 146 transitions, 1804 flow [2023-11-19 08:00:39,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 146 transitions, 1728 flow, removed 22 selfloop flow, removed 6 redundant places. [2023-11-19 08:00:39,947 INFO L231 Difference]: Finished difference. Result has 86 places, 79 transitions, 776 flow [2023-11-19 08:00:39,947 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=776, PETRI_PLACES=86, PETRI_TRANSITIONS=79} [2023-11-19 08:00:39,948 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 44 predicate places. [2023-11-19 08:00:39,948 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 79 transitions, 776 flow [2023-11-19 08:00:39,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.16666666666667) internal successors, (643), 6 states have internal predecessors, (643), 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 08:00:39,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:39,949 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:39,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 08:00:39,949 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:39,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:39,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1967416417, now seen corresponding path program 1 times [2023-11-19 08:00:39,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:39,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699784101] [2023-11-19 08:00:39,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:39,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:41,775 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 08:00:41,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:41,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699784101] [2023-11-19 08:00:41,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699784101] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:41,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:41,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 08:00:41,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424851810] [2023-11-19 08:00:41,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:41,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 08:00:41,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:41,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 08:00:41,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-19 08:00:41,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 263 [2023-11-19 08:00:41,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 776 flow. Second operand has 9 states, 9 states have (on average 103.44444444444444) internal successors, (931), 9 states have internal predecessors, (931), 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 08:00:41,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:41,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 263 [2023-11-19 08:00:41,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:42,560 INFO L124 PetriNetUnfolderBase]: 783/1491 cut-off events. [2023-11-19 08:00:42,560 INFO L125 PetriNetUnfolderBase]: For 9879/9885 co-relation queries the response was YES. [2023-11-19 08:00:42,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8395 conditions, 1491 events. 783/1491 cut-off events. For 9879/9885 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8363 event pairs, 161 based on Foata normal form. 2/1492 useless extension candidates. Maximal degree in co-relation 8367. Up to 484 conditions per place. [2023-11-19 08:00:42,568 INFO L140 encePairwiseOnDemand]: 255/263 looper letters, 91 selfloop transitions, 13 changer transitions 46/151 dead transitions. [2023-11-19 08:00:42,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 151 transitions, 1730 flow [2023-11-19 08:00:42,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:00:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 08:00:42,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 876 transitions. [2023-11-19 08:00:42,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41634980988593157 [2023-11-19 08:00:42,583 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 876 transitions. [2023-11-19 08:00:42,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 876 transitions. [2023-11-19 08:00:42,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:42,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 876 transitions. [2023-11-19 08:00:42,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 109.5) internal successors, (876), 8 states have internal predecessors, (876), 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 08:00:42,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 263.0) internal successors, (2367), 9 states have internal predecessors, (2367), 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 08:00:42,612 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 263.0) internal successors, (2367), 9 states have internal predecessors, (2367), 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 08:00:42,613 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 776 flow. Second operand 8 states and 876 transitions. [2023-11-19 08:00:42,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 151 transitions, 1730 flow [2023-11-19 08:00:42,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 151 transitions, 1522 flow, removed 76 selfloop flow, removed 7 redundant places. [2023-11-19 08:00:42,652 INFO L231 Difference]: Finished difference. Result has 88 places, 70 transitions, 633 flow [2023-11-19 08:00:42,653 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=633, PETRI_PLACES=88, PETRI_TRANSITIONS=70} [2023-11-19 08:00:42,653 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 46 predicate places. [2023-11-19 08:00:42,653 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 70 transitions, 633 flow [2023-11-19 08:00:42,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 103.44444444444444) internal successors, (931), 9 states have internal predecessors, (931), 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 08:00:42,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:42,654 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:42,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 08:00:42,655 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:42,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:42,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1758254129, now seen corresponding path program 2 times [2023-11-19 08:00:42,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:42,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690017976] [2023-11-19 08:00:42,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:42,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:44,647 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 08:00:44,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:44,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690017976] [2023-11-19 08:00:44,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690017976] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:44,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:44,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 08:00:44,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976720235] [2023-11-19 08:00:44,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:44,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 08:00:44,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:44,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 08:00:44,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-19 08:00:44,804 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 263 [2023-11-19 08:00:44,805 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 70 transitions, 633 flow. Second operand has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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 08:00:44,805 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:44,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 263 [2023-11-19 08:00:44,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:45,404 INFO L124 PetriNetUnfolderBase]: 660/1311 cut-off events. [2023-11-19 08:00:45,404 INFO L125 PetriNetUnfolderBase]: For 7523/7526 co-relation queries the response was YES. [2023-11-19 08:00:45,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6721 conditions, 1311 events. 660/1311 cut-off events. For 7523/7526 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 7398 event pairs, 231 based on Foata normal form. 2/1312 useless extension candidates. Maximal degree in co-relation 6693. Up to 905 conditions per place. [2023-11-19 08:00:45,414 INFO L140 encePairwiseOnDemand]: 253/263 looper letters, 64 selfloop transitions, 15 changer transitions 33/113 dead transitions. [2023-11-19 08:00:45,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 113 transitions, 1182 flow [2023-11-19 08:00:45,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 08:00:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-19 08:00:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 829 transitions. [2023-11-19 08:00:45,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39401140684410646 [2023-11-19 08:00:45,417 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 829 transitions. [2023-11-19 08:00:45,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 829 transitions. [2023-11-19 08:00:45,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:45,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 829 transitions. [2023-11-19 08:00:45,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 103.625) internal successors, (829), 8 states have internal predecessors, (829), 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 08:00:45,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 263.0) internal successors, (2367), 9 states have internal predecessors, (2367), 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 08:00:45,425 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 263.0) internal successors, (2367), 9 states have internal predecessors, (2367), 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 08:00:45,425 INFO L175 Difference]: Start difference. First operand has 88 places, 70 transitions, 633 flow. Second operand 8 states and 829 transitions. [2023-11-19 08:00:45,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 113 transitions, 1182 flow [2023-11-19 08:00:45,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 113 transitions, 1149 flow, removed 5 selfloop flow, removed 6 redundant places. [2023-11-19 08:00:45,453 INFO L231 Difference]: Finished difference. Result has 89 places, 68 transitions, 627 flow [2023-11-19 08:00:45,453 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=263, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=627, PETRI_PLACES=89, PETRI_TRANSITIONS=68} [2023-11-19 08:00:45,454 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 47 predicate places. [2023-11-19 08:00:45,454 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 68 transitions, 627 flow [2023-11-19 08:00:45,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 98.0) internal successors, (1078), 11 states have internal predecessors, (1078), 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 08:00:45,454 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:45,455 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:45,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 08:00:45,455 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2023-11-19 08:00:45,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:45,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1950178047, now seen corresponding path program 3 times [2023-11-19 08:00:45,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:45,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213098183] [2023-11-19 08:00:45,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:45,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat