./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 18:26:51,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:26:51,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:26:51,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:26:51,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:26:51,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:26:51,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:26:51,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:26:51,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:26:51,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:26:51,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:26:51,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:26:51,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:26:51,100 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:26:51,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:26:51,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:26:51,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:26:51,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:26:51,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:26:51,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:26:51,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:26:51,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:26:51,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:26:51,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:26:51,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:26:51,122 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:26:51,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:26:51,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:26:51,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:26:51,125 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:26:51,125 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:26:51,126 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:26:51,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:26:51,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:26:51,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:26:51,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:26:51,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:26:51,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:26:51,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:26:51,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:26:51,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:26:51,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 18:26:51,182 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:26:51,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:26:51,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:26:51,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:26:51,183 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:26:51,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:26:51,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:26:51,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:26:51,185 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:26:51,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:26:51,185 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:26:51,185 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 18:26:51,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:26:51,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:26:51,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:26:51,186 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 18:26:51,186 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 18:26:51,186 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 18:26:51,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:26:51,186 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 18:26:51,187 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:26:51,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:26:51,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:26:51,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:26:51,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:26:51,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:26:51,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:26:51,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:26:51,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:26:51,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:26:51,194 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:26:51,194 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:26:51,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:26:51,194 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57b20b3268fa30a07af1365aac59c96531ad2ebea6861c18a1d5dfea8339adbb [2022-11-25 18:26:51,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:26:51,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:26:51,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:26:51,469 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:26:51,470 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:26:51,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-25 18:26:54,630 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:26:54,916 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:26:54,916 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2022-11-25 18:26:54,934 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/data/105dcaf96/04d06ad89e2a43048e80a0a6964444f2/FLAGd640f7ffb [2022-11-25 18:26:54,952 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/data/105dcaf96/04d06ad89e2a43048e80a0a6964444f2 [2022-11-25 18:26:54,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:26:54,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:26:54,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:26:54,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:26:54,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:26:54,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:54" (1/1) ... [2022-11-25 18:26:54,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772d9e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:54, skipping insertion in model container [2022-11-25 18:26:54,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:54" (1/1) ... [2022-11-25 18:26:54,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:26:54,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:26:55,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-25 18:26:55,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:26:55,306 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:26:55,368 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c[6501,6514] [2022-11-25 18:26:55,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:26:55,400 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:26:55,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55 WrapperNode [2022-11-25 18:26:55,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:26:55,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:26:55,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:26:55,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:26:55,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,473 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 28, calls inlined = 42, statements flattened = 574 [2022-11-25 18:26:55,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:26:55,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:26:55,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:26:55,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:26:55,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:26:55,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:26:55,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:26:55,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:26:55,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (1/1) ... [2022-11-25 18:26:55,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:26:55,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:55,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:26:55,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf10b9dd-1aa9-46cd-9699-44a551623645/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:26:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:26:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:26:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:26:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:26:55,641 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 18:26:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 18:26:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 18:26:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 18:26:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 18:26:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 18:26:55,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:26:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 18:26:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:26:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:26:55,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:26:55,645 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 18:26:55,819 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:26:55,822 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:26:56,964 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:26:56,989 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:26:56,989 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 18:26:56,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:56 BoogieIcfgContainer [2022-11-25 18:26:56,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:26:56,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:26:56,995 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:26:56,998 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:26:56,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:26:54" (1/3) ... [2022-11-25 18:26:57,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6a5264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:56, skipping insertion in model container [2022-11-25 18:26:57,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:55" (2/3) ... [2022-11-25 18:26:57,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6a5264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:26:57, skipping insertion in model container [2022-11-25 18:26:57,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:26:56" (3/3) ... [2022-11-25 18:26:57,007 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2022-11-25 18:26:57,053 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:26:57,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2022-11-25 18:26:57,054 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 18:26:57,284 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 18:26:57,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 768 places, 831 transitions, 1686 flow [2022-11-25 18:26:57,905 INFO L130 PetriNetUnfolder]: 73/828 cut-off events. [2022-11-25 18:26:57,906 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:26:57,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 828 events. 73/828 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3188 event pairs, 0 based on Foata normal form. 0/687 useless extension candidates. Maximal degree in co-relation 604. Up to 2 conditions per place. [2022-11-25 18:26:57,941 INFO L82 GeneralOperation]: Start removeDead. Operand has 768 places, 831 transitions, 1686 flow [2022-11-25 18:26:57,971 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 760 places, 823 transitions, 1664 flow [2022-11-25 18:26:57,976 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 18:26:58,001 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 760 places, 823 transitions, 1664 flow [2022-11-25 18:26:58,006 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 760 places, 823 transitions, 1664 flow [2022-11-25 18:26:58,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 760 places, 823 transitions, 1664 flow [2022-11-25 18:26:58,314 INFO L130 PetriNetUnfolder]: 73/823 cut-off events. [2022-11-25 18:26:58,314 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 18:26:58,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 836 conditions, 823 events. 73/823 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3182 event pairs, 0 based on Foata normal form. 0/683 useless extension candidates. Maximal degree in co-relation 604. Up to 2 conditions per place. [2022-11-25 18:26:58,412 INFO L119 LiptonReduction]: Number of co-enabled transitions 230010 [2022-11-25 18:27:46,326 INFO L134 LiptonReduction]: Checked pairs total: 237361 [2022-11-25 18:27:46,327 INFO L136 LiptonReduction]: Total number of compositions: 1080 [2022-11-25 18:27:46,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:27:46,351 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;@4bc7fdfe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:27:46,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 119 error locations. [2022-11-25 18:27:46,354 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 18:27:46,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 18:27:46,355 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:27:46,356 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 18:27:46,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2022-11-25 18:27:46,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:27:46,362 INFO L85 PathProgramCache]: Analyzing trace with hash 115445, now seen corresponding path program 1 times [2022-11-25 18:27:46,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:27:46,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38293052] [2022-11-25 18:27:46,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:27:46,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:27:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:27:46,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:27:46,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:27:46,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38293052] [2022-11-25 18:27:46,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38293052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:27:46,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:27:46,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:27:46,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804532123] [2022-11-25 18:27:46,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:27:46,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:27:46,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:27:46,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:27:46,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:27:47,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 766 out of 1911 [2022-11-25 18:27:47,233 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 117 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 766.6666666666666) internal successors, (2300), 3 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:27:47,234 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:27:47,234 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 766 of 1911 [2022-11-25 18:27:47,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 18:28:11,463 INFO L130 PetriNetUnfolder]: 134239/178480 cut-off events. [2022-11-25 18:28:11,464 INFO L131 PetriNetUnfolder]: For 2272/2272 co-relation queries the response was YES. [2022-11-25 18:28:11,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 359621 conditions, 178480 events. 134239/178480 cut-off events. For 2272/2272 co-relation queries the response was YES. Maximal size of possible extension queue 7537. Compared 1155635 event pairs, 108514 based on Foata normal form. 0/55305 useless extension candidates. Maximal degree in co-relation 173732. Up to 89243 conditions per place. [2022-11-25 18:28:12,466 INFO L137 encePairwiseOnDemand]: 1885/1911 looper letters, 190 selfloop transitions, 6 changer transitions 0/196 dead transitions. [2022-11-25 18:28:12,466 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 196 transitions, 820 flow [2022-11-25 18:28:12,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 18:28:12,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 18:28:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2531 transitions. [2022-11-25 18:28:12,498 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44147915576487007 [2022-11-25 18:28:12,498 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2531 transitions. [2022-11-25 18:28:12,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2531 transitions. [2022-11-25 18:28:12,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 18:28:12,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2531 transitions. [2022-11-25 18:28:12,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 843.6666666666666) internal successors, (2531), 3 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:12,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1911.0) internal successors, (7644), 4 states have internal predecessors, (7644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:12,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1911.0) internal successors, (7644), 4 states have internal predecessors, (7644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:12,546 INFO L175 Difference]: Start difference. First operand has 113 places, 117 transitions, 252 flow. Second operand 3 states and 2531 transitions. [2022-11-25 18:28:12,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 196 transitions, 820 flow [2022-11-25 18:28:12,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 196 transitions, 796 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 18:28:12,593 INFO L231 Difference]: Finished difference. Result has 94 places, 105 transitions, 256 flow [2022-11-25 18:28:12,595 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1911, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=94, PETRI_TRANSITIONS=105} [2022-11-25 18:28:12,602 INFO L288 CegarLoopForPetriNet]: 113 programPoint places, -19 predicate places. [2022-11-25 18:28:12,602 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 105 transitions, 256 flow [2022-11-25 18:28:12,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 766.6666666666666) internal successors, (2300), 3 states have internal predecessors, (2300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:12,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 18:28:12,605 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 18:28:12,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:28:12,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 116 more)] === [2022-11-25 18:28:12,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:28:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash 115444, now seen corresponding path program 1 times [2022-11-25 18:28:12,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:28:12,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527013021] [2022-11-25 18:28:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:28:12,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:28:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:28:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:28:12,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:28:12,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527013021] [2022-11-25 18:28:12,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527013021] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:28:12,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:28:12,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 18:28:12,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032599473] [2022-11-25 18:28:12,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:28:12,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 18:28:12,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:28:12,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 18:28:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 18:28:12,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 772 out of 1911 [2022-11-25 18:28:12,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 105 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 772.6666666666666) internal successors, (2318), 3 states have internal predecessors, (2318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 18:28:12,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 18:28:12,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 772 of 1911 [2022-11-25 18:28:12,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand