./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/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_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/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_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/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 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:24:31,317 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:24:31,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:24:31,451 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:24:31,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:24:31,494 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:24:31,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:24:31,495 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:24:31,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:24:31,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:24:31,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:24:31,504 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:24:31,504 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:24:31,506 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:24:31,507 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:24:31,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:24:31,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:24:31,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:24:31,509 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:24:31,509 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:24:31,510 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:24:31,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:24:31,511 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:24:31,511 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:24:31,512 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:24:31,512 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:24:31,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:24:31,514 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:24:31,514 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:24:31,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:31,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:24:31,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:24:31,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:24:31,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:24:31,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:24:31,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:24:31,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:24:31,517 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:24:31,518 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_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2023-11-12 02:24:31,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:24:31,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:24:31,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:24:31,933 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:24:31,934 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:24:31,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 02:24:35,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:24:35,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:24:35,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 02:24:35,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/data/5c6f89cb9/3aea454e2f8940a89daa0dea91a722d2/FLAGc58b70ee8 [2023-11-12 02:24:35,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/data/5c6f89cb9/3aea454e2f8940a89daa0dea91a722d2 [2023-11-12 02:24:35,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:24:35,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:24:35,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:35,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:24:35,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:24:35,374 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:35" (1/1) ... [2023-11-12 02:24:35,375 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710453ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:35, skipping insertion in model container [2023-11-12 02:24:35,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:24:35" (1/1) ... [2023-11-12 02:24:35,457 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:24:35,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:35,938 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:24:35,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:24:36,023 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:36,024 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:24:36,032 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:24:36,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36 WrapperNode [2023-11-12 02:24:36,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:24:36,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:36,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:24:36,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:24:36,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,120 INFO L138 Inliner]: procedures = 177, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2023-11-12 02:24:36,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:24:36,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:24:36,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:24:36,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:24:36,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,167 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:24:36,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:24:36,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:24:36,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:24:36,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (1/1) ... [2023-11-12 02:24:36,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:24:36,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:24:36,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:24:36,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:24:36,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:24:36,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:24:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:24:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:24:36,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:24:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 02:24:36,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 02:24:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 02:24:36,292 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 02:24:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 02:24:36,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 02:24:36,293 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 02:24:36,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 02:24:36,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:24:36,294 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:24:36,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:24:36,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:24:36,297 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 02:24:36,491 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:24:36,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:24:36,761 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:24:36,769 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:24:36,769 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:24:36,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:36 BoogieIcfgContainer [2023-11-12 02:24:36,772 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:24:36,775 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:24:36,775 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:24:36,779 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:24:36,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:24:35" (1/3) ... [2023-11-12 02:24:36,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e0180a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:36, skipping insertion in model container [2023-11-12 02:24:36,780 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:24:36" (2/3) ... [2023-11-12 02:24:36,780 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e0180a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:24:36, skipping insertion in model container [2023-11-12 02:24:36,781 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:36" (3/3) ... [2023-11-12 02:24:36,782 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-11-12 02:24:36,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:24:36,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-12 02:24:36,798 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:24:36,866 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:24:36,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 118 transitions, 252 flow [2023-11-12 02:24:36,960 INFO L124 PetriNetUnfolderBase]: 3/114 cut-off events. [2023-11-12 02:24:36,960 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:36,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 114 events. 3/114 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/101 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2023-11-12 02:24:36,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 118 transitions, 252 flow [2023-11-12 02:24:36,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 109 transitions, 230 flow [2023-11-12 02:24:36,975 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:24:36,990 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 109 transitions, 230 flow [2023-11-12 02:24:36,992 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 109 transitions, 230 flow [2023-11-12 02:24:36,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 119 places, 109 transitions, 230 flow [2023-11-12 02:24:37,041 INFO L124 PetriNetUnfolderBase]: 3/109 cut-off events. [2023-11-12 02:24:37,041 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:37,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 109 events. 3/109 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2023-11-12 02:24:37,046 INFO L119 LiptonReduction]: Number of co-enabled transitions 2602 [2023-11-12 02:24:40,805 INFO L134 LiptonReduction]: Checked pairs total: 4769 [2023-11-12 02:24:40,806 INFO L136 LiptonReduction]: Total number of compositions: 118 [2023-11-12 02:24:40,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:24:40,846 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;@125c6fb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:24:40,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-12 02:24:40,849 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:24:40,849 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-12 02:24:40,849 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:40,849 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:40,850 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-12 02:24:40,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:40,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:40,855 INFO L85 PathProgramCache]: Analyzing trace with hash 418, now seen corresponding path program 1 times [2023-11-12 02:24:40,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:40,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012834920] [2023-11-12 02:24:40,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:40,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:41,026 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 02:24:41,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:41,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012834920] [2023-11-12 02:24:41,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012834920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:41,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:41,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 02:24:41,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990550317] [2023-11-12 02:24:41,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:41,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:24:41,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:41,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:24:41,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:24:41,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 236 [2023-11-12 02:24:41,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 30 transitions, 72 flow. Second operand has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:41,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:41,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 236 [2023-11-12 02:24:41,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:41,425 INFO L124 PetriNetUnfolderBase]: 920/1343 cut-off events. [2023-11-12 02:24:41,426 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-12 02:24:41,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2752 conditions, 1343 events. 920/1343 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 5795 event pairs, 920 based on Foata normal form. 0/1252 useless extension candidates. Maximal degree in co-relation 2740. Up to 1324 conditions per place. [2023-11-12 02:24:41,449 INFO L140 encePairwiseOnDemand]: 227/236 looper letters, 19 selfloop transitions, 0 changer transitions 0/21 dead transitions. [2023-11-12 02:24:41,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 21 transitions, 92 flow [2023-11-12 02:24:41,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:24:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:24:41,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 248 transitions. [2023-11-12 02:24:41,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5254237288135594 [2023-11-12 02:24:41,472 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 248 transitions. [2023-11-12 02:24:41,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 248 transitions. [2023-11-12 02:24:41,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:41,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 248 transitions. [2023-11-12 02:24:41,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 124.0) internal successors, (248), 2 states have internal predecessors, (248), 0 states have call successors, (0), 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 02:24:41,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 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 02:24:41,491 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 236.0) internal successors, (708), 3 states have internal predecessors, (708), 0 states have call successors, (0), 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 02:24:41,493 INFO L175 Difference]: Start difference. First operand has 42 places, 30 transitions, 72 flow. Second operand 2 states and 248 transitions. [2023-11-12 02:24:41,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 21 transitions, 92 flow [2023-11-12 02:24:41,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 21 transitions, 88 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:24:41,500 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 50 flow [2023-11-12 02:24:41,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=50, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-11-12 02:24:41,506 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -11 predicate places. [2023-11-12 02:24:41,506 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 50 flow [2023-11-12 02:24:41,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:41,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:41,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:41,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:24:41,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:41,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:41,509 INFO L85 PathProgramCache]: Analyzing trace with hash -318972681, now seen corresponding path program 1 times [2023-11-12 02:24:41,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:41,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381809021] [2023-11-12 02:24:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:41,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:42,084 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 02:24:42,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:42,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381809021] [2023-11-12 02:24:42,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381809021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:42,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:42,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:24:42,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161244974] [2023-11-12 02:24:42,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:42,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:24:42,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:42,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:24:42,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:24:42,113 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:42,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 02:24:42,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:42,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:42,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:42,606 INFO L124 PetriNetUnfolderBase]: 2770/3973 cut-off events. [2023-11-12 02:24:42,606 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:24:42,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8143 conditions, 3973 events. 2770/3973 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 18992 event pairs, 1069 based on Foata normal form. 0/3838 useless extension candidates. Maximal degree in co-relation 8140. Up to 2293 conditions per place. [2023-11-12 02:24:42,642 INFO L140 encePairwiseOnDemand]: 227/236 looper letters, 31 selfloop transitions, 8 changer transitions 0/39 dead transitions. [2023-11-12 02:24:42,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 39 transitions, 170 flow [2023-11-12 02:24:42,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:24:42,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:24:42,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 340 transitions. [2023-11-12 02:24:42,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.480225988700565 [2023-11-12 02:24:42,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 340 transitions. [2023-11-12 02:24:42,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 340 transitions. [2023-11-12 02:24:42,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:42,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 340 transitions. [2023-11-12 02:24:42,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.33333333333333) internal successors, (340), 3 states have internal predecessors, (340), 0 states have call successors, (0), 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 02:24:42,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 0 states have call successors, (0), 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 02:24:42,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 0 states have call successors, (0), 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 02:24:42,662 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 50 flow. Second operand 3 states and 340 transitions. [2023-11-12 02:24:42,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 39 transitions, 170 flow [2023-11-12 02:24:42,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 170 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:24:42,664 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 112 flow [2023-11-12 02:24:42,664 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2023-11-12 02:24:42,666 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -7 predicate places. [2023-11-12 02:24:42,666 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 112 flow [2023-11-12 02:24:42,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 02:24:42,672 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:42,672 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:42,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:24:42,673 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:42,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:42,673 INFO L85 PathProgramCache]: Analyzing trace with hash -318972669, now seen corresponding path program 1 times [2023-11-12 02:24:42,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:42,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666525405] [2023-11-12 02:24:42,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:42,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:43,535 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 02:24:43,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:43,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666525405] [2023-11-12 02:24:43,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666525405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:43,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:43,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:24:43,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818408854] [2023-11-12 02:24:43,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:43,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:43,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:43,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:43,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:43,874 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 236 [2023-11-12 02:24:43,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 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 02:24:43,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:43,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 236 [2023-11-12 02:24:43,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:44,298 INFO L124 PetriNetUnfolderBase]: 1630/2455 cut-off events. [2023-11-12 02:24:44,298 INFO L125 PetriNetUnfolderBase]: For 1586/1606 co-relation queries the response was YES. [2023-11-12 02:24:44,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6615 conditions, 2455 events. 1630/2455 cut-off events. For 1586/1606 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 12118 event pairs, 416 based on Foata normal form. 238/2683 useless extension candidates. Maximal degree in co-relation 6610. Up to 2101 conditions per place. [2023-11-12 02:24:44,327 INFO L140 encePairwiseOnDemand]: 231/236 looper letters, 35 selfloop transitions, 4 changer transitions 0/43 dead transitions. [2023-11-12 02:24:44,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 43 transitions, 248 flow [2023-11-12 02:24:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:44,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:24:44,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 577 transitions. [2023-11-12 02:24:44,331 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4074858757062147 [2023-11-12 02:24:44,331 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 577 transitions. [2023-11-12 02:24:44,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 577 transitions. [2023-11-12 02:24:44,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:44,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 577 transitions. [2023-11-12 02:24:44,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 96.16666666666667) internal successors, (577), 6 states have internal predecessors, (577), 0 states have call successors, (0), 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 02:24:44,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 236.0) internal successors, (1652), 7 states have internal predecessors, (1652), 0 states have call successors, (0), 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 02:24:44,339 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 236.0) internal successors, (1652), 7 states have internal predecessors, (1652), 0 states have call successors, (0), 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 02:24:44,340 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 112 flow. Second operand 6 states and 577 transitions. [2023-11-12 02:24:44,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 43 transitions, 248 flow [2023-11-12 02:24:44,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 43 transitions, 222 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:24:44,351 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 96 flow [2023-11-12 02:24:44,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=32, 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=96, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2023-11-12 02:24:44,353 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -5 predicate places. [2023-11-12 02:24:44,354 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 96 flow [2023-11-12 02:24:44,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.66666666666667) internal successors, (556), 6 states have internal predecessors, (556), 0 states have call successors, (0), 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 02:24:44,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:44,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:44,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:24:44,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:44,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash -312088306, now seen corresponding path program 1 times [2023-11-12 02:24:44,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:44,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658818600] [2023-11-12 02:24:44,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:44,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:44,532 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 02:24:44,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:44,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658818600] [2023-11-12 02:24:44,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658818600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:44,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:44,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:24:44,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094286274] [2023-11-12 02:24:44,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:44,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:24:44,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:44,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:24:44,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:44,556 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:44,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 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 02:24:44,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:44,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:44,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:44,877 INFO L124 PetriNetUnfolderBase]: 1896/2775 cut-off events. [2023-11-12 02:24:44,878 INFO L125 PetriNetUnfolderBase]: For 687/687 co-relation queries the response was YES. [2023-11-12 02:24:44,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7135 conditions, 2775 events. 1896/2775 cut-off events. For 687/687 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 12404 event pairs, 271 based on Foata normal form. 21/2796 useless extension candidates. Maximal degree in co-relation 7130. Up to 1410 conditions per place. [2023-11-12 02:24:44,904 INFO L140 encePairwiseOnDemand]: 228/236 looper letters, 38 selfloop transitions, 11 changer transitions 0/49 dead transitions. [2023-11-12 02:24:44,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 49 transitions, 270 flow [2023-11-12 02:24:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:24:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:24:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 445 transitions. [2023-11-12 02:24:44,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4713983050847458 [2023-11-12 02:24:44,907 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 445 transitions. [2023-11-12 02:24:44,907 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 445 transitions. [2023-11-12 02:24:44,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:44,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 445 transitions. [2023-11-12 02:24:44,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 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 02:24:44,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:44,913 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:44,913 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 96 flow. Second operand 4 states and 445 transitions. [2023-11-12 02:24:44,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 49 transitions, 270 flow [2023-11-12 02:24:44,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 49 transitions, 261 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-12 02:24:44,917 INFO L231 Difference]: Finished difference. Result has 39 places, 34 transitions, 179 flow [2023-11-12 02:24:44,917 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=179, PETRI_PLACES=39, PETRI_TRANSITIONS=34} [2023-11-12 02:24:44,919 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -3 predicate places. [2023-11-12 02:24:44,919 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 34 transitions, 179 flow [2023-11-12 02:24:44,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 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 02:24:44,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:44,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:44,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:24:44,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:44,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:44,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1298221117, now seen corresponding path program 1 times [2023-11-12 02:24:44,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:44,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190581835] [2023-11-12 02:24:44,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:44,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:45,104 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 02:24:45,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:45,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190581835] [2023-11-12 02:24:45,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190581835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:45,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:45,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:24:45,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788035107] [2023-11-12 02:24:45,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:45,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:24:45,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:45,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:24:45,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:45,132 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:45,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 34 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 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 02:24:45,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:45,134 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:45,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:45,473 INFO L124 PetriNetUnfolderBase]: 1797/2638 cut-off events. [2023-11-12 02:24:45,474 INFO L125 PetriNetUnfolderBase]: For 2513/2513 co-relation queries the response was YES. [2023-11-12 02:24:45,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8078 conditions, 2638 events. 1797/2638 cut-off events. For 2513/2513 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 12009 event pairs, 275 based on Foata normal form. 18/2656 useless extension candidates. Maximal degree in co-relation 8071. Up to 1463 conditions per place. [2023-11-12 02:24:45,503 INFO L140 encePairwiseOnDemand]: 228/236 looper letters, 50 selfloop transitions, 18 changer transitions 0/68 dead transitions. [2023-11-12 02:24:45,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 68 transitions, 467 flow [2023-11-12 02:24:45,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:24:45,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:24:45,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 451 transitions. [2023-11-12 02:24:45,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777542372881356 [2023-11-12 02:24:45,506 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 451 transitions. [2023-11-12 02:24:45,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 451 transitions. [2023-11-12 02:24:45,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:45,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 451 transitions. [2023-11-12 02:24:45,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 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 02:24:45,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:45,513 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:45,513 INFO L175 Difference]: Start difference. First operand has 39 places, 34 transitions, 179 flow. Second operand 4 states and 451 transitions. [2023-11-12 02:24:45,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 68 transitions, 467 flow [2023-11-12 02:24:45,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 467 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:24:45,531 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 351 flow [2023-11-12 02:24:45,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=351, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2023-11-12 02:24:45,533 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2023-11-12 02:24:45,534 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 351 flow [2023-11-12 02:24:45,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.75) internal successors, (411), 4 states have internal predecessors, (411), 0 states have call successors, (0), 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 02:24:45,534 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:45,534 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:45,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:24:45,535 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:45,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:45,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1590122731, now seen corresponding path program 1 times [2023-11-12 02:24:45,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:45,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954822900] [2023-11-12 02:24:45,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:45,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:45,725 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 02:24:45,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:45,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954822900] [2023-11-12 02:24:45,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954822900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:45,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:45,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:24:45,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447881187] [2023-11-12 02:24:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:45,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:24:45,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:45,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:24:45,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:45,752 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:45,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 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 02:24:45,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:45,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:45,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:46,100 INFO L124 PetriNetUnfolderBase]: 1729/2542 cut-off events. [2023-11-12 02:24:46,100 INFO L125 PetriNetUnfolderBase]: For 5691/5691 co-relation queries the response was YES. [2023-11-12 02:24:46,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9129 conditions, 2542 events. 1729/2542 cut-off events. For 5691/5691 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11446 event pairs, 419 based on Foata normal form. 20/2562 useless extension candidates. Maximal degree in co-relation 9119. Up to 1295 conditions per place. [2023-11-12 02:24:46,174 INFO L140 encePairwiseOnDemand]: 228/236 looper letters, 57 selfloop transitions, 21 changer transitions 0/78 dead transitions. [2023-11-12 02:24:46,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 78 transitions, 667 flow [2023-11-12 02:24:46,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:24:46,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:24:46,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 451 transitions. [2023-11-12 02:24:46,179 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4777542372881356 [2023-11-12 02:24:46,179 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 451 transitions. [2023-11-12 02:24:46,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 451 transitions. [2023-11-12 02:24:46,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:46,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 451 transitions. [2023-11-12 02:24:46,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 112.75) internal successors, (451), 4 states have internal predecessors, (451), 0 states have call successors, (0), 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 02:24:46,185 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:46,185 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:46,186 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 351 flow. Second operand 4 states and 451 transitions. [2023-11-12 02:24:46,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 78 transitions, 667 flow [2023-11-12 02:24:46,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 78 transitions, 667 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:24:46,211 INFO L231 Difference]: Finished difference. Result has 51 places, 53 transitions, 529 flow [2023-11-12 02:24:46,211 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=529, PETRI_PLACES=51, PETRI_TRANSITIONS=53} [2023-11-12 02:24:46,214 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2023-11-12 02:24:46,214 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 53 transitions, 529 flow [2023-11-12 02:24:46,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.0) internal successors, (412), 4 states have internal predecessors, (412), 0 states have call successors, (0), 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 02:24:46,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:46,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:46,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:24:46,215 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:46,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:46,216 INFO L85 PathProgramCache]: Analyzing trace with hash -2049469718, now seen corresponding path program 1 times [2023-11-12 02:24:46,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:46,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15154170] [2023-11-12 02:24:46,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:46,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:46,409 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 02:24:46,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:46,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15154170] [2023-11-12 02:24:46,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15154170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:46,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:46,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:24:46,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111633760] [2023-11-12 02:24:46,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:46,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:24:46,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:46,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:24:46,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:46,430 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:46,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 53 transitions, 529 flow. Second operand has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 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 02:24:46,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:46,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:46,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:46,897 INFO L124 PetriNetUnfolderBase]: 1969/2942 cut-off events. [2023-11-12 02:24:46,898 INFO L125 PetriNetUnfolderBase]: For 11534/11534 co-relation queries the response was YES. [2023-11-12 02:24:46,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11490 conditions, 2942 events. 1969/2942 cut-off events. For 11534/11534 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 14064 event pairs, 482 based on Foata normal form. 48/2990 useless extension candidates. Maximal degree in co-relation 11477. Up to 1288 conditions per place. [2023-11-12 02:24:46,922 INFO L140 encePairwiseOnDemand]: 228/236 looper letters, 50 selfloop transitions, 29 changer transitions 1/80 dead transitions. [2023-11-12 02:24:46,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 80 transitions, 807 flow [2023-11-12 02:24:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:24:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:24:46,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 452 transitions. [2023-11-12 02:24:46,925 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4788135593220339 [2023-11-12 02:24:46,925 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 452 transitions. [2023-11-12 02:24:46,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 452 transitions. [2023-11-12 02:24:46,926 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:46,926 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 452 transitions. [2023-11-12 02:24:46,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 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 02:24:46,929 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:46,930 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:46,930 INFO L175 Difference]: Start difference. First operand has 51 places, 53 transitions, 529 flow. Second operand 4 states and 452 transitions. [2023-11-12 02:24:46,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 80 transitions, 807 flow [2023-11-12 02:24:46,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 80 transitions, 802 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:24:46,970 INFO L231 Difference]: Finished difference. Result has 56 places, 55 transitions, 682 flow [2023-11-12 02:24:46,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=682, PETRI_PLACES=56, PETRI_TRANSITIONS=55} [2023-11-12 02:24:46,971 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2023-11-12 02:24:46,971 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 55 transitions, 682 flow [2023-11-12 02:24:46,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.25) internal successors, (413), 4 states have internal predecessors, (413), 0 states have call successors, (0), 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 02:24:46,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:46,972 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:46,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:24:46,972 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:46,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:46,973 INFO L85 PathProgramCache]: Analyzing trace with hash -2049406292, now seen corresponding path program 1 times [2023-11-12 02:24:46,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:46,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578918017] [2023-11-12 02:24:46,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:46,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:47,102 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 02:24:47,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:47,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578918017] [2023-11-12 02:24:47,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578918017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:47,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:47,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:24:47,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402834099] [2023-11-12 02:24:47,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:47,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:24:47,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:47,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:24:47,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:24:47,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:47,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 682 flow. Second operand has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:47,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:47,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:47,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:47,668 INFO L124 PetriNetUnfolderBase]: 2629/3962 cut-off events. [2023-11-12 02:24:47,668 INFO L125 PetriNetUnfolderBase]: For 19981/19981 co-relation queries the response was YES. [2023-11-12 02:24:47,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16418 conditions, 3962 events. 2629/3962 cut-off events. For 19981/19981 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 20202 event pairs, 503 based on Foata normal form. 60/4022 useless extension candidates. Maximal degree in co-relation 16402. Up to 1828 conditions per place. [2023-11-12 02:24:47,701 INFO L140 encePairwiseOnDemand]: 228/236 looper letters, 49 selfloop transitions, 17 changer transitions 28/94 dead transitions. [2023-11-12 02:24:47,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 94 transitions, 1172 flow [2023-11-12 02:24:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:24:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:24:47,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 556 transitions. [2023-11-12 02:24:47,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4711864406779661 [2023-11-12 02:24:47,705 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 556 transitions. [2023-11-12 02:24:47,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 556 transitions. [2023-11-12 02:24:47,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:47,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 556 transitions. [2023-11-12 02:24:47,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 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 02:24:47,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 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 02:24:47,711 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 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 02:24:47,712 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 682 flow. Second operand 5 states and 556 transitions. [2023-11-12 02:24:47,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 94 transitions, 1172 flow [2023-11-12 02:24:47,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 94 transitions, 1158 flow, removed 7 selfloop flow, removed 0 redundant places. [2023-11-12 02:24:47,766 INFO L231 Difference]: Finished difference. Result has 61 places, 44 transitions, 538 flow [2023-11-12 02:24:47,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=676, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=538, PETRI_PLACES=61, PETRI_TRANSITIONS=44} [2023-11-12 02:24:47,767 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2023-11-12 02:24:47,767 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 44 transitions, 538 flow [2023-11-12 02:24:47,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 102.6) internal successors, (513), 5 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:24:47,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:47,768 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:47,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:24:47,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:47,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1917812410, now seen corresponding path program 2 times [2023-11-12 02:24:47,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:47,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983745986] [2023-11-12 02:24:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:47,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:47,871 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 02:24:47,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:47,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983745986] [2023-11-12 02:24:47,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983745986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:47,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:47,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:24:47,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497143506] [2023-11-12 02:24:47,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:47,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:24:47,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:47,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:24:47,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:24:47,878 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 236 [2023-11-12 02:24:47,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 44 transitions, 538 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 02:24:47,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:47,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 236 [2023-11-12 02:24:47,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:48,129 INFO L124 PetriNetUnfolderBase]: 1105/1794 cut-off events. [2023-11-12 02:24:48,129 INFO L125 PetriNetUnfolderBase]: For 10183/10202 co-relation queries the response was YES. [2023-11-12 02:24:48,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7838 conditions, 1794 events. 1105/1794 cut-off events. For 10183/10202 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 9187 event pairs, 432 based on Foata normal form. 23/1797 useless extension candidates. Maximal degree in co-relation 7820. Up to 1474 conditions per place. [2023-11-12 02:24:48,148 INFO L140 encePairwiseOnDemand]: 233/236 looper letters, 38 selfloop transitions, 4 changer transitions 0/54 dead transitions. [2023-11-12 02:24:48,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 54 transitions, 688 flow [2023-11-12 02:24:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:24:48,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:24:48,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 352 transitions. [2023-11-12 02:24:48,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4971751412429379 [2023-11-12 02:24:48,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 352 transitions. [2023-11-12 02:24:48,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 352 transitions. [2023-11-12 02:24:48,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:48,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 352 transitions. [2023-11-12 02:24:48,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 0 states have call successors, (0), 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 02:24:48,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 0 states have call successors, (0), 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 02:24:48,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 0 states have call successors, (0), 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 02:24:48,156 INFO L175 Difference]: Start difference. First operand has 61 places, 44 transitions, 538 flow. Second operand 3 states and 352 transitions. [2023-11-12 02:24:48,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 54 transitions, 688 flow [2023-11-12 02:24:48,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 616 flow, removed 3 selfloop flow, removed 6 redundant places. [2023-11-12 02:24:48,177 INFO L231 Difference]: Finished difference. Result has 58 places, 44 transitions, 489 flow [2023-11-12 02:24:48,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=489, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2023-11-12 02:24:48,178 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 16 predicate places. [2023-11-12 02:24:48,179 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 489 flow [2023-11-12 02:24:48,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 02:24:48,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:48,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:48,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:24:48,180 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:48,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:48,180 INFO L85 PathProgramCache]: Analyzing trace with hash 677907101, now seen corresponding path program 1 times [2023-11-12 02:24:48,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:48,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984359134] [2023-11-12 02:24:48,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:48,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:48,296 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 02:24:48,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:48,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984359134] [2023-11-12 02:24:48,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984359134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:48,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:48,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:24:48,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511240489] [2023-11-12 02:24:48,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:48,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:24:48,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:48,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:24:48,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:48,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:48,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 489 flow. Second operand has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 02:24:48,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:48,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:48,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:48,681 INFO L124 PetriNetUnfolderBase]: 1531/2336 cut-off events. [2023-11-12 02:24:48,682 INFO L125 PetriNetUnfolderBase]: For 9479/9479 co-relation queries the response was YES. [2023-11-12 02:24:48,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9231 conditions, 2336 events. 1531/2336 cut-off events. For 9479/9479 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 11280 event pairs, 376 based on Foata normal form. 36/2372 useless extension candidates. Maximal degree in co-relation 9213. Up to 1140 conditions per place. [2023-11-12 02:24:48,703 INFO L140 encePairwiseOnDemand]: 229/236 looper letters, 42 selfloop transitions, 16 changer transitions 7/65 dead transitions. [2023-11-12 02:24:48,703 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 731 flow [2023-11-12 02:24:48,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:24:48,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:24:48,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 445 transitions. [2023-11-12 02:24:48,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4713983050847458 [2023-11-12 02:24:48,707 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 445 transitions. [2023-11-12 02:24:48,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 445 transitions. [2023-11-12 02:24:48,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:48,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 445 transitions. [2023-11-12 02:24:48,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 111.25) internal successors, (445), 4 states have internal predecessors, (445), 0 states have call successors, (0), 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 02:24:48,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:48,713 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:48,713 INFO L175 Difference]: Start difference. First operand has 58 places, 44 transitions, 489 flow. Second operand 4 states and 445 transitions. [2023-11-12 02:24:48,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 731 flow [2023-11-12 02:24:48,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 65 transitions, 723 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:24:48,737 INFO L231 Difference]: Finished difference. Result has 62 places, 40 transitions, 494 flow [2023-11-12 02:24:48,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=494, PETRI_PLACES=62, PETRI_TRANSITIONS=40} [2023-11-12 02:24:48,738 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2023-11-12 02:24:48,738 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 40 transitions, 494 flow [2023-11-12 02:24:48,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.5) internal successors, (414), 4 states have internal predecessors, (414), 0 states have call successors, (0), 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 02:24:48,739 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:48,739 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:48,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:24:48,739 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:48,740 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:48,740 INFO L85 PathProgramCache]: Analyzing trace with hash 900926220, now seen corresponding path program 1 times [2023-11-12 02:24:48,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:48,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117087854] [2023-11-12 02:24:48,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:48,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:48,866 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 02:24:48,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:48,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117087854] [2023-11-12 02:24:48,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117087854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:48,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:48,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:24:48,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767248449] [2023-11-12 02:24:48,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:48,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:24:48,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:48,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:24:48,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:24:48,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 236 [2023-11-12 02:24:48,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 40 transitions, 494 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 02:24:48,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:48,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 236 [2023-11-12 02:24:48,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:49,072 INFO L124 PetriNetUnfolderBase]: 824/1357 cut-off events. [2023-11-12 02:24:49,072 INFO L125 PetriNetUnfolderBase]: For 7840/7887 co-relation queries the response was YES. [2023-11-12 02:24:49,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5391 conditions, 1357 events. 824/1357 cut-off events. For 7840/7887 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 6881 event pairs, 296 based on Foata normal form. 58/1383 useless extension candidates. Maximal degree in co-relation 5371. Up to 1213 conditions per place. [2023-11-12 02:24:49,089 INFO L140 encePairwiseOnDemand]: 230/236 looper letters, 50 selfloop transitions, 5 changer transitions 0/63 dead transitions. [2023-11-12 02:24:49,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 63 transitions, 847 flow [2023-11-12 02:24:49,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:24:49,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:24:49,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 346 transitions. [2023-11-12 02:24:49,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4887005649717514 [2023-11-12 02:24:49,091 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 346 transitions. [2023-11-12 02:24:49,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 346 transitions. [2023-11-12 02:24:49,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:49,092 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 346 transitions. [2023-11-12 02:24:49,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 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 02:24:49,095 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 0 states have call successors, (0), 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 02:24:49,095 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 236.0) internal successors, (944), 4 states have internal predecessors, (944), 0 states have call successors, (0), 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 02:24:49,096 INFO L175 Difference]: Start difference. First operand has 62 places, 40 transitions, 494 flow. Second operand 3 states and 346 transitions. [2023-11-12 02:24:49,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 63 transitions, 847 flow [2023-11-12 02:24:49,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 63 transitions, 770 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-12 02:24:49,111 INFO L231 Difference]: Finished difference. Result has 62 places, 44 transitions, 477 flow [2023-11-12 02:24:49,111 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=477, PETRI_PLACES=62, PETRI_TRANSITIONS=44} [2023-11-12 02:24:49,111 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2023-11-12 02:24:49,112 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 44 transitions, 477 flow [2023-11-12 02:24:49,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 02:24:49,112 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:49,112 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:49,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:24:49,113 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:49,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:49,113 INFO L85 PathProgramCache]: Analyzing trace with hash -194058612, now seen corresponding path program 1 times [2023-11-12 02:24:49,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:49,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434336065] [2023-11-12 02:24:49,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:49,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:49,208 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 02:24:49,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:49,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434336065] [2023-11-12 02:24:49,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434336065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:49,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:49,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:24:49,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931337553] [2023-11-12 02:24:49,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:49,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:24:49,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:49,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:24:49,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:24:49,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 236 [2023-11-12 02:24:49,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 44 transitions, 477 flow. Second operand has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 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 02:24:49,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:49,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 236 [2023-11-12 02:24:49,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:49,413 INFO L124 PetriNetUnfolderBase]: 571/987 cut-off events. [2023-11-12 02:24:49,413 INFO L125 PetriNetUnfolderBase]: For 4089/4198 co-relation queries the response was YES. [2023-11-12 02:24:49,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4491 conditions, 987 events. 571/987 cut-off events. For 4089/4198 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4952 event pairs, 73 based on Foata normal form. 109/1074 useless extension candidates. Maximal degree in co-relation 4470. Up to 653 conditions per place. [2023-11-12 02:24:49,422 INFO L140 encePairwiseOnDemand]: 230/236 looper letters, 63 selfloop transitions, 9 changer transitions 0/80 dead transitions. [2023-11-12 02:24:49,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 80 transitions, 995 flow [2023-11-12 02:24:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:24:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:24:49,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 461 transitions. [2023-11-12 02:24:49,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4883474576271186 [2023-11-12 02:24:49,425 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 461 transitions. [2023-11-12 02:24:49,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 461 transitions. [2023-11-12 02:24:49,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:49,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 461 transitions. [2023-11-12 02:24:49,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 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 02:24:49,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:49,430 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:49,430 INFO L175 Difference]: Start difference. First operand has 62 places, 44 transitions, 477 flow. Second operand 4 states and 461 transitions. [2023-11-12 02:24:49,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 80 transitions, 995 flow [2023-11-12 02:24:49,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 80 transitions, 956 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:24:49,441 INFO L231 Difference]: Finished difference. Result has 64 places, 48 transitions, 505 flow [2023-11-12 02:24:49,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=453, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=505, PETRI_PLACES=64, PETRI_TRANSITIONS=48} [2023-11-12 02:24:49,442 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2023-11-12 02:24:49,442 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 48 transitions, 505 flow [2023-11-12 02:24:49,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 0 states have call successors, (0), 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 02:24:49,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:49,443 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:49,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:24:49,443 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:49,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:49,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1720882809, now seen corresponding path program 1 times [2023-11-12 02:24:49,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:49,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752329600] [2023-11-12 02:24:49,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:49,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:49,556 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 02:24:49,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752329600] [2023-11-12 02:24:49,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752329600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:49,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:49,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:24:49,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678776283] [2023-11-12 02:24:49,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:49,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:24:49,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:49,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:24:49,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:24:49,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 236 [2023-11-12 02:24:49,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 48 transitions, 505 flow. Second operand has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 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 02:24:49,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:49,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 236 [2023-11-12 02:24:49,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:49,731 INFO L124 PetriNetUnfolderBase]: 419/738 cut-off events. [2023-11-12 02:24:49,732 INFO L125 PetriNetUnfolderBase]: For 2925/3147 co-relation queries the response was YES. [2023-11-12 02:24:49,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3919 conditions, 738 events. 419/738 cut-off events. For 2925/3147 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3525 event pairs, 24 based on Foata normal form. 131/848 useless extension candidates. Maximal degree in co-relation 3897. Up to 427 conditions per place. [2023-11-12 02:24:49,739 INFO L140 encePairwiseOnDemand]: 230/236 looper letters, 69 selfloop transitions, 13 changer transitions 4/93 dead transitions. [2023-11-12 02:24:49,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 93 transitions, 1128 flow [2023-11-12 02:24:49,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:24:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:24:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 576 transitions. [2023-11-12 02:24:49,742 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.488135593220339 [2023-11-12 02:24:49,742 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 576 transitions. [2023-11-12 02:24:49,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 576 transitions. [2023-11-12 02:24:49,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:49,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 576 transitions. [2023-11-12 02:24:49,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 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 02:24:49,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 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 02:24:49,748 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 236.0) internal successors, (1416), 6 states have internal predecessors, (1416), 0 states have call successors, (0), 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 02:24:49,748 INFO L175 Difference]: Start difference. First operand has 64 places, 48 transitions, 505 flow. Second operand 5 states and 576 transitions. [2023-11-12 02:24:49,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 93 transitions, 1128 flow [2023-11-12 02:24:49,756 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 93 transitions, 1110 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-11-12 02:24:49,758 INFO L231 Difference]: Finished difference. Result has 67 places, 51 transitions, 547 flow [2023-11-12 02:24:49,758 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=547, PETRI_PLACES=67, PETRI_TRANSITIONS=51} [2023-11-12 02:24:49,759 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 25 predicate places. [2023-11-12 02:24:49,759 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 51 transitions, 547 flow [2023-11-12 02:24:49,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 108.2) internal successors, (541), 5 states have internal predecessors, (541), 0 states have call successors, (0), 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 02:24:49,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:49,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:49,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-12 02:24:49,760 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:49,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:49,761 INFO L85 PathProgramCache]: Analyzing trace with hash 524788025, now seen corresponding path program 1 times [2023-11-12 02:24:49,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:49,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258921775] [2023-11-12 02:24:49,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:49,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:49,893 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 02:24:49,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:49,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258921775] [2023-11-12 02:24:49,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258921775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:49,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:49,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:24:49,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171004448] [2023-11-12 02:24:49,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:49,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:24:49,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:49,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:24:49,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:24:49,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:49,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 51 transitions, 547 flow. Second operand has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 0 states have call successors, (0), 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 02:24:49,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:49,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:49,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:50,138 INFO L124 PetriNetUnfolderBase]: 569/1004 cut-off events. [2023-11-12 02:24:50,139 INFO L125 PetriNetUnfolderBase]: For 6058/6058 co-relation queries the response was YES. [2023-11-12 02:24:50,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5706 conditions, 1004 events. 569/1004 cut-off events. For 6058/6058 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4799 event pairs, 66 based on Foata normal form. 6/1010 useless extension candidates. Maximal degree in co-relation 5683. Up to 468 conditions per place. [2023-11-12 02:24:50,147 INFO L140 encePairwiseOnDemand]: 228/236 looper letters, 53 selfloop transitions, 14 changer transitions 62/129 dead transitions. [2023-11-12 02:24:50,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 129 transitions, 1431 flow [2023-11-12 02:24:50,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:50,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:24:50,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 660 transitions. [2023-11-12 02:24:50,151 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4661016949152542 [2023-11-12 02:24:50,151 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 660 transitions. [2023-11-12 02:24:50,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 660 transitions. [2023-11-12 02:24:50,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:50,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 660 transitions. [2023-11-12 02:24:50,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 110.0) internal successors, (660), 6 states have internal predecessors, (660), 0 states have call successors, (0), 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 02:24:50,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 236.0) internal successors, (1652), 7 states have internal predecessors, (1652), 0 states have call successors, (0), 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 02:24:50,158 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 236.0) internal successors, (1652), 7 states have internal predecessors, (1652), 0 states have call successors, (0), 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 02:24:50,158 INFO L175 Difference]: Start difference. First operand has 67 places, 51 transitions, 547 flow. Second operand 6 states and 660 transitions. [2023-11-12 02:24:50,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 129 transitions, 1431 flow [2023-11-12 02:24:50,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 129 transitions, 1266 flow, removed 39 selfloop flow, removed 4 redundant places. [2023-11-12 02:24:50,177 INFO L231 Difference]: Finished difference. Result has 70 places, 45 transitions, 458 flow [2023-11-12 02:24:50,177 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=458, PETRI_PLACES=70, PETRI_TRANSITIONS=45} [2023-11-12 02:24:50,178 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 28 predicate places. [2023-11-12 02:24:50,178 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 45 transitions, 458 flow [2023-11-12 02:24:50,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 103.6) internal successors, (518), 5 states have internal predecessors, (518), 0 states have call successors, (0), 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 02:24:50,179 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:50,179 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:50,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:24:50,179 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:50,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:50,180 INFO L85 PathProgramCache]: Analyzing trace with hash 341806421, now seen corresponding path program 2 times [2023-11-12 02:24:50,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:50,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238954704] [2023-11-12 02:24:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:50,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:50,298 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 02:24:50,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:50,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238954704] [2023-11-12 02:24:50,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238954704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:50,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:50,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:50,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397138448] [2023-11-12 02:24:50,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:50,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:50,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:50,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:50,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:50,312 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 236 [2023-11-12 02:24:50,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 45 transitions, 458 flow. Second operand has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 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 02:24:50,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:50,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 236 [2023-11-12 02:24:50,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:50,449 INFO L124 PetriNetUnfolderBase]: 225/418 cut-off events. [2023-11-12 02:24:50,449 INFO L125 PetriNetUnfolderBase]: For 2115/2223 co-relation queries the response was YES. [2023-11-12 02:24:50,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2150 conditions, 418 events. 225/418 cut-off events. For 2115/2223 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1761 event pairs, 12 based on Foata normal form. 70/477 useless extension candidates. Maximal degree in co-relation 2126. Up to 134 conditions per place. [2023-11-12 02:24:50,452 INFO L140 encePairwiseOnDemand]: 230/236 looper letters, 21 selfloop transitions, 17 changer transitions 34/74 dead transitions. [2023-11-12 02:24:50,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 74 transitions, 906 flow [2023-11-12 02:24:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:24:50,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:24:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 678 transitions. [2023-11-12 02:24:50,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4788135593220339 [2023-11-12 02:24:50,455 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 678 transitions. [2023-11-12 02:24:50,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 678 transitions. [2023-11-12 02:24:50,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:50,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 678 transitions. [2023-11-12 02:24:50,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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 02:24:50,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 236.0) internal successors, (1652), 7 states have internal predecessors, (1652), 0 states have call successors, (0), 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 02:24:50,462 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 236.0) internal successors, (1652), 7 states have internal predecessors, (1652), 0 states have call successors, (0), 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 02:24:50,462 INFO L175 Difference]: Start difference. First operand has 70 places, 45 transitions, 458 flow. Second operand 6 states and 678 transitions. [2023-11-12 02:24:50,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 74 transitions, 906 flow [2023-11-12 02:24:50,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 74 transitions, 774 flow, removed 4 selfloop flow, removed 10 redundant places. [2023-11-12 02:24:50,472 INFO L231 Difference]: Finished difference. Result has 64 places, 32 transitions, 273 flow [2023-11-12 02:24:50,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=273, PETRI_PLACES=64, PETRI_TRANSITIONS=32} [2023-11-12 02:24:50,473 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 22 predicate places. [2023-11-12 02:24:50,473 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 32 transitions, 273 flow [2023-11-12 02:24:50,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.83333333333333) internal successors, (647), 6 states have internal predecessors, (647), 0 states have call successors, (0), 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 02:24:50,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:24:50,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:50,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-12 02:24:50,474 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2023-11-12 02:24:50,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:50,475 INFO L85 PathProgramCache]: Analyzing trace with hash -97335279, now seen corresponding path program 1 times [2023-11-12 02:24:50,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:50,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498988357] [2023-11-12 02:24:50,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:50,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:50,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:50,615 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 02:24:50,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:50,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498988357] [2023-11-12 02:24:50,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498988357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:50,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:50,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:24:50,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333541141] [2023-11-12 02:24:50,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:50,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:24:50,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:50,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:24:50,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:24:50,636 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 236 [2023-11-12 02:24:50,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 32 transitions, 273 flow. Second operand has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 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 02:24:50,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:24:50,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 236 [2023-11-12 02:24:50,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:24:50,685 INFO L124 PetriNetUnfolderBase]: 44/94 cut-off events. [2023-11-12 02:24:50,685 INFO L125 PetriNetUnfolderBase]: For 483/483 co-relation queries the response was YES. [2023-11-12 02:24:50,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 94 events. 44/94 cut-off events. For 483/483 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 181 event pairs, 14 based on Foata normal form. 1/95 useless extension candidates. Maximal degree in co-relation 524. Up to 57 conditions per place. [2023-11-12 02:24:50,686 INFO L140 encePairwiseOnDemand]: 233/236 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2023-11-12 02:24:50,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 35 transitions, 367 flow [2023-11-12 02:24:50,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:24:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-12 02:24:50,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 422 transitions. [2023-11-12 02:24:50,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4470338983050847 [2023-11-12 02:24:50,689 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 422 transitions. [2023-11-12 02:24:50,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 422 transitions. [2023-11-12 02:24:50,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:24:50,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 422 transitions. [2023-11-12 02:24:50,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 105.5) internal successors, (422), 4 states have internal predecessors, (422), 0 states have call successors, (0), 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 02:24:50,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:50,694 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 236.0) internal successors, (1180), 5 states have internal predecessors, (1180), 0 states have call successors, (0), 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 02:24:50,694 INFO L175 Difference]: Start difference. First operand has 64 places, 32 transitions, 273 flow. Second operand 4 states and 422 transitions. [2023-11-12 02:24:50,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 35 transitions, 367 flow [2023-11-12 02:24:50,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 35 transitions, 241 flow, removed 18 selfloop flow, removed 23 redundant places. [2023-11-12 02:24:50,697 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-11-12 02:24:50,697 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=236, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-11-12 02:24:50,698 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2023-11-12 02:24:50,698 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-11-12 02:24:50,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 104.0) internal successors, (520), 5 states have internal predecessors, (520), 0 states have call successors, (0), 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 02:24:50,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 14 remaining) [2023-11-12 02:24:50,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2023-11-12 02:24:50,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2023-11-12 02:24:50,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2023-11-12 02:24:50,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2023-11-12 02:24:50,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2023-11-12 02:24:50,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2023-11-12 02:24:50,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2023-11-12 02:24:50,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (5 of 14 remaining) [2023-11-12 02:24:50,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (4 of 14 remaining) [2023-11-12 02:24:50,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 14 remaining) [2023-11-12 02:24:50,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 14 remaining) [2023-11-12 02:24:50,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 14 remaining) [2023-11-12 02:24:50,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 14 remaining) [2023-11-12 02:24:50,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-12 02:24:50,706 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:24:50,709 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 02:24:50,709 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:24:50,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:24:50 BasicIcfg [2023-11-12 02:24:50,713 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:24:50,714 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:24:50,714 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:24:50,714 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:24:50,714 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:24:36" (3/4) ... [2023-11-12 02:24:50,716 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:24:50,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2023-11-12 02:24:50,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2023-11-12 02:24:50,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2023-11-12 02:24:50,721 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2023-11-12 02:24:50,727 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:24:50,727 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:24:50,727 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:24:50,727 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:24:50,805 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:24:50,806 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:24:50,806 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:24:50,806 INFO L158 Benchmark]: Toolchain (without parser) took 15444.68ms. Allocated memory was 130.0MB in the beginning and 388.0MB in the end (delta: 257.9MB). Free memory was 69.1MB in the beginning and 254.7MB in the end (delta: -185.6MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2023-11-12 02:24:50,807 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:24:50,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 669.53ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 117.6MB in the end (delta: -48.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-11-12 02:24:50,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.98ms. Allocated memory is still 163.6MB. Free memory was 117.6MB in the beginning and 115.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:24:50,808 INFO L158 Benchmark]: Boogie Preprocessor took 64.97ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 113.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:24:50,808 INFO L158 Benchmark]: RCFGBuilder took 585.80ms. Allocated memory is still 163.6MB. Free memory was 113.9MB in the beginning and 98.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:24:50,809 INFO L158 Benchmark]: TraceAbstraction took 13938.36ms. Allocated memory was 163.6MB in the beginning and 388.0MB in the end (delta: 224.4MB). Free memory was 97.6MB in the beginning and 259.9MB in the end (delta: -162.3MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2023-11-12 02:24:50,809 INFO L158 Benchmark]: Witness Printer took 92.12ms. Allocated memory is still 388.0MB. Free memory was 259.9MB in the beginning and 254.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:24:50,811 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 669.53ms. Allocated memory was 130.0MB in the beginning and 163.6MB in the end (delta: 33.6MB). Free memory was 68.7MB in the beginning and 117.6MB in the end (delta: -48.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.98ms. Allocated memory is still 163.6MB. Free memory was 117.6MB in the beginning and 115.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.97ms. Allocated memory is still 163.6MB. Free memory was 115.4MB in the beginning and 113.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.80ms. Allocated memory is still 163.6MB. Free memory was 113.9MB in the beginning and 98.3MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13938.36ms. Allocated memory was 163.6MB in the beginning and 388.0MB in the end (delta: 224.4MB). Free memory was 97.6MB in the beginning and 259.9MB in the end (delta: -162.3MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * Witness Printer took 92.12ms. Allocated memory is still 388.0MB. Free memory was 259.9MB in the beginning and 254.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 119 PlacesBefore, 42 PlacesAfterwards, 109 TransitionsBefore, 30 TransitionsAfterwards, 2602 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 118 TotalNumberOfCompositions, 4769 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2326, independent: 2223, independent conditional: 0, independent unconditional: 2223, dependent: 103, dependent conditional: 0, dependent unconditional: 103, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1397, independent: 1365, independent conditional: 0, independent unconditional: 1365, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2326, independent: 858, independent conditional: 0, independent unconditional: 858, dependent: 71, dependent conditional: 0, dependent unconditional: 71, unknown: 1397, unknown conditional: 0, unknown unconditional: 1397] , Statistics on independence cache: Total cache size (in pairs): 85, Positive cache size: 74, Positive conditional cache size: 0, Positive unconditional cache size: 74, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 784]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 146 locations, 14 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 13.8s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 616 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 414 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 117 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1365 IncrementalHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 117 mSolverCounterUnsat, 89 mSDtfsCounter, 1365 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=682occurred in iteration=7, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 209 NumberOfCodeBlocks, 209 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 1216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 02:24:50,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c81cfaf-0503-4353-aa74-ed6aa4cbfdc4/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE