./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/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_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34bb015d05a3d6b765805bee36bd4c1bc3f74929c05e61a51973bc9a4fc2cfc0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:03:14,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:03:14,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-12 02:03:14,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:03:14,247 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:03:14,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:03:14,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:03:14,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:03:14,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:03:14,282 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:03:14,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:03:14,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:03:14,285 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:03:14,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:03:14,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:03:14,287 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:03:14,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:03:14,288 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:03:14,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:03:14,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:03:14,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:03:14,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:03:14,291 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:03:14,292 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:03:14,292 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:03:14,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:03:14,294 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:03:14,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:03:14,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:03:14,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:03:14,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:14,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:03:14,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:03:14,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:03:14,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:03:14,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:03:14,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:03:14,300 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:03:14,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:03:14,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:03:14,302 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:03:14,303 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_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34bb015d05a3d6b765805bee36bd4c1bc3f74929c05e61a51973bc9a4fc2cfc0 [2023-11-12 02:03:14,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:03:14,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:03:14,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:03:14,729 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:03:14,730 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:03:14,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-11-12 02:03:18,242 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:03:18,517 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:03:18,518 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/sv-benchmarks/c/weaver/popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-11-12 02:03:18,527 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/data/3c108b742/ace302bb35564259bd2c8717ee7a6257/FLAG03beeb5ef [2023-11-12 02:03:18,545 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/data/3c108b742/ace302bb35564259bd2c8717ee7a6257 [2023-11-12 02:03:18,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:03:18,550 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:03:18,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:18,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:03:18,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:03:18,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d36f61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18, skipping insertion in model container [2023-11-12 02:03:18,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,601 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:03:18,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:18,850 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:03:18,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:03:18,892 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:03:18,892 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:03:18,898 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:03:18,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18 WrapperNode [2023-11-12 02:03:18,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:03:18,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:18,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:03:18,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:03:18,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,951 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 148 [2023-11-12 02:03:18,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:03:18,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:03:18,953 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:03:18,953 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:03:18,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:18,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:03:18,994 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:03:18,994 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:03:18,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:03:18,995 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (1/1) ... [2023-11-12 02:03:19,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:03:19,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:19,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:03:19,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:03:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:03:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:03:19,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:03:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:03:19,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:03:19,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:03:19,085 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:03:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-12 02:03:19,086 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-12 02:03:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:03:19,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:03:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:03:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:03:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:03:19,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:03:19,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:03:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:03:19,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:03:19,090 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 02:03:19,216 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:03:19,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:03:19,690 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:03:19,886 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:03:19,886 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:03:19,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:19 BoogieIcfgContainer [2023-11-12 02:03:19,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:03:19,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:03:19,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:03:19,896 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:03:19,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:03:18" (1/3) ... [2023-11-12 02:03:19,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112bb245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:19, skipping insertion in model container [2023-11-12 02:03:19,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:03:18" (2/3) ... [2023-11-12 02:03:19,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112bb245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:03:19, skipping insertion in model container [2023-11-12 02:03:19,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:03:19" (3/3) ... [2023-11-12 02:03:19,910 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-proofs-counter-add-4-semi-Q67.wvr.c [2023-11-12 02:03:19,919 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:03:19,932 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:03:19,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-12 02:03:19,932 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:03:20,070 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-12 02:03:20,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 153 transitions, 334 flow [2023-11-12 02:03:20,234 INFO L124 PetriNetUnfolderBase]: 10/149 cut-off events. [2023-11-12 02:03:20,235 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-12 02:03:20,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 149 events. 10/149 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 134 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-12 02:03:20,244 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 153 transitions, 334 flow [2023-11-12 02:03:20,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 123 transitions, 267 flow [2023-11-12 02:03:20,255 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:03:20,266 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 123 transitions, 267 flow [2023-11-12 02:03:20,269 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 123 transitions, 267 flow [2023-11-12 02:03:20,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 123 transitions, 267 flow [2023-11-12 02:03:20,307 INFO L124 PetriNetUnfolderBase]: 9/123 cut-off events. [2023-11-12 02:03:20,308 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 02:03:20,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 123 events. 9/123 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 134 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2023-11-12 02:03:20,313 INFO L119 LiptonReduction]: Number of co-enabled transitions 2904 [2023-11-12 02:03:28,104 INFO L134 LiptonReduction]: Checked pairs total: 3431 [2023-11-12 02:03:28,105 INFO L136 LiptonReduction]: Total number of compositions: 106 [2023-11-12 02:03:28,120 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:03:28,128 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@f1e46db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:03:28,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-12 02:03:28,132 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:03:28,133 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2023-11-12 02:03:28,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:03:28,133 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:28,134 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:03:28,135 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-11-12 02:03:28,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:28,141 INFO L85 PathProgramCache]: Analyzing trace with hash 20570307, now seen corresponding path program 1 times [2023-11-12 02:03:28,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:28,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168134964] [2023-11-12 02:03:28,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:28,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:28,554 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 02:03:28,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:28,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168134964] [2023-11-12 02:03:28,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168134964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:28,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:28,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:03:28,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420029197] [2023-11-12 02:03:28,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:28,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:28,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:28,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:28,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:28,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 259 [2023-11-12 02:03:28,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 43 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 02:03:28,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:28,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 259 [2023-11-12 02:03:28,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:34,143 INFO L124 PetriNetUnfolderBase]: 36245/43467 cut-off events. [2023-11-12 02:03:34,144 INFO L125 PetriNetUnfolderBase]: For 1006/1006 co-relation queries the response was YES. [2023-11-12 02:03:34,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88353 conditions, 43467 events. 36245/43467 cut-off events. For 1006/1006 co-relation queries the response was YES. Maximal size of possible extension queue 2888. Compared 201228 event pairs, 7551 based on Foata normal form. 0/11884 useless extension candidates. Maximal degree in co-relation 73949. Up to 26809 conditions per place. [2023-11-12 02:03:34,588 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 68 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2023-11-12 02:03:34,589 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 74 transitions, 327 flow [2023-11-12 02:03:34,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:34,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:03:34,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2023-11-12 02:03:34,615 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5495495495495496 [2023-11-12 02:03:34,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2023-11-12 02:03:34,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2023-11-12 02:03:34,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:34,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2023-11-12 02:03:34,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states 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 02:03:34,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states 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 02:03:34,645 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states 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 02:03:34,647 INFO L175 Difference]: Start difference. First operand has 52 places, 43 transitions, 107 flow. Second operand 3 states and 427 transitions. [2023-11-12 02:03:34,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 74 transitions, 327 flow [2023-11-12 02:03:34,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 74 transitions, 303 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-12 02:03:34,858 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 104 flow [2023-11-12 02:03:34,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2023-11-12 02:03:34,865 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -6 predicate places. [2023-11-12 02:03:34,865 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 104 flow [2023-11-12 02:03:34,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 02:03:34,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:34,867 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:03:34,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:03:34,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-11-12 02:03:34,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:34,870 INFO L85 PathProgramCache]: Analyzing trace with hash 20570306, now seen corresponding path program 1 times [2023-11-12 02:03:34,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:34,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830422788] [2023-11-12 02:03:34,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:34,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:35,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:35,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830422788] [2023-11-12 02:03:35,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830422788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:35,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:03:35,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:03:35,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351326763] [2023-11-12 02:03:35,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:35,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:03:35,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:35,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:03:35,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:03:35,047 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 259 [2023-11-12 02:03:35,048 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 02:03:35,048 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:35,048 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 259 [2023-11-12 02:03:35,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:38,138 INFO L124 PetriNetUnfolderBase]: 33783/40631 cut-off events. [2023-11-12 02:03:38,138 INFO L125 PetriNetUnfolderBase]: For 1606/1606 co-relation queries the response was YES. [2023-11-12 02:03:38,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84983 conditions, 40631 events. 33783/40631 cut-off events. For 1606/1606 co-relation queries the response was YES. Maximal size of possible extension queue 3093. Compared 175407 event pairs, 10621 based on Foata normal form. 0/12551 useless extension candidates. Maximal degree in co-relation 51676. Up to 40411 conditions per place. [2023-11-12 02:03:38,523 INFO L140 encePairwiseOnDemand]: 242/259 looper letters, 52 selfloop transitions, 5 changer transitions 2/63 dead transitions. [2023-11-12 02:03:38,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 63 transitions, 274 flow [2023-11-12 02:03:38,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:03:38,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:03:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 421 transitions. [2023-11-12 02:03:38,527 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5418275418275418 [2023-11-12 02:03:38,527 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 421 transitions. [2023-11-12 02:03:38,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 421 transitions. [2023-11-12 02:03:38,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:38,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 421 transitions. [2023-11-12 02:03:38,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 0 states have call successors, (0), 0 states 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 02:03:38,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states 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 02:03:38,535 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states 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 02:03:38,535 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 104 flow. Second operand 3 states and 421 transitions. [2023-11-12 02:03:38,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 63 transitions, 274 flow [2023-11-12 02:03:38,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 63 transitions, 271 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:03:38,539 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 159 flow [2023-11-12 02:03:38,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2023-11-12 02:03:38,541 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -4 predicate places. [2023-11-12 02:03:38,541 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 159 flow [2023-11-12 02:03:38,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states 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 02:03:38,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:38,542 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:03:38,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:03:38,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-11-12 02:03:38,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:38,544 INFO L85 PathProgramCache]: Analyzing trace with hash 637680145, now seen corresponding path program 1 times [2023-11-12 02:03:38,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:38,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036458202] [2023-11-12 02:03:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:38,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:38,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:38,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:38,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036458202] [2023-11-12 02:03:38,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036458202] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:38,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585948544] [2023-11-12 02:03:38,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:38,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:38,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:38,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:03:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:38,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:03:38,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:38,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:38,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:03:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:38,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585948544] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:03:38,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:03:38,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-11-12 02:03:38,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875986402] [2023-11-12 02:03:38,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:03:38,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:03:38,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:38,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:03:38,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:03:38,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 259 [2023-11-12 02:03:38,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 159 flow. Second operand has 7 states, 7 states have (on average 118.57142857142857) internal successors, (830), 7 states have internal predecessors, (830), 0 states have call successors, (0), 0 states 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 02:03:38,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:38,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 259 [2023-11-12 02:03:38,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:03:47,530 INFO L124 PetriNetUnfolderBase]: 85384/106658 cut-off events. [2023-11-12 02:03:47,530 INFO L125 PetriNetUnfolderBase]: For 11941/11941 co-relation queries the response was YES. [2023-11-12 02:03:47,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287433 conditions, 106658 events. 85384/106658 cut-off events. For 11941/11941 co-relation queries the response was YES. Maximal size of possible extension queue 6332. Compared 599228 event pairs, 7003 based on Foata normal form. 3502/62720 useless extension candidates. Maximal degree in co-relation 150567. Up to 63382 conditions per place. [2023-11-12 02:03:48,287 INFO L140 encePairwiseOnDemand]: 240/259 looper letters, 126 selfloop transitions, 60 changer transitions 0/190 dead transitions. [2023-11-12 02:03:48,287 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 190 transitions, 985 flow [2023-11-12 02:03:48,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:03:48,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:03:48,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1029 transitions. [2023-11-12 02:03:48,293 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2023-11-12 02:03:48,293 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1029 transitions. [2023-11-12 02:03:48,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1029 transitions. [2023-11-12 02:03:48,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:03:48,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1029 transitions. [2023-11-12 02:03:48,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 147.0) internal successors, (1029), 7 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states 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 02:03:48,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states 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 02:03:48,306 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 259.0) internal successors, (2072), 8 states have internal predecessors, (2072), 0 states have call successors, (0), 0 states 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 02:03:48,306 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 159 flow. Second operand 7 states and 1029 transitions. [2023-11-12 02:03:48,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 190 transitions, 985 flow [2023-11-12 02:03:48,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 190 transitions, 980 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:03:48,372 INFO L231 Difference]: Finished difference. Result has 58 places, 101 transitions, 720 flow [2023-11-12 02:03:48,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=720, PETRI_PLACES=58, PETRI_TRANSITIONS=101} [2023-11-12 02:03:48,373 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 6 predicate places. [2023-11-12 02:03:48,373 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 101 transitions, 720 flow [2023-11-12 02:03:48,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 118.57142857142857) internal successors, (830), 7 states have internal predecessors, (830), 0 states have call successors, (0), 0 states 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 02:03:48,375 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:03:48,375 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 02:03:48,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:03:48,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:48,582 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2023-11-12 02:03:48,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:03:48,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1706751327, now seen corresponding path program 1 times [2023-11-12 02:03:48,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:03:48,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015348099] [2023-11-12 02:03:48,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:48,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:03:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:48,730 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:48,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:03:48,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015348099] [2023-11-12 02:03:48,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015348099] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:03:48,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261401378] [2023-11-12 02:03:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:03:48,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:03:48,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:03:48,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:03:48,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8bfa9a0a-c475-42cb-b84e-71bdab98f7d8/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:03:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:03:48,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:03:48,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:03:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:03:48,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:03:48,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261401378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:03:48,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:03:48,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-12 02:03:48,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927763821] [2023-11-12 02:03:48,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:03:48,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:03:48,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:03:48,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:03:48,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:03:48,857 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 259 [2023-11-12 02:03:48,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 101 transitions, 720 flow. Second operand has 5 states, 5 states have (on average 118.0) internal successors, (590), 5 states have internal predecessors, (590), 0 states have call successors, (0), 0 states 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 02:03:48,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:03:48,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 259 [2023-11-12 02:03:48,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:04:03,556 INFO L124 PetriNetUnfolderBase]: 124297/152676 cut-off events. [2023-11-12 02:04:03,556 INFO L125 PetriNetUnfolderBase]: For 312058/312474 co-relation queries the response was YES. [2023-11-12 02:04:03,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709021 conditions, 152676 events. 124297/152676 cut-off events. For 312058/312474 co-relation queries the response was YES. Maximal size of possible extension queue 8637. Compared 832685 event pairs, 11430 based on Foata normal form. 13645/108986 useless extension candidates. Maximal degree in co-relation 332379. Up to 90880 conditions per place. [2023-11-12 02:04:04,834 INFO L140 encePairwiseOnDemand]: 240/259 looper letters, 83 selfloop transitions, 92 changer transitions 0/179 dead transitions. [2023-11-12 02:04:04,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 179 transitions, 1579 flow [2023-11-12 02:04:04,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:04:04,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-12 02:04:04,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 692 transitions. [2023-11-12 02:04:04,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5343629343629344 [2023-11-12 02:04:04,840 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 692 transitions. [2023-11-12 02:04:04,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 692 transitions. [2023-11-12 02:04:04,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:04:04,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 692 transitions. [2023-11-12 02:04:04,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 138.4) internal successors, (692), 5 states have internal predecessors, (692), 0 states have call successors, (0), 0 states 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 02:04:04,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 02:04:04,850 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 259.0) internal successors, (1554), 6 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states 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 02:04:04,850 INFO L175 Difference]: Start difference. First operand has 58 places, 101 transitions, 720 flow. Second operand 5 states and 692 transitions. [2023-11-12 02:04:04,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 179 transitions, 1579 flow