./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b 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_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:59:16,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:59:16,124 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 21:59:16,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:59:16,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:59:16,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:59:16,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:59:16,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:59:16,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:59:16,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:59:16,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:59:16,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:59:16,161 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:59:16,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:59:16,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:59:16,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:59:16,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:59:16,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:59:16,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:59:16,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:59:16,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:59:16,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:59:16,167 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:59:16,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:59:16,168 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:59:16,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:59:16,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:59:16,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:59:16,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:59:16,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:59:16,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:16,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:59:16,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:59:16,172 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:59:16,172 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:59:16,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:59:16,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:59:16,174 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:59:16,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:59:16,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:59:16,175 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:59:16,175 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_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f [2023-11-06 21:59:16,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:59:16,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:59:16,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:59:16,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:59:16,466 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:59:16,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-06 21:59:19,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:59:19,935 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:59:19,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2023-11-06 21:59:19,945 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/data/2d023105b/a6bc49a61e6047e2b248e7372c996533/FLAGc8a27e3a2 [2023-11-06 21:59:19,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/data/2d023105b/a6bc49a61e6047e2b248e7372c996533 [2023-11-06 21:59:19,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:59:19,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:59:19,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:19,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:59:19,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:59:19,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:19" (1/1) ... [2023-11-06 21:59:19,973 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b1126eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:19, skipping insertion in model container [2023-11-06 21:59:19,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:19" (1/1) ... [2023-11-06 21:59:20,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:59:20,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:20,224 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:59:20,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:20,273 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:59:20,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20 WrapperNode [2023-11-06 21:59:20,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:20,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:20,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:59:20,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:59:20,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,335 INFO L138 Inliner]: procedures = 26, calls = 51, calls flagged for inlining = 19, calls inlined = 25, statements flattened = 345 [2023-11-06 21:59:20,335 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:20,336 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:59:20,336 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:59:20,336 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:59:20,345 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,353 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:59:20,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:59:20,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:59:20,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:59:20,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (1/1) ... [2023-11-06 21:59:20,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:20,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:20,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:20,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:59:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:59:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:59:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:59:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:59:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:59:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:59:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:59:20,506 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:59:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:59:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:59:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:59:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:59:20,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:59:20,511 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:59:20,634 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:59:20,636 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:59:21,257 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:59:21,275 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:59:21,275 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 21:59:21,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:21 BoogieIcfgContainer [2023-11-06 21:59:21,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:59:21,282 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:59:21,282 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:59:21,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:59:21,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:19" (1/3) ... [2023-11-06 21:59:21,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e376f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:21, skipping insertion in model container [2023-11-06 21:59:21,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:20" (2/3) ... [2023-11-06 21:59:21,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e376f49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:21, skipping insertion in model container [2023-11-06 21:59:21,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:21" (3/3) ... [2023-11-06 21:59:21,289 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2023-11-06 21:59:21,298 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:59:21,309 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:59:21,310 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-06 21:59:21,310 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:59:21,508 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 21:59:21,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 443 places, 468 transitions, 950 flow [2023-11-06 21:59:21,847 INFO L124 PetriNetUnfolderBase]: 32/466 cut-off events. [2023-11-06 21:59:21,848 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:59:21,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 466 events. 32/466 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 597 event pairs, 0 based on Foata normal form. 0/404 useless extension candidates. Maximal degree in co-relation 359. Up to 2 conditions per place. [2023-11-06 21:59:21,859 INFO L82 GeneralOperation]: Start removeDead. Operand has 443 places, 468 transitions, 950 flow [2023-11-06 21:59:21,874 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 421 places, 445 transitions, 902 flow [2023-11-06 21:59:21,878 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:59:21,902 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 421 places, 445 transitions, 902 flow [2023-11-06 21:59:21,907 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 421 places, 445 transitions, 902 flow [2023-11-06 21:59:21,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 421 places, 445 transitions, 902 flow [2023-11-06 21:59:22,015 INFO L124 PetriNetUnfolderBase]: 31/445 cut-off events. [2023-11-06 21:59:22,015 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:59:22,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 31/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 596 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 359. Up to 2 conditions per place. [2023-11-06 21:59:22,033 INFO L119 LiptonReduction]: Number of co-enabled transitions 13832 [2023-11-06 21:59:49,292 INFO L134 LiptonReduction]: Checked pairs total: 15845 [2023-11-06 21:59:49,292 INFO L136 LiptonReduction]: Total number of compositions: 576 [2023-11-06 21:59:49,307 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:59:49,314 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=LoopsAndPotentialCycles, 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;@f297c86, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:59:49,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-06 21:59:49,316 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:59:49,316 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 21:59:49,317 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:59:49,317 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:49,317 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 21:59:49,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:49,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1836, now seen corresponding path program 1 times [2023-11-06 21:59:49,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:49,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729598020] [2023-11-06 21:59:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:49,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:49,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:49,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729598020] [2023-11-06 21:59:49,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729598020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:49,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:49,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 21:59:49,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149078420] [2023-11-06 21:59:49,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:49,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:59:49,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:49,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:59:49,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:59:49,479 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 441 out of 1044 [2023-11-06 21:59:49,484 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 55 transitions, 122 flow. Second operand has 2 states, 2 states have (on average 441.5) internal successors, (883), 2 states have internal predecessors, (883), 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) [2023-11-06 21:59:49,484 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:49,484 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 441 of 1044 [2023-11-06 21:59:49,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:49,695 INFO L124 PetriNetUnfolderBase]: 227/413 cut-off events. [2023-11-06 21:59:49,696 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-06 21:59:49,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 861 conditions, 413 events. 227/413 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1581 event pairs, 195 based on Foata normal form. 1/216 useless extension candidates. Maximal degree in co-relation 754. Up to 414 conditions per place. [2023-11-06 21:59:49,701 INFO L140 encePairwiseOnDemand]: 1036/1044 looper letters, 46 selfloop transitions, 0 changer transitions 1/47 dead transitions. [2023-11-06 21:59:49,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 47 transitions, 200 flow [2023-11-06 21:59:49,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:59:49,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 21:59:49,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 937 transitions. [2023-11-06 21:59:49,729 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44875478927203066 [2023-11-06 21:59:49,730 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 937 transitions. [2023-11-06 21:59:49,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 937 transitions. [2023-11-06 21:59:49,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:49,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 937 transitions. [2023-11-06 21:59:49,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 468.5) internal successors, (937), 2 states have internal predecessors, (937), 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) [2023-11-06 21:59:49,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1044.0) internal successors, (3132), 3 states have internal predecessors, (3132), 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) [2023-11-06 21:59:49,760 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1044.0) internal successors, (3132), 3 states have internal predecessors, (3132), 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) [2023-11-06 21:59:49,762 INFO L175 Difference]: Start difference. First operand has 56 places, 55 transitions, 122 flow. Second operand 2 states and 937 transitions. [2023-11-06 21:59:49,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 47 transitions, 200 flow [2023-11-06 21:59:49,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 47 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 21:59:49,770 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 95 flow [2023-11-06 21:59:49,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=95, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2023-11-06 21:59:49,778 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -11 predicate places. [2023-11-06 21:59:49,779 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 95 flow [2023-11-06 21:59:49,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 441.5) internal successors, (883), 2 states have internal predecessors, (883), 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) [2023-11-06 21:59:49,780 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:49,780 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 21:59:49,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:59:49,781 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:49,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:49,791 INFO L85 PathProgramCache]: Analyzing trace with hash 58572, now seen corresponding path program 1 times [2023-11-06 21:59:49,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:49,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850570415] [2023-11-06 21:59:49,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:49,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:50,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:50,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850570415] [2023-11-06 21:59:50,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850570415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:50,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:50,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:59:50,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199470808] [2023-11-06 21:59:50,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:50,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:50,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:50,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:50,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:50,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 1044 [2023-11-06 21:59:50,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 95 flow. Second operand has 3 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 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) [2023-11-06 21:59:50,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:50,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 1044 [2023-11-06 21:59:50,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:50,361 INFO L124 PetriNetUnfolderBase]: 233/420 cut-off events. [2023-11-06 21:59:50,361 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:59:50,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 420 events. 233/420 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1617 event pairs, 195 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 852. Up to 418 conditions per place. [2023-11-06 21:59:50,364 INFO L140 encePairwiseOnDemand]: 1031/1044 looper letters, 45 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2023-11-06 21:59:50,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 54 transitions, 219 flow [2023-11-06 21:59:50,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:50,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:50,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1351 transitions. [2023-11-06 21:59:50,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4313537675606641 [2023-11-06 21:59:50,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1351 transitions. [2023-11-06 21:59:50,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1351 transitions. [2023-11-06 21:59:50,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:50,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1351 transitions. [2023-11-06 21:59:50,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 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) [2023-11-06 21:59:50,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:50,390 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:50,390 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 95 flow. Second operand 3 states and 1351 transitions. [2023-11-06 21:59:50,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 54 transitions, 219 flow [2023-11-06 21:59:50,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 54 transitions, 219 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 21:59:50,393 INFO L231 Difference]: Finished difference. Result has 48 places, 54 transitions, 171 flow [2023-11-06 21:59:50,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=48, PETRI_TRANSITIONS=54} [2023-11-06 21:59:50,394 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -8 predicate places. [2023-11-06 21:59:50,394 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 54 transitions, 171 flow [2023-11-06 21:59:50,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 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) [2023-11-06 21:59:50,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:50,396 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-06 21:59:50,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:59:50,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:50,396 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:50,397 INFO L85 PathProgramCache]: Analyzing trace with hash 58656, now seen corresponding path program 1 times [2023-11-06 21:59:50,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:50,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748026026] [2023-11-06 21:59:50,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:50,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:50,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:50,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748026026] [2023-11-06 21:59:50,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748026026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:50,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:50,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:59:50,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691578257] [2023-11-06 21:59:50,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:50,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:50,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:50,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:50,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:50,502 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 1044 [2023-11-06 21:59:50,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 54 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 435.6666666666667) internal successors, (1307), 3 states have internal predecessors, (1307), 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) [2023-11-06 21:59:50,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:50,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 1044 [2023-11-06 21:59:50,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:50,696 INFO L124 PetriNetUnfolderBase]: 232/417 cut-off events. [2023-11-06 21:59:50,705 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:59:50,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 417 events. 232/417 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1592 event pairs, 195 based on Foata normal form. 0/218 useless extension candidates. Maximal degree in co-relation 873. Up to 417 conditions per place. [2023-11-06 21:59:50,708 INFO L140 encePairwiseOnDemand]: 1041/1044 looper letters, 50 selfloop transitions, 1 changer transitions 0/51 dead transitions. [2023-11-06 21:59:50,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 51 transitions, 261 flow [2023-11-06 21:59:50,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:50,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:50,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1351 transitions. [2023-11-06 21:59:50,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4313537675606641 [2023-11-06 21:59:50,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1351 transitions. [2023-11-06 21:59:50,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1351 transitions. [2023-11-06 21:59:50,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:50,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1351 transitions. [2023-11-06 21:59:50,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 450.3333333333333) internal successors, (1351), 3 states have internal predecessors, (1351), 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) [2023-11-06 21:59:50,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:50,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:50,732 INFO L175 Difference]: Start difference. First operand has 48 places, 54 transitions, 171 flow. Second operand 3 states and 1351 transitions. [2023-11-06 21:59:50,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 51 transitions, 261 flow [2023-11-06 21:59:50,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 245 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:59:50,737 INFO L231 Difference]: Finished difference. Result has 46 places, 51 transitions, 145 flow [2023-11-06 21:59:50,737 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=46, PETRI_TRANSITIONS=51} [2023-11-06 21:59:50,739 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -10 predicate places. [2023-11-06 21:59:50,739 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 51 transitions, 145 flow [2023-11-06 21:59:50,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.6666666666667) internal successors, (1307), 3 states have internal predecessors, (1307), 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) [2023-11-06 21:59:50,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:50,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 21:59:50,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:59:50,745 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:50,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:50,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1819953, now seen corresponding path program 1 times [2023-11-06 21:59:50,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:50,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367519974] [2023-11-06 21:59:50,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:50,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:50,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:50,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:50,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367519974] [2023-11-06 21:59:50,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367519974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:50,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:50,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:59:50,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774556573] [2023-11-06 21:59:50,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:50,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:50,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:50,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:50,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:50,869 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 1044 [2023-11-06 21:59:50,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 51 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 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) [2023-11-06 21:59:50,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:50,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 1044 [2023-11-06 21:59:50,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:51,028 INFO L124 PetriNetUnfolderBase]: 231/414 cut-off events. [2023-11-06 21:59:51,028 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:59:51,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 863 conditions, 414 events. 231/414 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1586 event pairs, 195 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 858. Up to 414 conditions per place. [2023-11-06 21:59:51,032 INFO L140 encePairwiseOnDemand]: 1041/1044 looper letters, 47 selfloop transitions, 1 changer transitions 0/48 dead transitions. [2023-11-06 21:59:51,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 231 flow [2023-11-06 21:59:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:51,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:51,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1343 transitions. [2023-11-06 21:59:51,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4287994891443167 [2023-11-06 21:59:51,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1343 transitions. [2023-11-06 21:59:51,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1343 transitions. [2023-11-06 21:59:51,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:51,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1343 transitions. [2023-11-06 21:59:51,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 447.6666666666667) internal successors, (1343), 3 states have internal predecessors, (1343), 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) [2023-11-06 21:59:51,053 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:51,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:51,057 INFO L175 Difference]: Start difference. First operand has 46 places, 51 transitions, 145 flow. Second operand 3 states and 1343 transitions. [2023-11-06 21:59:51,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 231 flow [2023-11-06 21:59:51,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 48 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:59:51,059 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 136 flow [2023-11-06 21:59:51,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2023-11-06 21:59:51,061 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -11 predicate places. [2023-11-06 21:59:51,061 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 136 flow [2023-11-06 21:59:51,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 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) [2023-11-06 21:59:51,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:51,063 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 21:59:51,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 21:59:51,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:51,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:51,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1819868, now seen corresponding path program 1 times [2023-11-06 21:59:51,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:51,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177528445] [2023-11-06 21:59:51,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:51,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:51,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:51,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177528445] [2023-11-06 21:59:51,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177528445] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:51,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909748912] [2023-11-06 21:59:51,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:51,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:51,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:51,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:51,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:59:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:51,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:59:51,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:51,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:51,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909748912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:51,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:59:51,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-06 21:59:51,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274185385] [2023-11-06 21:59:51,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:51,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:59:51,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:51,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:59:51,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:59:51,441 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 1044 [2023-11-06 21:59:51,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 431.75) internal successors, (1727), 4 states have internal predecessors, (1727), 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) [2023-11-06 21:59:51,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:51,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 1044 [2023-11-06 21:59:51,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:51,676 INFO L124 PetriNetUnfolderBase]: 231/412 cut-off events. [2023-11-06 21:59:51,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:59:51,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 858 conditions, 412 events. 231/412 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1572 event pairs, 195 based on Foata normal form. 0/216 useless extension candidates. Maximal degree in co-relation 853. Up to 404 conditions per place. [2023-11-06 21:59:51,680 INFO L140 encePairwiseOnDemand]: 1035/1044 looper letters, 36 selfloop transitions, 10 changer transitions 0/46 dead transitions. [2023-11-06 21:59:51,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 46 transitions, 220 flow [2023-11-06 21:59:51,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:59:51,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:59:51,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1772 transitions. [2023-11-06 21:59:51,687 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42432950191570884 [2023-11-06 21:59:51,687 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1772 transitions. [2023-11-06 21:59:51,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1772 transitions. [2023-11-06 21:59:51,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:51,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1772 transitions. [2023-11-06 21:59:51,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 443.0) internal successors, (1772), 4 states have internal predecessors, (1772), 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) [2023-11-06 21:59:51,705 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1044.0) internal successors, (5220), 5 states have internal predecessors, (5220), 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) [2023-11-06 21:59:51,710 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1044.0) internal successors, (5220), 5 states have internal predecessors, (5220), 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) [2023-11-06 21:59:51,710 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 136 flow. Second operand 4 states and 1772 transitions. [2023-11-06 21:59:51,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 46 transitions, 220 flow [2023-11-06 21:59:51,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 46 transitions, 219 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:59:51,712 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 147 flow [2023-11-06 21:59:51,712 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=147, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2023-11-06 21:59:51,713 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -11 predicate places. [2023-11-06 21:59:51,713 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 147 flow [2023-11-06 21:59:51,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 431.75) internal successors, (1727), 4 states have internal predecessors, (1727), 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) [2023-11-06 21:59:51,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:51,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 21:59:51,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:51,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:51,922 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:51,922 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:51,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1819948, now seen corresponding path program 1 times [2023-11-06 21:59:51,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:51,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335614788] [2023-11-06 21:59:51,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:51,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:52,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:52,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:52,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335614788] [2023-11-06 21:59:52,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335614788] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:52,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433509904] [2023-11-06 21:59:52,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:52,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:52,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:52,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:52,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:59:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:52,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:59:52,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:52,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:59:52,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:52,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433509904] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:59:52,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:59:52,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2023-11-06 21:59:52,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370110036] [2023-11-06 21:59:52,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:59:52,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:59:52,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:52,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:59:52,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:59:52,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 1044 [2023-11-06 21:59:52,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 147 flow. Second operand has 7 states, 7 states have (on average 432.14285714285717) internal successors, (3025), 7 states have internal predecessors, (3025), 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) [2023-11-06 21:59:52,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:52,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 1044 [2023-11-06 21:59:52,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:52,555 INFO L124 PetriNetUnfolderBase]: 243/430 cut-off events. [2023-11-06 21:59:52,556 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:59:52,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934 conditions, 430 events. 243/430 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1610 event pairs, 195 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 929. Up to 419 conditions per place. [2023-11-06 21:59:52,559 INFO L140 encePairwiseOnDemand]: 1035/1044 looper letters, 39 selfloop transitions, 25 changer transitions 0/64 dead transitions. [2023-11-06 21:59:52,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 64 transitions, 371 flow [2023-11-06 21:59:52,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:59:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 21:59:52,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2656 transitions. [2023-11-06 21:59:52,570 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4240102171136654 [2023-11-06 21:59:52,570 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2656 transitions. [2023-11-06 21:59:52,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2656 transitions. [2023-11-06 21:59:52,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:52,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2656 transitions. [2023-11-06 21:59:52,582 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 442.6666666666667) internal successors, (2656), 6 states have internal predecessors, (2656), 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) [2023-11-06 21:59:52,600 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1044.0) internal successors, (7308), 7 states have internal predecessors, (7308), 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) [2023-11-06 21:59:52,603 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1044.0) internal successors, (7308), 7 states have internal predecessors, (7308), 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) [2023-11-06 21:59:52,604 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 147 flow. Second operand 6 states and 2656 transitions. [2023-11-06 21:59:52,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 64 transitions, 371 flow [2023-11-06 21:59:52,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 64 transitions, 345 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:59:52,610 INFO L231 Difference]: Finished difference. Result has 51 places, 64 transitions, 313 flow [2023-11-06 21:59:52,610 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=313, PETRI_PLACES=51, PETRI_TRANSITIONS=64} [2023-11-06 21:59:52,614 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -5 predicate places. [2023-11-06 21:59:52,614 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 64 transitions, 313 flow [2023-11-06 21:59:52,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 432.14285714285717) internal successors, (3025), 7 states have internal predecessors, (3025), 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) [2023-11-06 21:59:52,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:52,616 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 21:59:52,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:52,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 21:59:52,822 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:52,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:52,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1822265, now seen corresponding path program 1 times [2023-11-06 21:59:52,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:52,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551024546] [2023-11-06 21:59:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:52,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:52,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:52,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551024546] [2023-11-06 21:59:52,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551024546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:52,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:52,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:59:52,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954399529] [2023-11-06 21:59:52,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:52,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:52,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:52,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:52,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:52,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 433 out of 1044 [2023-11-06 21:59:52,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 64 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 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) [2023-11-06 21:59:52,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:52,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 433 of 1044 [2023-11-06 21:59:52,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:53,058 INFO L124 PetriNetUnfolderBase]: 239/425 cut-off events. [2023-11-06 21:59:53,058 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 21:59:53,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 948 conditions, 425 events. 239/425 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1604 event pairs, 195 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 940. Up to 425 conditions per place. [2023-11-06 21:59:53,062 INFO L140 encePairwiseOnDemand]: 1042/1044 looper letters, 58 selfloop transitions, 1 changer transitions 0/59 dead transitions. [2023-11-06 21:59:53,062 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 59 transitions, 394 flow [2023-11-06 21:59:53,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1339 transitions. [2023-11-06 21:59:53,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.427522349936143 [2023-11-06 21:59:53,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1339 transitions. [2023-11-06 21:59:53,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1339 transitions. [2023-11-06 21:59:53,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:53,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1339 transitions. [2023-11-06 21:59:53,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 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) [2023-11-06 21:59:53,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:53,084 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:53,084 INFO L175 Difference]: Start difference. First operand has 51 places, 64 transitions, 313 flow. Second operand 3 states and 1339 transitions. [2023-11-06 21:59:53,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 59 transitions, 394 flow [2023-11-06 21:59:53,087 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 59 transitions, 361 flow, removed 12 selfloop flow, removed 1 redundant places. [2023-11-06 21:59:53,088 INFO L231 Difference]: Finished difference. Result has 51 places, 59 transitions, 245 flow [2023-11-06 21:59:53,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=245, PETRI_PLACES=51, PETRI_TRANSITIONS=59} [2023-11-06 21:59:53,089 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -5 predicate places. [2023-11-06 21:59:53,089 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 59 transitions, 245 flow [2023-11-06 21:59:53,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 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) [2023-11-06 21:59:53,090 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:53,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 21:59:53,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:59:53,091 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:53,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:53,091 INFO L85 PathProgramCache]: Analyzing trace with hash 56494114, now seen corresponding path program 1 times [2023-11-06 21:59:53,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:53,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133324418] [2023-11-06 21:59:53,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:53,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:53,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:53,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:53,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:53,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133324418] [2023-11-06 21:59:53,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133324418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:53,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:53,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:59:53,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138958486] [2023-11-06 21:59:53,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:53,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:53,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:53,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:53,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:53,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 1044 [2023-11-06 21:59:53,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 59 transitions, 245 flow. Second operand has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 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) [2023-11-06 21:59:53,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:53,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 1044 [2023-11-06 21:59:53,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:53,369 INFO L124 PetriNetUnfolderBase]: 235/420 cut-off events. [2023-11-06 21:59:53,369 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-06 21:59:53,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 420 events. 235/420 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1602 event pairs, 195 based on Foata normal form. 0/234 useless extension candidates. Maximal degree in co-relation 904. Up to 420 conditions per place. [2023-11-06 21:59:53,373 INFO L140 encePairwiseOnDemand]: 1042/1044 looper letters, 53 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2023-11-06 21:59:53,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 54 transitions, 323 flow [2023-11-06 21:59:53,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:53,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:53,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1344 transitions. [2023-11-06 21:59:53,379 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42911877394636017 [2023-11-06 21:59:53,380 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1344 transitions. [2023-11-06 21:59:53,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1344 transitions. [2023-11-06 21:59:53,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:53,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1344 transitions. [2023-11-06 21:59:53,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 448.0) internal successors, (1344), 3 states have internal predecessors, (1344), 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) [2023-11-06 21:59:53,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:53,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:53,394 INFO L175 Difference]: Start difference. First operand has 51 places, 59 transitions, 245 flow. Second operand 3 states and 1344 transitions. [2023-11-06 21:59:53,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 54 transitions, 323 flow [2023-11-06 21:59:53,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 54 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:59:53,404 INFO L231 Difference]: Finished difference. Result has 51 places, 54 transitions, 216 flow [2023-11-06 21:59:53,404 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=51, PETRI_TRANSITIONS=54} [2023-11-06 21:59:53,408 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -5 predicate places. [2023-11-06 21:59:53,408 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 54 transitions, 216 flow [2023-11-06 21:59:53,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.3333333333333) internal successors, (1309), 3 states have internal predecessors, (1309), 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) [2023-11-06 21:59:53,409 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:53,409 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 21:59:53,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:59:53,409 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:53,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:53,410 INFO L85 PathProgramCache]: Analyzing trace with hash 56494876, now seen corresponding path program 1 times [2023-11-06 21:59:53,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:53,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593686889] [2023-11-06 21:59:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:53,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:53,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:53,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:53,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593686889] [2023-11-06 21:59:53,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593686889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:53,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:53,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:59:53,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426094445] [2023-11-06 21:59:53,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:53,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:53,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:53,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:53,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:53,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 1044 [2023-11-06 21:59:53,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 54 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 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) [2023-11-06 21:59:53,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:53,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 1044 [2023-11-06 21:59:53,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:53,755 INFO L124 PetriNetUnfolderBase]: 237/424 cut-off events. [2023-11-06 21:59:53,755 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-06 21:59:53,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 922 conditions, 424 events. 237/424 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1616 event pairs, 195 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 913. Up to 418 conditions per place. [2023-11-06 21:59:53,759 INFO L140 encePairwiseOnDemand]: 1035/1044 looper letters, 49 selfloop transitions, 9 changer transitions 0/58 dead transitions. [2023-11-06 21:59:53,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 58 transitions, 340 flow [2023-11-06 21:59:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:53,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1339 transitions. [2023-11-06 21:59:53,767 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.427522349936143 [2023-11-06 21:59:53,767 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1339 transitions. [2023-11-06 21:59:53,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1339 transitions. [2023-11-06 21:59:53,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:53,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1339 transitions. [2023-11-06 21:59:53,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 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) [2023-11-06 21:59:53,783 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:53,785 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:53,785 INFO L175 Difference]: Start difference. First operand has 51 places, 54 transitions, 216 flow. Second operand 3 states and 1339 transitions. [2023-11-06 21:59:53,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 58 transitions, 340 flow [2023-11-06 21:59:53,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 58 transitions, 339 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 21:59:53,795 INFO L231 Difference]: Finished difference. Result has 54 places, 58 transitions, 275 flow [2023-11-06 21:59:53,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=275, PETRI_PLACES=54, PETRI_TRANSITIONS=58} [2023-11-06 21:59:53,797 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2023-11-06 21:59:53,797 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 58 transitions, 275 flow [2023-11-06 21:59:53,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 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) [2023-11-06 21:59:53,798 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:53,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 21:59:53,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 21:59:53,798 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:53,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:53,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1751343771, now seen corresponding path program 1 times [2023-11-06 21:59:53,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:53,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113683747] [2023-11-06 21:59:53,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:53,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:53,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:53,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113683747] [2023-11-06 21:59:53,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113683747] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:53,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38583954] [2023-11-06 21:59:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:53,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:53,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:53,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:53,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:59:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:54,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:54,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:54,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:54,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38583954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:54,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:59:54,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2023-11-06 21:59:54,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573413309] [2023-11-06 21:59:54,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:54,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:54,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:54,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:54,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:59:54,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 1044 [2023-11-06 21:59:54,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 58 transitions, 275 flow. Second operand has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 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) [2023-11-06 21:59:54,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:54,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 1044 [2023-11-06 21:59:54,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:54,252 INFO L124 PetriNetUnfolderBase]: 236/423 cut-off events. [2023-11-06 21:59:54,252 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-06 21:59:54,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 946 conditions, 423 events. 236/423 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1608 event pairs, 195 based on Foata normal form. 1/238 useless extension candidates. Maximal degree in co-relation 936. Up to 423 conditions per place. [2023-11-06 21:59:54,256 INFO L140 encePairwiseOnDemand]: 1041/1044 looper letters, 55 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2023-11-06 21:59:54,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 57 transitions, 385 flow [2023-11-06 21:59:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:54,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1327 transitions. [2023-11-06 21:59:54,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42369093231162197 [2023-11-06 21:59:54,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1327 transitions. [2023-11-06 21:59:54,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1327 transitions. [2023-11-06 21:59:54,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:54,264 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1327 transitions. [2023-11-06 21:59:54,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 442.3333333333333) internal successors, (1327), 3 states have internal predecessors, (1327), 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) [2023-11-06 21:59:54,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:54,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:54,277 INFO L175 Difference]: Start difference. First operand has 54 places, 58 transitions, 275 flow. Second operand 3 states and 1327 transitions. [2023-11-06 21:59:54,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 57 transitions, 385 flow [2023-11-06 21:59:54,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 57 transitions, 367 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:59:54,280 INFO L231 Difference]: Finished difference. Result has 54 places, 57 transitions, 257 flow [2023-11-06 21:59:54,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=253, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=54, PETRI_TRANSITIONS=57} [2023-11-06 21:59:54,281 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2023-11-06 21:59:54,281 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 57 transitions, 257 flow [2023-11-06 21:59:54,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 430.6666666666667) internal successors, (1292), 3 states have internal predecessors, (1292), 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) [2023-11-06 21:59:54,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:54,283 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2023-11-06 21:59:54,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:54,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 21:59:54,489 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:54,489 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:54,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1614780132, now seen corresponding path program 2 times [2023-11-06 21:59:54,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:54,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934804067] [2023-11-06 21:59:54,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:54,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:54,580 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:59:54,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:54,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934804067] [2023-11-06 21:59:54,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934804067] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:54,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008830910] [2023-11-06 21:59:54,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:59:54,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:54,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:54,583 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:54,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 21:59:54,691 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:59:54,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:59:54,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:59:54,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:54,740 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-06 21:59:54,740 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:54,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008830910] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:54,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:59:54,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2023-11-06 21:59:54,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414000243] [2023-11-06 21:59:54,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:54,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:54,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:54,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:54,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 21:59:54,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 1044 [2023-11-06 21:59:54,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 57 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 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) [2023-11-06 21:59:54,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:54,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 1044 [2023-11-06 21:59:54,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:54,940 INFO L124 PetriNetUnfolderBase]: 236/421 cut-off events. [2023-11-06 21:59:54,940 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-06 21:59:54,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 421 events. 236/421 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1593 event pairs, 195 based on Foata normal form. 2/235 useless extension candidates. Maximal degree in co-relation 917. Up to 407 conditions per place. [2023-11-06 21:59:54,944 INFO L140 encePairwiseOnDemand]: 1040/1044 looper letters, 49 selfloop transitions, 6 changer transitions 0/55 dead transitions. [2023-11-06 21:59:54,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 55 transitions, 347 flow [2023-11-06 21:59:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:54,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:54,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1343 transitions. [2023-11-06 21:59:54,950 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4287994891443167 [2023-11-06 21:59:54,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1343 transitions. [2023-11-06 21:59:54,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1343 transitions. [2023-11-06 21:59:54,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:54,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1343 transitions. [2023-11-06 21:59:54,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 447.6666666666667) internal successors, (1343), 3 states have internal predecessors, (1343), 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) [2023-11-06 21:59:54,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:54,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:54,963 INFO L175 Difference]: Start difference. First operand has 54 places, 57 transitions, 257 flow. Second operand 3 states and 1343 transitions. [2023-11-06 21:59:54,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 55 transitions, 347 flow [2023-11-06 21:59:54,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 55 transitions, 311 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-06 21:59:54,966 INFO L231 Difference]: Finished difference. Result has 49 places, 55 transitions, 213 flow [2023-11-06 21:59:54,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=49, PETRI_TRANSITIONS=55} [2023-11-06 21:59:54,967 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -7 predicate places. [2023-11-06 21:59:54,967 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 55 transitions, 213 flow [2023-11-06 21:59:54,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 436.0) internal successors, (1308), 3 states have internal predecessors, (1308), 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) [2023-11-06 21:59:54,968 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:54,968 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:59:54,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:55,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-06 21:59:55,174 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:55,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:55,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1612461941, now seen corresponding path program 1 times [2023-11-06 21:59:55,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:55,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238988299] [2023-11-06 21:59:55,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:55,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:55,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:55,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238988299] [2023-11-06 21:59:55,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238988299] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:55,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907029634] [2023-11-06 21:59:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:55,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:55,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:55,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:55,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 21:59:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:55,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:55,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:55,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:59:55,390 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:55,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907029634] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:55,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:59:55,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2023-11-06 21:59:55,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865148626] [2023-11-06 21:59:55,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:55,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:59:55,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:55,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:59:55,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:59:55,495 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 1044 [2023-11-06 21:59:55,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 55 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 424.5) internal successors, (1698), 4 states have internal predecessors, (1698), 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) [2023-11-06 21:59:55,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:55,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 1044 [2023-11-06 21:59:55,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:55,694 INFO L124 PetriNetUnfolderBase]: 235/420 cut-off events. [2023-11-06 21:59:55,694 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2023-11-06 21:59:55,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 904 conditions, 420 events. 235/420 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1584 event pairs, 195 based on Foata normal form. 1/233 useless extension candidates. Maximal degree in co-relation 898. Up to 415 conditions per place. [2023-11-06 21:59:55,698 INFO L140 encePairwiseOnDemand]: 1039/1044 looper letters, 47 selfloop transitions, 7 changer transitions 0/54 dead transitions. [2023-11-06 21:59:55,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 54 transitions, 313 flow [2023-11-06 21:59:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:59:55,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:59:55,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1731 transitions. [2023-11-06 21:59:55,705 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41451149425287354 [2023-11-06 21:59:55,706 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1731 transitions. [2023-11-06 21:59:55,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1731 transitions. [2023-11-06 21:59:55,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:55,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1731 transitions. [2023-11-06 21:59:55,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 432.75) internal successors, (1731), 4 states have internal predecessors, (1731), 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) [2023-11-06 21:59:55,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1044.0) internal successors, (5220), 5 states have internal predecessors, (5220), 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) [2023-11-06 21:59:55,725 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1044.0) internal successors, (5220), 5 states have internal predecessors, (5220), 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) [2023-11-06 21:59:55,725 INFO L175 Difference]: Start difference. First operand has 49 places, 55 transitions, 213 flow. Second operand 4 states and 1731 transitions. [2023-11-06 21:59:55,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 54 transitions, 313 flow [2023-11-06 21:59:55,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 303 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 21:59:55,727 INFO L231 Difference]: Finished difference. Result has 50 places, 54 transitions, 209 flow [2023-11-06 21:59:55,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=209, PETRI_PLACES=50, PETRI_TRANSITIONS=54} [2023-11-06 21:59:55,728 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, -6 predicate places. [2023-11-06 21:59:55,729 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 54 transitions, 209 flow [2023-11-06 21:59:55,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 424.5) internal successors, (1698), 4 states have internal predecessors, (1698), 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) [2023-11-06 21:59:55,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:55,730 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:55,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:55,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-06 21:59:55,936 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:55,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:55,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1552620179, now seen corresponding path program 1 times [2023-11-06 21:59:55,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:55,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043351103] [2023-11-06 21:59:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:55,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:59:56,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:56,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043351103] [2023-11-06 21:59:56,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043351103] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:56,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324424052] [2023-11-06 21:59:56,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:56,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:56,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:56,012 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:56,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 21:59:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:56,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 21:59:56,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:56,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:56,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:59:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:59:56,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324424052] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:59:56,303 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:59:56,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 12 [2023-11-06 21:59:56,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456103932] [2023-11-06 21:59:56,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:59:56,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 21:59:56,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:56,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 21:59:56,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-11-06 21:59:57,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 403 out of 1044 [2023-11-06 21:59:57,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 54 transitions, 209 flow. Second operand has 13 states, 13 states have (on average 404.53846153846155) internal successors, (5259), 13 states have internal predecessors, (5259), 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) [2023-11-06 21:59:57,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:57,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 403 of 1044 [2023-11-06 21:59:57,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:57,565 INFO L124 PetriNetUnfolderBase]: 470/836 cut-off events. [2023-11-06 21:59:57,565 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-11-06 21:59:57,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1783 conditions, 836 events. 470/836 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 3851 event pairs, 390 based on Foata normal form. 0/457 useless extension candidates. Maximal degree in co-relation 1777. Up to 411 conditions per place. [2023-11-06 21:59:57,572 INFO L140 encePairwiseOnDemand]: 1032/1044 looper letters, 74 selfloop transitions, 30 changer transitions 0/104 dead transitions. [2023-11-06 21:59:57,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 104 transitions, 589 flow [2023-11-06 21:59:57,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 21:59:57,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 21:59:57,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4525 transitions. [2023-11-06 21:59:57,589 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3940264716126785 [2023-11-06 21:59:57,589 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4525 transitions. [2023-11-06 21:59:57,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4525 transitions. [2023-11-06 21:59:57,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:57,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4525 transitions. [2023-11-06 21:59:57,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 411.3636363636364) internal successors, (4525), 11 states have internal predecessors, (4525), 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) [2023-11-06 21:59:57,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 1044.0) internal successors, (12528), 12 states have internal predecessors, (12528), 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) [2023-11-06 21:59:57,630 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 1044.0) internal successors, (12528), 12 states have internal predecessors, (12528), 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) [2023-11-06 21:59:57,630 INFO L175 Difference]: Start difference. First operand has 50 places, 54 transitions, 209 flow. Second operand 11 states and 4525 transitions. [2023-11-06 21:59:57,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 104 transitions, 589 flow [2023-11-06 21:59:57,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 104 transitions, 573 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 21:59:57,634 INFO L231 Difference]: Finished difference. Result has 63 places, 72 transitions, 411 flow [2023-11-06 21:59:57,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=411, PETRI_PLACES=63, PETRI_TRANSITIONS=72} [2023-11-06 21:59:57,635 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 7 predicate places. [2023-11-06 21:59:57,635 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 72 transitions, 411 flow [2023-11-06 21:59:57,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 404.53846153846155) internal successors, (5259), 13 states have internal predecessors, (5259), 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) [2023-11-06 21:59:57,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:57,638 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:57,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:57,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:57,844 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:57,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:57,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1249262460, now seen corresponding path program 1 times [2023-11-06 21:59:57,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:57,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747290937] [2023-11-06 21:59:57,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:57,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 21:59:57,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:57,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747290937] [2023-11-06 21:59:57,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747290937] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:57,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:57,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:59:57,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892044705] [2023-11-06 21:59:57,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:57,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:57,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:57,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:57,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:59:57,928 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 1044 [2023-11-06 21:59:57,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 72 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 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) [2023-11-06 21:59:57,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:57,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 1044 [2023-11-06 21:59:57,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:58,242 INFO L124 PetriNetUnfolderBase]: 467/830 cut-off events. [2023-11-06 21:59:58,242 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-11-06 21:59:58,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1825 conditions, 830 events. 467/830 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3782 event pairs, 390 based on Foata normal form. 6/469 useless extension candidates. Maximal degree in co-relation 1814. Up to 805 conditions per place. [2023-11-06 21:59:58,250 INFO L140 encePairwiseOnDemand]: 1040/1044 looper letters, 54 selfloop transitions, 13 changer transitions 0/67 dead transitions. [2023-11-06 21:59:58,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 67 transitions, 505 flow [2023-11-06 21:59:58,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:58,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:58,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1329 transitions. [2023-11-06 21:59:58,256 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42432950191570884 [2023-11-06 21:59:58,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1329 transitions. [2023-11-06 21:59:58,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1329 transitions. [2023-11-06 21:59:58,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:58,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1329 transitions. [2023-11-06 21:59:58,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 443.0) internal successors, (1329), 3 states have internal predecessors, (1329), 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) [2023-11-06 21:59:58,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:58,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:58,267 INFO L175 Difference]: Start difference. First operand has 63 places, 72 transitions, 411 flow. Second operand 3 states and 1329 transitions. [2023-11-06 21:59:58,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 67 transitions, 505 flow [2023-11-06 21:59:58,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 67 transitions, 464 flow, removed 10 selfloop flow, removed 3 redundant places. [2023-11-06 21:59:58,271 INFO L231 Difference]: Finished difference. Result has 60 places, 67 transitions, 356 flow [2023-11-06 21:59:58,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=60, PETRI_TRANSITIONS=67} [2023-11-06 21:59:58,272 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 4 predicate places. [2023-11-06 21:59:58,272 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 67 transitions, 356 flow [2023-11-06 21:59:58,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 433.3333333333333) internal successors, (1300), 3 states have internal predecessors, (1300), 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) [2023-11-06 21:59:58,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:58,273 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:58,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 21:59:58,274 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:58,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:58,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1717708861, now seen corresponding path program 1 times [2023-11-06 21:59:58,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:58,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005122873] [2023-11-06 21:59:58,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:58,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:58,373 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 21:59:58,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:58,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005122873] [2023-11-06 21:59:58,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005122873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:58,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:59:58,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:59:58,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836966712] [2023-11-06 21:59:58,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:58,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:59:58,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:58,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:59:58,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:59:58,448 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 1044 [2023-11-06 21:59:58,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 67 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 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) [2023-11-06 21:59:58,450 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:58,450 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 1044 [2023-11-06 21:59:58,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:58,733 INFO L124 PetriNetUnfolderBase]: 465/828 cut-off events. [2023-11-06 21:59:58,733 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-06 21:59:58,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1810 conditions, 828 events. 465/828 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3763 event pairs, 390 based on Foata normal form. 2/467 useless extension candidates. Maximal degree in co-relation 1799. Up to 820 conditions per place. [2023-11-06 21:59:58,740 INFO L140 encePairwiseOnDemand]: 1040/1044 looper letters, 54 selfloop transitions, 11 changer transitions 0/65 dead transitions. [2023-11-06 21:59:58,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 65 transitions, 475 flow [2023-11-06 21:59:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:59:58,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 21:59:58,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1728 transitions. [2023-11-06 21:59:58,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.41379310344827586 [2023-11-06 21:59:58,749 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1728 transitions. [2023-11-06 21:59:58,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1728 transitions. [2023-11-06 21:59:58,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:58,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1728 transitions. [2023-11-06 21:59:58,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 432.0) internal successors, (1728), 4 states have internal predecessors, (1728), 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) [2023-11-06 21:59:58,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1044.0) internal successors, (5220), 5 states have internal predecessors, (5220), 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) [2023-11-06 21:59:58,763 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1044.0) internal successors, (5220), 5 states have internal predecessors, (5220), 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) [2023-11-06 21:59:58,764 INFO L175 Difference]: Start difference. First operand has 60 places, 67 transitions, 356 flow. Second operand 4 states and 1728 transitions. [2023-11-06 21:59:58,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 65 transitions, 475 flow [2023-11-06 21:59:58,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 65 transitions, 427 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 21:59:58,767 INFO L231 Difference]: Finished difference. Result has 59 places, 65 transitions, 319 flow [2023-11-06 21:59:58,767 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=319, PETRI_PLACES=59, PETRI_TRANSITIONS=65} [2023-11-06 21:59:58,768 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 3 predicate places. [2023-11-06 21:59:58,768 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 65 transitions, 319 flow [2023-11-06 21:59:58,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 425.0) internal successors, (1700), 4 states have internal predecessors, (1700), 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) [2023-11-06 21:59:58,769 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:58,769 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 21:59:58,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 21:59:58,769 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:58,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:58,770 INFO L85 PathProgramCache]: Analyzing trace with hash -72428012, now seen corresponding path program 2 times [2023-11-06 21:59:58,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:58,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445670989] [2023-11-06 21:59:58,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:58,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 21:59:58,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:58,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445670989] [2023-11-06 21:59:58,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445670989] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:58,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271700440] [2023-11-06 21:59:58,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:59:58,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:58,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:58,847 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:58,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 21:59:58,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:59:58,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:59:58,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:59:58,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:59,010 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 21:59:59,010 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:59,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271700440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:59,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:59:59,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-06 21:59:59,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255791963] [2023-11-06 21:59:59,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:59,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:59:59,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:59,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:59:59,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-06 21:59:59,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 435 out of 1044 [2023-11-06 21:59:59,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 65 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 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) [2023-11-06 21:59:59,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:59:59,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 435 of 1044 [2023-11-06 21:59:59,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 21:59:59,294 INFO L124 PetriNetUnfolderBase]: 465/825 cut-off events. [2023-11-06 21:59:59,295 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-06 21:59:59,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1779 conditions, 825 events. 465/825 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3740 event pairs, 390 based on Foata normal form. 0/462 useless extension candidates. Maximal degree in co-relation 1769. Up to 805 conditions per place. [2023-11-06 21:59:59,301 INFO L140 encePairwiseOnDemand]: 1040/1044 looper letters, 50 selfloop transitions, 13 changer transitions 0/63 dead transitions. [2023-11-06 21:59:59,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 63 transitions, 429 flow [2023-11-06 21:59:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:59:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 21:59:59,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1339 transitions. [2023-11-06 21:59:59,308 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.427522349936143 [2023-11-06 21:59:59,308 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1339 transitions. [2023-11-06 21:59:59,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1339 transitions. [2023-11-06 21:59:59,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:59:59,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1339 transitions. [2023-11-06 21:59:59,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 446.3333333333333) internal successors, (1339), 3 states have internal predecessors, (1339), 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) [2023-11-06 21:59:59,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:59,320 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1044.0) internal successors, (4176), 4 states have internal predecessors, (4176), 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) [2023-11-06 21:59:59,320 INFO L175 Difference]: Start difference. First operand has 59 places, 65 transitions, 319 flow. Second operand 3 states and 1339 transitions. [2023-11-06 21:59:59,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 63 transitions, 429 flow [2023-11-06 21:59:59,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 63 transitions, 415 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-06 21:59:59,323 INFO L231 Difference]: Finished difference. Result has 57 places, 63 transitions, 315 flow [2023-11-06 21:59:59,323 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=315, PETRI_PLACES=57, PETRI_TRANSITIONS=63} [2023-11-06 21:59:59,324 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2023-11-06 21:59:59,324 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 63 transitions, 315 flow [2023-11-06 21:59:59,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 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) [2023-11-06 21:59:59,326 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:59:59,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:59:59,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 21:59:59,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 21:59:59,538 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 21:59:59,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:59:59,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1755028381, now seen corresponding path program 1 times [2023-11-06 21:59:59,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:59:59,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483327380] [2023-11-06 21:59:59,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:59,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:59:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:59:59,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:59:59,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483327380] [2023-11-06 21:59:59,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483327380] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:59:59,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117110795] [2023-11-06 21:59:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:59:59,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:59:59,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:59,813 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:59:59,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 21:59:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:59:59,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 21:59:59,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:59:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 21:59:59,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:59:59,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117110795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:59:59,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:59:59,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-06 21:59:59,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266614426] [2023-11-06 21:59:59,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:59:59,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:59:59,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:59:59,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:59:59,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:00:00,124 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 1044 [2023-11-06 22:00:00,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 63 transitions, 315 flow. Second operand has 4 states, 4 states have (on average 426.0) internal successors, (1704), 4 states have internal predecessors, (1704), 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) [2023-11-06 22:00:00,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:00:00,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 1044 [2023-11-06 22:00:00,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:00:00,408 INFO L124 PetriNetUnfolderBase]: 463/823 cut-off events. [2023-11-06 22:00:00,408 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-11-06 22:00:00,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1779 conditions, 823 events. 463/823 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3728 event pairs, 390 based on Foata normal form. 2/465 useless extension candidates. Maximal degree in co-relation 1769. Up to 820 conditions per place. [2023-11-06 22:00:00,415 INFO L140 encePairwiseOnDemand]: 1040/1044 looper letters, 55 selfloop transitions, 6 changer transitions 0/61 dead transitions. [2023-11-06 22:00:00,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 61 transitions, 423 flow [2023-11-06 22:00:00,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:00:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:00:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1726 transitions. [2023-11-06 22:00:00,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4133141762452107 [2023-11-06 22:00:00,422 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1726 transitions. [2023-11-06 22:00:00,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1726 transitions. [2023-11-06 22:00:00,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:00:00,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1726 transitions. [2023-11-06 22:00:00,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 431.5) internal successors, (1726), 4 states have internal predecessors, (1726), 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) [2023-11-06 22:00:00,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 1044.0) internal successors, (5220), 5 states have internal predecessors, (5220), 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) [2023-11-06 22:00:00,435 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 1044.0) internal successors, (5220), 5 states have internal predecessors, (5220), 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) [2023-11-06 22:00:00,435 INFO L175 Difference]: Start difference. First operand has 57 places, 63 transitions, 315 flow. Second operand 4 states and 1726 transitions. [2023-11-06 22:00:00,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 61 transitions, 423 flow [2023-11-06 22:00:00,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 61 transitions, 401 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:00:00,438 INFO L231 Difference]: Finished difference. Result has 58 places, 61 transitions, 291 flow [2023-11-06 22:00:00,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1044, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=291, PETRI_PLACES=58, PETRI_TRANSITIONS=61} [2023-11-06 22:00:00,439 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 2 predicate places. [2023-11-06 22:00:00,439 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 61 transitions, 291 flow [2023-11-06 22:00:00,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 426.0) internal successors, (1704), 4 states have internal predecessors, (1704), 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) [2023-11-06 22:00:00,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:00:00,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:00,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:00:00,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-06 22:00:00,647 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:00:00,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:00,647 INFO L85 PathProgramCache]: Analyzing trace with hash 320969114, now seen corresponding path program 1 times [2023-11-06 22:00:00,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:00,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973389284] [2023-11-06 22:00:00,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:00,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:01,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:00:01,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:01,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973389284] [2023-11-06 22:00:01,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973389284] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:00:01,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654308666] [2023-11-06 22:00:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:01,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:00:01,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:00:01,953 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:00:01,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f002f9a-136e-43d8-aa19-c28dbc91a461/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:00:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:02,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-06 22:00:02,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:00:02,212 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:00:02,279 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 22:00:02,389 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-06 22:00:02,389 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-06 22:00:02,452 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:00:02,515 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-06 22:00:02,515 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-06 22:00:02,579 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:00:02,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:00:02,643 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:00:02,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:00:02,709 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 22:00:02,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:00:02,720 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:00:03,868 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* c_~id_3~0 4) c_~get_5~0.offset))) (and (forall ((v_ArrVal_405 (Array Int Int))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (< (select (select .cse0 c_~get_5~0.base) .cse1) 2147483648) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (= (mod (select (select .cse0 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~contains_key_1~0.offset Int) (~id_0~0 Int) (~contains_key_1~0.base Int)) (or (not (= (mod (select (select .cse0 ~contains_key_1~0.base) (+ ~id_0~0 ~contains_key_1~0.offset)) 256) 0)) (not (= (select (select .cse0 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)) 0))))))) (forall ((v_ArrVal_405 (Array Int Int))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (< (select (select .cse2 c_~get_5~0.base) .cse1) 2147483648) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (not (= (mod (select (select .cse2 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0))) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~id_0~0 Int)) (not (= (select (select .cse2 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)) 0)))))) (forall ((v_ArrVal_405 (Array Int Int))) (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~id_0~0 Int)) (let ((.cse3 (select (select .cse4 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)))) (or (< .cse3 0) (< (select (select .cse4 c_~get_5~0.base) .cse1) (+ .cse3 2147483648)) (< 9223372039002259455 .cse3) (= .cse3 0)))) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (not (= (mod (select (select .cse4 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)))))) (forall ((v_ArrVal_405 (Array Int Int))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (= (mod (select (select .cse5 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~contains_key_1~0.offset Int) (~id_0~0 Int) (~contains_key_1~0.base Int)) (let ((.cse6 (select (select .cse5 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)))) (or (< .cse6 0) (< (select (select .cse5 c_~get_5~0.base) .cse1) (+ .cse6 2147483648)) (not (= (mod (select (select .cse5 ~contains_key_1~0.base) (+ ~id_0~0 ~contains_key_1~0.offset)) 256) 0)) (< 9223372039002259455 .cse6) (= .cse6 0))))))))) is different from false [2023-11-06 22:00:04,145 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* c_~id_3~0 4) c_~get_5~0.offset))) (and (forall ((v_ArrVal_405 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (< (select (select .cse0 c_~get_5~0.base) .cse1) 2147483648) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (not (= (mod (select (select .cse0 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0))) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~id_0~0 Int)) (not (= (select (select .cse0 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)) 0)))))) (forall ((v_ArrVal_405 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse2 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (< (select (select .cse2 c_~get_5~0.base) .cse1) 2147483648) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (= (mod (select (select .cse2 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~contains_key_1~0.offset Int) (~id_0~0 Int) (~contains_key_1~0.base Int)) (or (not (= (mod (select (select .cse2 ~contains_key_1~0.base) (+ ~id_0~0 ~contains_key_1~0.offset)) 256) 0)) (not (= (select (select .cse2 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)) 0))))))) (forall ((v_ArrVal_405 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (= (mod (select (select .cse3 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~contains_key_1~0.offset Int) (~id_0~0 Int) (~contains_key_1~0.base Int)) (let ((.cse4 (select (select .cse3 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)))) (or (not (= (mod (select (select .cse3 ~contains_key_1~0.base) (+ ~id_0~0 ~contains_key_1~0.offset)) 256) 0)) (< .cse4 0) (= .cse4 0) (< 9223372039002259455 .cse4) (< (select (select .cse3 c_~get_5~0.base) .cse1) (+ .cse4 2147483648)))))))) (forall ((v_ArrVal_405 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse6 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~id_0~0 Int)) (let ((.cse5 (select (select .cse6 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)))) (or (< .cse5 0) (= .cse5 0) (< 9223372039002259455 .cse5) (< (select (select .cse6 c_~get_5~0.base) .cse1) (+ .cse5 2147483648))))) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (not (= (mod (select (select .cse6 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)))))))) is different from false [2023-11-06 22:00:04,303 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (+ (* c_~id_3~0 4) c_~get_5~0.offset))) (and (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_405 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse0 (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (< (select (select .cse0 c_~get_5~0.base) .cse1) 2147483648) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~contains_key_1~0.offset Int) (~id_0~0 Int) (~contains_key_1~0.base Int)) (or (not (= (select (select .cse0 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)) 0)) (not (= (mod (select (select .cse0 ~contains_key_1~0.base) (+ ~id_0~0 ~contains_key_1~0.offset)) 256) 0)))) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (= (mod (select (select .cse0 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0))))) (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_405 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse2 (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~id_0~0 Int)) (let ((.cse3 (select (select .cse2 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)))) (or (< (select (select .cse2 c_~get_5~0.base) .cse1) (+ .cse3 2147483648)) (< 9223372039002259455 .cse3) (< .cse3 0) (= .cse3 0)))) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (not (= (mod (select (select .cse2 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)))))) (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_405 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse4 (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (< (select (select .cse4 c_~get_5~0.base) .cse1) 2147483648) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~id_0~0 Int)) (not (= (select (select .cse4 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)) 0))) (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (not (= (mod (select (select .cse4 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)))))) (forall ((v_ArrVal_403 (Array Int Int)) (v_ArrVal_405 (Array Int Int)) (v_ArrVal_404 (Array Int Int))) (let ((.cse5 (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_bool_array_~arr~1#1.base| v_ArrVal_403) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_404) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_405))) (or (forall ((~contains_key_4~0.base Int) (~contains_key_4~0.offset Int)) (= (mod (select (select .cse5 ~contains_key_4~0.base) (+ ~contains_key_4~0.offset c_~id_3~0)) 256) 0)) (forall ((~get_2~0.base Int) (~get_2~0.offset Int) (~contains_key_1~0.offset Int) (~id_0~0 Int) (~contains_key_1~0.base Int)) (let ((.cse6 (select (select .cse5 ~get_2~0.base) (+ (* ~id_0~0 4) ~get_2~0.offset)))) (or (< (select (select .cse5 c_~get_5~0.base) .cse1) (+ .cse6 2147483648)) (< 9223372039002259455 .cse6) (< .cse6 0) (= .cse6 0) (not (= (mod (select (select .cse5 ~contains_key_1~0.base) (+ ~id_0~0 ~contains_key_1~0.offset)) 256) 0)))))))))) is different from false [2023-11-06 22:00:06,317 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:06,318 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 769 treesize of output 542 [2023-11-06 22:00:09,904 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:09,909 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 3804577 treesize of output 3667544 [2023-11-06 22:00:14,036 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:14,037 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 18253 treesize of output 18294 [2023-11-06 22:00:15,154 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:15,156 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 18213 treesize of output 18214 [2023-11-06 22:00:16,373 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:16,375 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 18133 treesize of output 18194 [2023-11-06 22:00:17,457 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:17,459 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 18113 treesize of output 18034 [2023-11-06 22:00:18,629 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:18,631 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 17953 treesize of output 17964 [2023-11-06 22:00:19,832 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:19,834 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 17921 treesize of output 17900 [2023-11-06 22:00:20,892 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:20,894 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 17857 treesize of output 17884 [2023-11-06 22:00:22,058 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:22,059 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 17841 treesize of output 17756 [2023-11-06 22:00:23,353 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:23,355 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 17713 treesize of output 17576 [2023-11-06 22:00:24,764 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:24,766 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 17495 treesize of output 15832 [2023-11-06 22:00:25,947 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:25,949 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 15751 treesize of output 14960 [2023-11-06 22:00:27,324 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:27,327 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 14879 treesize of output 14524 [2023-11-06 22:00:28,489 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:28,491 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 14443 treesize of output 12774 [2023-11-06 22:00:29,730 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:29,732 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 12731 treesize of output 11918 [2023-11-06 22:00:31,061 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:31,063 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 11875 treesize of output 11704 [2023-11-06 22:00:32,593 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 22:00:32,596 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 11661 treesize of output 11276