./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl --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 a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:16:35,443 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:16:35,508 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:16:35,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:16:35,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:16:35,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:16:35,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:16:35,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:16:35,542 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:16:35,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:16:35,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:16:35,545 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:16:35,545 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:16:35,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:16:35,546 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:16:35,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:16:35,548 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:16:35,548 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:16:35,549 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:16:35,549 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:16:35,550 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:16:35,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:16:35,551 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:16:35,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:16:35,552 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:16:35,552 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:16:35,553 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:16:35,553 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:16:35,554 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:16:35,554 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:16:35,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:16:35,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:16:35,556 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:16:35,556 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:16:35,557 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:16:35,557 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:16:35,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:16:35,558 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:16:35,559 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_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2023-11-12 02:16:35,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:16:35,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:16:35,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:16:35,919 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:16:35,920 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:16:35,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:16:39,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:16:39,458 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:16:39,459 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:16:39,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/data/36100af1b/45447ab3cecd46e6990d49e1682c41e8/FLAGc312679ce [2023-11-12 02:16:39,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/data/36100af1b/45447ab3cecd46e6990d49e1682c41e8 [2023-11-12 02:16:39,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:16:39,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:16:39,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:39,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:16:39,507 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:16:39,508 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:39" (1/1) ... [2023-11-12 02:16:39,509 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a2b480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:39, skipping insertion in model container [2023-11-12 02:16:39,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:39" (1/1) ... [2023-11-12 02:16:39,557 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:16:40,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:40,131 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:16:40,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:40,276 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:16:40,276 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:16:40,283 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:16:40,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40 WrapperNode [2023-11-12 02:16:40,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:40,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:16:40,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:16:40,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:16:40,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,346 INFO L138 Inliner]: procedures = 177, calls = 68, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 164 [2023-11-12 02:16:40,347 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:16:40,348 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:16:40,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:16:40,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:16:40,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,391 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,416 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:16:40,417 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:16:40,417 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:16:40,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:16:40,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (1/1) ... [2023-11-12 02:16:40,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:16:40,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:40,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:40,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e7041a5-04dc-410c-b44a-5cba0775d251/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:16:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:16:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:16:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:16:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:16:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:16:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:16:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:16:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:16:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:16:40,512 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:16:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:16:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:16:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:16:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:16:40,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:16:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:16:40,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:16:40,517 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:16:40,757 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:16:40,760 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:16:41,171 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:16:41,429 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:16:41,430 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:16:41,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:41 BoogieIcfgContainer [2023-11-12 02:16:41,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:16:41,443 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:16:41,443 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:16:41,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:16:41,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:16:39" (1/3) ... [2023-11-12 02:16:41,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bcca92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:16:41, skipping insertion in model container [2023-11-12 02:16:41,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:40" (2/3) ... [2023-11-12 02:16:41,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64bcca92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:16:41, skipping insertion in model container [2023-11-12 02:16:41,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:41" (3/3) ... [2023-11-12 02:16:41,453 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2023-11-12 02:16:41,471 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:16:41,471 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-12 02:16:41,471 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:16:41,550 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:16:41,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 145 transitions, 306 flow [2023-11-12 02:16:41,669 INFO L124 PetriNetUnfolderBase]: 3/141 cut-off events. [2023-11-12 02:16:41,669 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:16:41,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 3/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-12 02:16:41,677 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 145 transitions, 306 flow [2023-11-12 02:16:41,683 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 141 transitions, 294 flow [2023-11-12 02:16:41,687 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:16:41,698 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 141 transitions, 294 flow [2023-11-12 02:16:41,701 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 141 transitions, 294 flow [2023-11-12 02:16:41,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 141 transitions, 294 flow [2023-11-12 02:16:41,766 INFO L124 PetriNetUnfolderBase]: 3/141 cut-off events. [2023-11-12 02:16:41,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:16:41,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 3/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 107 event pairs, 0 based on Foata normal form. 0/127 useless extension candidates. Maximal degree in co-relation 103. Up to 2 conditions per place. [2023-11-12 02:16:41,771 INFO L119 LiptonReduction]: Number of co-enabled transitions 3532 [2023-11-12 02:16:47,846 INFO L134 LiptonReduction]: Checked pairs total: 9002 [2023-11-12 02:16:47,847 INFO L136 LiptonReduction]: Total number of compositions: 130 [2023-11-12 02:16:47,864 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:16:47,872 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;@5a2d2ff7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:16:47,872 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-12 02:16:47,875 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:16:47,875 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-12 02:16:47,875 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:16:47,875 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:47,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:16:47,876 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:16:47,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:47,882 INFO L85 PathProgramCache]: Analyzing trace with hash 610, now seen corresponding path program 1 times [2023-11-12 02:16:47,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:47,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137857208] [2023-11-12 02:16:47,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:47,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:48,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:48,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137857208] [2023-11-12 02:16:48,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137857208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:48,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:48,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:16:48,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954684329] [2023-11-12 02:16:48,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:48,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:16:48,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:48,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:16:48,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:16:48,100 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 275 [2023-11-12 02:16:48,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:48,103 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:48,103 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 275 [2023-11-12 02:16:48,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:49,115 INFO L124 PetriNetUnfolderBase]: 4151/5786 cut-off events. [2023-11-12 02:16:49,115 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-12 02:16:49,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11578 conditions, 5786 events. 4151/5786 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 30000 event pairs, 4151 based on Foata normal form. 180/5071 useless extension candidates. Maximal degree in co-relation 11566. Up to 5689 conditions per place. [2023-11-12 02:16:49,179 INFO L140 encePairwiseOnDemand]: 266/275 looper letters, 26 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2023-11-12 02:16:49,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 124 flow [2023-11-12 02:16:49,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:16:49,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:16:49,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 297 transitions. [2023-11-12 02:16:49,202 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.54 [2023-11-12 02:16:49,202 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 297 transitions. [2023-11-12 02:16:49,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 297 transitions. [2023-11-12 02:16:49,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:49,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 297 transitions. [2023-11-12 02:16:49,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:49,224 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:49,225 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:49,227 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 90 flow. Second operand 2 states and 297 transitions. [2023-11-12 02:16:49,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 124 flow [2023-11-12 02:16:49,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 120 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:16:49,236 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 68 flow [2023-11-12 02:16:49,238 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2023-11-12 02:16:49,243 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -11 predicate places. [2023-11-12 02:16:49,243 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 68 flow [2023-11-12 02:16:49,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 131.5) internal successors, (263), 2 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:49,244 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:49,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:49,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:16:49,245 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:16:49,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:49,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1866647968, now seen corresponding path program 1 times [2023-11-12 02:16:49,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:49,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791011711] [2023-11-12 02:16:49,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:49,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:49,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:49,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:49,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791011711] [2023-11-12 02:16:49,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791011711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:49,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:49,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:16:49,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379432262] [2023-11-12 02:16:49,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:49,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:49,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:49,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:49,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:49,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 275 [2023-11-12 02:16:49,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:49,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:49,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 275 [2023-11-12 02:16:49,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:50,510 INFO L124 PetriNetUnfolderBase]: 3299/4853 cut-off events. [2023-11-12 02:16:50,511 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:16:50,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9502 conditions, 4853 events. 3299/4853 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 27141 event pairs, 743 based on Foata normal form. 0/4408 useless extension candidates. Maximal degree in co-relation 9499. Up to 3421 conditions per place. [2023-11-12 02:16:50,545 INFO L140 encePairwiseOnDemand]: 272/275 looper letters, 33 selfloop transitions, 2 changer transitions 4/43 dead transitions. [2023-11-12 02:16:50,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 172 flow [2023-11-12 02:16:50,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:16:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 430 transitions. [2023-11-12 02:16:50,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5212121212121212 [2023-11-12 02:16:50,550 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 430 transitions. [2023-11-12 02:16:50,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 430 transitions. [2023-11-12 02:16:50,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:50,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 430 transitions. [2023-11-12 02:16:50,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:50,557 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:50,561 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 275.0) internal successors, (1100), 4 states have internal predecessors, (1100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:50,561 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 68 flow. Second operand 3 states and 430 transitions. [2023-11-12 02:16:50,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 172 flow [2023-11-12 02:16:50,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 172 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:16:50,565 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 66 flow [2023-11-12 02:16:50,565 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2023-11-12 02:16:50,567 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -10 predicate places. [2023-11-12 02:16:50,567 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 66 flow [2023-11-12 02:16:50,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:50,572 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:50,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:50,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:16:50,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:16:50,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:50,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1924714612, now seen corresponding path program 1 times [2023-11-12 02:16:50,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:50,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874887628] [2023-11-12 02:16:50,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:50,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:50,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:51,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:51,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:51,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874887628] [2023-11-12 02:16:51,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874887628] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:51,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:51,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:51,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282823826] [2023-11-12 02:16:51,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:51,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:51,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:51,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:51,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:51,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 275 [2023-11-12 02:16:51,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 66 flow. Second operand has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:51,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:51,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 275 [2023-11-12 02:16:51,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:52,455 INFO L124 PetriNetUnfolderBase]: 2075/2928 cut-off events. [2023-11-12 02:16:52,455 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2023-11-12 02:16:52,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6103 conditions, 2928 events. 2075/2928 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 13812 event pairs, 807 based on Foata normal form. 0/2901 useless extension candidates. Maximal degree in co-relation 6099. Up to 2763 conditions per place. [2023-11-12 02:16:52,509 INFO L140 encePairwiseOnDemand]: 270/275 looper letters, 31 selfloop transitions, 4 changer transitions 0/39 dead transitions. [2023-11-12 02:16:52,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 39 transitions, 160 flow [2023-11-12 02:16:52,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:52,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:52,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2023-11-12 02:16:52,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4254545454545455 [2023-11-12 02:16:52,513 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 702 transitions. [2023-11-12 02:16:52,514 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 702 transitions. [2023-11-12 02:16:52,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:52,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 702 transitions. [2023-11-12 02:16:52,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:52,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:52,523 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:52,523 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 66 flow. Second operand 6 states and 702 transitions. [2023-11-12 02:16:52,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 39 transitions, 160 flow [2023-11-12 02:16:52,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 39 transitions, 156 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:16:52,527 INFO L231 Difference]: Finished difference. Result has 41 places, 26 transitions, 68 flow [2023-11-12 02:16:52,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=68, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2023-11-12 02:16:52,529 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -10 predicate places. [2023-11-12 02:16:52,529 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 68 flow [2023-11-12 02:16:52,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.0) internal successors, (678), 6 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:52,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:52,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:52,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:16:52,535 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:16:52,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:52,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1924714635, now seen corresponding path program 1 times [2023-11-12 02:16:52,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:52,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614334430] [2023-11-12 02:16:52,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:52,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:52,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:52,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:52,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614334430] [2023-11-12 02:16:52,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614334430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:52,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:52,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:16:52,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993801953] [2023-11-12 02:16:52,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:52,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:52,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:52,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:52,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:16:52,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 275 [2023-11-12 02:16:52,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:52,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:52,815 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 275 [2023-11-12 02:16:52,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:53,529 INFO L124 PetriNetUnfolderBase]: 3033/4368 cut-off events. [2023-11-12 02:16:53,529 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-12 02:16:53,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8817 conditions, 4368 events. 3033/4368 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 237. Compared 22000 event pairs, 1341 based on Foata normal form. 192/4543 useless extension candidates. Maximal degree in co-relation 8813. Up to 3353 conditions per place. [2023-11-12 02:16:53,565 INFO L140 encePairwiseOnDemand]: 270/275 looper letters, 37 selfloop transitions, 3 changer transitions 21/64 dead transitions. [2023-11-12 02:16:53,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 64 transitions, 278 flow [2023-11-12 02:16:53,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:16:53,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:16:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 683 transitions. [2023-11-12 02:16:53,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49672727272727274 [2023-11-12 02:16:53,570 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 683 transitions. [2023-11-12 02:16:53,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 683 transitions. [2023-11-12 02:16:53,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:53,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 683 transitions. [2023-11-12 02:16:53,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:53,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:53,580 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:53,580 INFO L175 Difference]: Start difference. First operand has 41 places, 26 transitions, 68 flow. Second operand 5 states and 683 transitions. [2023-11-12 02:16:53,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 64 transitions, 278 flow [2023-11-12 02:16:53,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 64 transitions, 266 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:16:53,583 INFO L231 Difference]: Finished difference. Result has 44 places, 28 transitions, 88 flow [2023-11-12 02:16:53,583 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=88, PETRI_PLACES=44, PETRI_TRANSITIONS=28} [2023-11-12 02:16:53,584 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, -7 predicate places. [2023-11-12 02:16:53,585 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 28 transitions, 88 flow [2023-11-12 02:16:53,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:53,586 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:53,586 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:53,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:16:53,586 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:16:53,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:53,587 INFO L85 PathProgramCache]: Analyzing trace with hash 463370691, now seen corresponding path program 1 times [2023-11-12 02:16:53,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:53,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372781862] [2023-11-12 02:16:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:54,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:54,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:54,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372781862] [2023-11-12 02:16:54,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372781862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:54,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:54,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:54,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537974621] [2023-11-12 02:16:54,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:54,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:16:54,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:54,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:16:54,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:16:54,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 275 [2023-11-12 02:16:54,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 28 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:54,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:54,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 275 [2023-11-12 02:16:54,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:56,486 INFO L124 PetriNetUnfolderBase]: 8125/11644 cut-off events. [2023-11-12 02:16:56,487 INFO L125 PetriNetUnfolderBase]: For 4672/4672 co-relation queries the response was YES. [2023-11-12 02:16:56,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27016 conditions, 11644 events. 8125/11644 cut-off events. For 4672/4672 co-relation queries the response was YES. Maximal size of possible extension queue 510. Compared 65930 event pairs, 550 based on Foata normal form. 492/12136 useless extension candidates. Maximal degree in co-relation 27009. Up to 6133 conditions per place. [2023-11-12 02:16:56,560 INFO L140 encePairwiseOnDemand]: 263/275 looper letters, 50 selfloop transitions, 13 changer transitions 38/102 dead transitions. [2023-11-12 02:16:56,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 102 transitions, 500 flow [2023-11-12 02:16:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:16:56,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:16:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 905 transitions. [2023-11-12 02:16:56,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4701298701298701 [2023-11-12 02:16:56,565 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 905 transitions. [2023-11-12 02:16:56,565 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 905 transitions. [2023-11-12 02:16:56,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:56,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 905 transitions. [2023-11-12 02:16:56,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.28571428571428) internal successors, (905), 7 states have internal predecessors, (905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:56,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:56,575 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:56,575 INFO L175 Difference]: Start difference. First operand has 44 places, 28 transitions, 88 flow. Second operand 7 states and 905 transitions. [2023-11-12 02:16:56,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 102 transitions, 500 flow [2023-11-12 02:16:56,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 102 transitions, 491 flow, removed 2 selfloop flow, removed 2 redundant places. [2023-11-12 02:16:56,690 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 211 flow [2023-11-12 02:16:56,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=211, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2023-11-12 02:16:56,691 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2023-11-12 02:16:56,691 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 211 flow [2023-11-12 02:16:56,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.6) internal successors, (588), 5 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:56,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:56,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:56,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:16:56,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:16:56,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:56,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1006811581, now seen corresponding path program 1 times [2023-11-12 02:16:56,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:56,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109593335] [2023-11-12 02:16:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:56,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:57,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:57,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109593335] [2023-11-12 02:16:57,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109593335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:57,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:57,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:57,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947718168] [2023-11-12 02:16:57,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:57,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:16:57,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:57,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:16:57,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:16:57,677 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 275 [2023-11-12 02:16:57,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 211 flow. Second operand has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:57,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:57,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 275 [2023-11-12 02:16:57,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:59,872 INFO L124 PetriNetUnfolderBase]: 9653/13730 cut-off events. [2023-11-12 02:16:59,873 INFO L125 PetriNetUnfolderBase]: For 21900/21900 co-relation queries the response was YES. [2023-11-12 02:16:59,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44995 conditions, 13730 events. 9653/13730 cut-off events. For 21900/21900 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 78075 event pairs, 1975 based on Foata normal form. 420/14150 useless extension candidates. Maximal degree in co-relation 44984. Up to 5521 conditions per place. [2023-11-12 02:16:59,977 INFO L140 encePairwiseOnDemand]: 263/275 looper letters, 58 selfloop transitions, 24 changer transitions 35/118 dead transitions. [2023-11-12 02:16:59,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 118 transitions, 809 flow [2023-11-12 02:16:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:16:59,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:16:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 901 transitions. [2023-11-12 02:16:59,982 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46805194805194805 [2023-11-12 02:16:59,982 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 901 transitions. [2023-11-12 02:16:59,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 901 transitions. [2023-11-12 02:16:59,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:59,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 901 transitions. [2023-11-12 02:16:59,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.71428571428572) internal successors, (901), 7 states have internal predecessors, (901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:59,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:59,991 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:59,991 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 211 flow. Second operand 7 states and 901 transitions. [2023-11-12 02:16:59,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 118 transitions, 809 flow [2023-11-12 02:17:00,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 118 transitions, 793 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-11-12 02:17:00,150 INFO L231 Difference]: Finished difference. Result has 59 places, 56 transitions, 451 flow [2023-11-12 02:17:00,150 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=451, PETRI_PLACES=59, PETRI_TRANSITIONS=56} [2023-11-12 02:17:00,153 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2023-11-12 02:17:00,153 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 56 transitions, 451 flow [2023-11-12 02:17:00,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.8) internal successors, (589), 5 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:00,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:00,154 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:00,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:17:00,155 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:00,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1515104740, now seen corresponding path program 1 times [2023-11-12 02:17:00,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:00,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042273146] [2023-11-12 02:17:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:00,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:00,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:00,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:00,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042273146] [2023-11-12 02:17:00,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042273146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:00,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:00,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:00,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310053291] [2023-11-12 02:17:00,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:00,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:00,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:00,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:00,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:00,790 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2023-11-12 02:17:00,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 56 transitions, 451 flow. Second operand has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:00,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:00,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2023-11-12 02:17:00,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:03,052 INFO L124 PetriNetUnfolderBase]: 10010/14830 cut-off events. [2023-11-12 02:17:03,052 INFO L125 PetriNetUnfolderBase]: For 51683/52327 co-relation queries the response was YES. [2023-11-12 02:17:03,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56399 conditions, 14830 events. 10010/14830 cut-off events. For 51683/52327 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 92072 event pairs, 2643 based on Foata normal form. 863/15611 useless extension candidates. Maximal degree in co-relation 56384. Up to 11085 conditions per place. [2023-11-12 02:17:03,166 INFO L140 encePairwiseOnDemand]: 270/275 looper letters, 57 selfloop transitions, 6 changer transitions 25/103 dead transitions. [2023-11-12 02:17:03,166 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 103 transitions, 950 flow [2023-11-12 02:17:03,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:17:03,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:17:03,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 678 transitions. [2023-11-12 02:17:03,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4930909090909091 [2023-11-12 02:17:03,170 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 678 transitions. [2023-11-12 02:17:03,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 678 transitions. [2023-11-12 02:17:03,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:03,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 678 transitions. [2023-11-12 02:17:03,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 135.6) internal successors, (678), 5 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:03,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:03,179 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 275.0) internal successors, (1650), 6 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:03,179 INFO L175 Difference]: Start difference. First operand has 59 places, 56 transitions, 451 flow. Second operand 5 states and 678 transitions. [2023-11-12 02:17:03,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 103 transitions, 950 flow [2023-11-12 02:17:03,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 103 transitions, 944 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-12 02:17:03,367 INFO L231 Difference]: Finished difference. Result has 61 places, 60 transitions, 515 flow [2023-11-12 02:17:03,367 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=445, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=515, PETRI_PLACES=61, PETRI_TRANSITIONS=60} [2023-11-12 02:17:03,368 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2023-11-12 02:17:03,368 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 60 transitions, 515 flow [2023-11-12 02:17:03,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.8) internal successors, (639), 5 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:03,369 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:03,369 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:03,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:17:03,369 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:03,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1286395008, now seen corresponding path program 1 times [2023-11-12 02:17:03,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:03,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030725030] [2023-11-12 02:17:03,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:03,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:04,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:04,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030725030] [2023-11-12 02:17:04,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030725030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:04,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:04,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:04,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995428834] [2023-11-12 02:17:04,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:04,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:04,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:04,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:04,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:04,623 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 275 [2023-11-12 02:17:04,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 515 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:04,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:04,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 275 [2023-11-12 02:17:04,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:07,493 INFO L124 PetriNetUnfolderBase]: 14665/20674 cut-off events. [2023-11-12 02:17:07,493 INFO L125 PetriNetUnfolderBase]: For 73018/73018 co-relation queries the response was YES. [2023-11-12 02:17:07,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84097 conditions, 20674 events. 14665/20674 cut-off events. For 73018/73018 co-relation queries the response was YES. Maximal size of possible extension queue 823. Compared 119591 event pairs, 3876 based on Foata normal form. 772/21446 useless extension candidates. Maximal degree in co-relation 84080. Up to 9678 conditions per place. [2023-11-12 02:17:07,655 INFO L140 encePairwiseOnDemand]: 264/275 looper letters, 59 selfloop transitions, 30 changer transitions 39/128 dead transitions. [2023-11-12 02:17:07,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 128 transitions, 1286 flow [2023-11-12 02:17:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:07,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:17:07,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 754 transitions. [2023-11-12 02:17:07,659 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45696969696969697 [2023-11-12 02:17:07,659 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 754 transitions. [2023-11-12 02:17:07,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 754 transitions. [2023-11-12 02:17:07,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:07,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 754 transitions. [2023-11-12 02:17:07,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.66666666666667) internal successors, (754), 6 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:07,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:07,669 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:07,669 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 515 flow. Second operand 6 states and 754 transitions. [2023-11-12 02:17:07,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 128 transitions, 1286 flow [2023-11-12 02:17:07,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 128 transitions, 1272 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-12 02:17:07,963 INFO L231 Difference]: Finished difference. Result has 66 places, 75 transitions, 810 flow [2023-11-12 02:17:07,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=810, PETRI_PLACES=66, PETRI_TRANSITIONS=75} [2023-11-12 02:17:07,966 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 15 predicate places. [2023-11-12 02:17:07,967 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 75 transitions, 810 flow [2023-11-12 02:17:07,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:07,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:07,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:07,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:17:07,968 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:07,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:07,969 INFO L85 PathProgramCache]: Analyzing trace with hash -275405878, now seen corresponding path program 1 times [2023-11-12 02:17:07,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:07,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762050450] [2023-11-12 02:17:07,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:07,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:09,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:09,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762050450] [2023-11-12 02:17:09,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762050450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:09,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:09,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148168504] [2023-11-12 02:17:09,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:09,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:09,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:09,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:09,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 275 [2023-11-12 02:17:09,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 75 transitions, 810 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:09,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:09,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 275 [2023-11-12 02:17:09,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:12,402 INFO L124 PetriNetUnfolderBase]: 13872/19589 cut-off events. [2023-11-12 02:17:12,402 INFO L125 PetriNetUnfolderBase]: For 106145/106145 co-relation queries the response was YES. [2023-11-12 02:17:12,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93860 conditions, 19589 events. 13872/19589 cut-off events. For 106145/106145 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 110761 event pairs, 2289 based on Foata normal form. 628/20217 useless extension candidates. Maximal degree in co-relation 93840. Up to 10329 conditions per place. [2023-11-12 02:17:12,529 INFO L140 encePairwiseOnDemand]: 262/275 looper letters, 92 selfloop transitions, 44 changer transitions 62/198 dead transitions. [2023-11-12 02:17:12,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 198 transitions, 2510 flow [2023-11-12 02:17:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:17:12,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:17:12,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 888 transitions. [2023-11-12 02:17:12,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4612987012987013 [2023-11-12 02:17:12,534 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 888 transitions. [2023-11-12 02:17:12,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 888 transitions. [2023-11-12 02:17:12,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:12,535 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 888 transitions. [2023-11-12 02:17:12,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 126.85714285714286) internal successors, (888), 7 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:12,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:12,545 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:12,545 INFO L175 Difference]: Start difference. First operand has 66 places, 75 transitions, 810 flow. Second operand 7 states and 888 transitions. [2023-11-12 02:17:12,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 198 transitions, 2510 flow [2023-11-12 02:17:12,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 198 transitions, 2477 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-11-12 02:17:12,967 INFO L231 Difference]: Finished difference. Result has 74 places, 107 transitions, 1485 flow [2023-11-12 02:17:12,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1485, PETRI_PLACES=74, PETRI_TRANSITIONS=107} [2023-11-12 02:17:12,969 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 23 predicate places. [2023-11-12 02:17:12,969 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 107 transitions, 1485 flow [2023-11-12 02:17:12,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:12,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:12,970 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:12,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:17:12,970 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:12,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:12,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1719778744, now seen corresponding path program 2 times [2023-11-12 02:17:12,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:12,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595612572] [2023-11-12 02:17:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:12,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:13,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:13,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595612572] [2023-11-12 02:17:13,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595612572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:13,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:13,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:13,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810739990] [2023-11-12 02:17:13,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:13,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:13,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:13,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:13,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:13,401 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 275 [2023-11-12 02:17:13,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 107 transitions, 1485 flow. Second operand has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:13,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:13,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 275 [2023-11-12 02:17:13,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:16,603 INFO L124 PetriNetUnfolderBase]: 10712/15790 cut-off events. [2023-11-12 02:17:16,604 INFO L125 PetriNetUnfolderBase]: For 135073/136154 co-relation queries the response was YES. [2023-11-12 02:17:16,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87241 conditions, 15790 events. 10712/15790 cut-off events. For 135073/136154 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 97661 event pairs, 1702 based on Foata normal form. 880/16520 useless extension candidates. Maximal degree in co-relation 87217. Up to 10613 conditions per place. [2023-11-12 02:17:16,722 INFO L140 encePairwiseOnDemand]: 268/275 looper letters, 99 selfloop transitions, 22 changer transitions 23/179 dead transitions. [2023-11-12 02:17:16,722 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 179 transitions, 2582 flow [2023-11-12 02:17:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:16,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:17:16,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 799 transitions. [2023-11-12 02:17:16,726 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48424242424242425 [2023-11-12 02:17:16,726 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 799 transitions. [2023-11-12 02:17:16,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 799 transitions. [2023-11-12 02:17:16,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:16,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 799 transitions. [2023-11-12 02:17:16,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.16666666666666) internal successors, (799), 6 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:16,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:16,734 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 275.0) internal successors, (1925), 7 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:16,734 INFO L175 Difference]: Start difference. First operand has 74 places, 107 transitions, 1485 flow. Second operand 6 states and 799 transitions. [2023-11-12 02:17:16,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 179 transitions, 2582 flow [2023-11-12 02:17:17,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 179 transitions, 2566 flow, removed 8 selfloop flow, removed 1 redundant places. [2023-11-12 02:17:17,111 INFO L231 Difference]: Finished difference. Result has 78 places, 118 transitions, 1703 flow [2023-11-12 02:17:17,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1471, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1703, PETRI_PLACES=78, PETRI_TRANSITIONS=118} [2023-11-12 02:17:17,112 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 27 predicate places. [2023-11-12 02:17:17,112 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 118 transitions, 1703 flow [2023-11-12 02:17:17,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.5) internal successors, (753), 6 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:17,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:17,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:17,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:17:17,113 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:17,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:17,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1691410024, now seen corresponding path program 3 times [2023-11-12 02:17:17,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:17,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118405884] [2023-11-12 02:17:17,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:17,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:17,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:17,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118405884] [2023-11-12 02:17:17,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118405884] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:17,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:17,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:17,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876580599] [2023-11-12 02:17:17,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:17,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:17,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:17,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:17,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:17,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 275 [2023-11-12 02:17:17,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 118 transitions, 1703 flow. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:17,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:17,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 275 [2023-11-12 02:17:17,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:20,534 INFO L124 PetriNetUnfolderBase]: 10459/15447 cut-off events. [2023-11-12 02:17:20,534 INFO L125 PetriNetUnfolderBase]: For 152364/153409 co-relation queries the response was YES. [2023-11-12 02:17:20,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88504 conditions, 15447 events. 10459/15447 cut-off events. For 152364/153409 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 95341 event pairs, 1724 based on Foata normal form. 822/16094 useless extension candidates. Maximal degree in co-relation 88477. Up to 10474 conditions per place. [2023-11-12 02:17:20,648 INFO L140 encePairwiseOnDemand]: 269/275 looper letters, 101 selfloop transitions, 25 changer transitions 29/190 dead transitions. [2023-11-12 02:17:20,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 190 transitions, 2856 flow [2023-11-12 02:17:20,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:17:20,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:17:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 933 transitions. [2023-11-12 02:17:20,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48467532467532465 [2023-11-12 02:17:20,653 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 933 transitions. [2023-11-12 02:17:20,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 933 transitions. [2023-11-12 02:17:20,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:20,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 933 transitions. [2023-11-12 02:17:20,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 133.28571428571428) internal successors, (933), 7 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,662 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,662 INFO L175 Difference]: Start difference. First operand has 78 places, 118 transitions, 1703 flow. Second operand 7 states and 933 transitions. [2023-11-12 02:17:20,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 190 transitions, 2856 flow [2023-11-12 02:17:20,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 190 transitions, 2807 flow, removed 14 selfloop flow, removed 3 redundant places. [2023-11-12 02:17:20,936 INFO L231 Difference]: Finished difference. Result has 83 places, 125 transitions, 1873 flow [2023-11-12 02:17:20,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1667, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1873, PETRI_PLACES=83, PETRI_TRANSITIONS=125} [2023-11-12 02:17:20,937 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 32 predicate places. [2023-11-12 02:17:20,937 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 125 transitions, 1873 flow [2023-11-12 02:17:20,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:20,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:20,938 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:20,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:17:20,939 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:20,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:20,939 INFO L85 PathProgramCache]: Analyzing trace with hash -561699567, now seen corresponding path program 1 times [2023-11-12 02:17:20,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:20,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516608692] [2023-11-12 02:17:20,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:20,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:21,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:21,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516608692] [2023-11-12 02:17:21,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516608692] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:21,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:21,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:17:21,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928765447] [2023-11-12 02:17:21,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:21,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:17:21,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:21,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:17:21,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:21,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 275 [2023-11-12 02:17:21,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 125 transitions, 1873 flow. Second operand has 7 states, 7 states have (on average 127.28571428571429) internal successors, (891), 7 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:21,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:17:21,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 275 [2023-11-12 02:17:21,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:17:24,859 INFO L124 PetriNetUnfolderBase]: 10476/15470 cut-off events. [2023-11-12 02:17:24,859 INFO L125 PetriNetUnfolderBase]: For 175166/176165 co-relation queries the response was YES. [2023-11-12 02:17:25,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90731 conditions, 15470 events. 10476/15470 cut-off events. For 175166/176165 co-relation queries the response was YES. Maximal size of possible extension queue 711. Compared 94559 event pairs, 1502 based on Foata normal form. 979/16240 useless extension candidates. Maximal degree in co-relation 90702. Up to 10518 conditions per place. [2023-11-12 02:17:25,130 INFO L140 encePairwiseOnDemand]: 269/275 looper letters, 102 selfloop transitions, 27 changer transitions 27/191 dead transitions. [2023-11-12 02:17:25,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 191 transitions, 2889 flow [2023-11-12 02:17:25,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:17:25,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:17:25,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 943 transitions. [2023-11-12 02:17:25,134 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48987012987012984 [2023-11-12 02:17:25,135 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 943 transitions. [2023-11-12 02:17:25,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 943 transitions. [2023-11-12 02:17:25,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:17:25,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 943 transitions. [2023-11-12 02:17:25,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 134.71428571428572) internal successors, (943), 7 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:25,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:25,142 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 275.0) internal successors, (2200), 8 states have internal predecessors, (2200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:25,143 INFO L175 Difference]: Start difference. First operand has 83 places, 125 transitions, 1873 flow. Second operand 7 states and 943 transitions. [2023-11-12 02:17:25,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 191 transitions, 2889 flow [2023-11-12 02:17:25,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 191 transitions, 2813 flow, removed 26 selfloop flow, removed 3 redundant places. [2023-11-12 02:17:25,433 INFO L231 Difference]: Finished difference. Result has 88 places, 131 transitions, 2024 flow [2023-11-12 02:17:25,433 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=275, PETRI_DIFFERENCE_MINUEND_FLOW=1830, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2024, PETRI_PLACES=88, PETRI_TRANSITIONS=131} [2023-11-12 02:17:25,434 INFO L281 CegarLoopForPetriNet]: 51 programPoint places, 37 predicate places. [2023-11-12 02:17:25,434 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 131 transitions, 2024 flow [2023-11-12 02:17:25,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 127.28571428571429) internal successors, (891), 7 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:25,435 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:17:25,435 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:25,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:17:25,435 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2023-11-12 02:17:25,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:25,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1773511900, now seen corresponding path program 1 times [2023-11-12 02:17:25,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:25,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138207324] [2023-11-12 02:17:25,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:25,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat