./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:59:23,265 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:59:23,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:59:23,371 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:59:23,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:59:23,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:59:23,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:59:23,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:59:23,415 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:59:23,415 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:59:23,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:59:23,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:59:23,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:59:23,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:59:23,417 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:59:23,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:59:23,418 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:59:23,419 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:23,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:23,420 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:59:23,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:23,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:23,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:23,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:23,420 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:59:23,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:59:23,420 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:59:23,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:59:23,420 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:59:23,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:59:23,421 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:59:23,421 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:59:23,421 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:59:23,421 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:59:23,421 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f794c04b6feffb38c1e5c415a278bf34dda5287d389b184a9a7d818ab0b70e [2024-11-28 03:59:23,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:59:23,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:59:23,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:59:23,775 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:59:23,775 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:59:23,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-28 03:59:26,742 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/data/43dc41f83/d0a95ba4e03d4a8b92f2ba07309341ef/FLAGbf053c413 [2024-11-28 03:59:27,187 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:59:27,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/sv-benchmarks/c/goblint-regression/06-symbeq_06-tricky_address1.i [2024-11-28 03:59:27,208 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/data/43dc41f83/d0a95ba4e03d4a8b92f2ba07309341ef/FLAGbf053c413 [2024-11-28 03:59:27,231 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/data/43dc41f83/d0a95ba4e03d4a8b92f2ba07309341ef [2024-11-28 03:59:27,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:59:27,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:59:27,238 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:27,238 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:59:27,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:59:27,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:27,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60aee084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27, skipping insertion in model container [2024-11-28 03:59:27,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:27,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:59:27,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:27,829 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:59:27,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:27,925 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:59:27,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27 WrapperNode [2024-11-28 03:59:27,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:27,927 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:27,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:59:27,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:59:27,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:27,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:27,983 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 132 [2024-11-28 03:59:27,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:27,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:59:27,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:59:27,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:59:27,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:27,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,027 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-28 03:59:28,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,041 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,057 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:59:28,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:59:28,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:59:28,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:59:28,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (1/1) ... [2024-11-28 03:59:28,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:28,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:28,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:59:28,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:59:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-28 03:59:28,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 03:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 03:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-28 03:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:59:28,134 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-28 03:59:28,135 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-28 03:59:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:59:28,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:59:28,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:59:28,137 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:59:28,297 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:59:28,299 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:59:28,701 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:59:28,701 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:59:29,274 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:59:29,275 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:59:29,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:29 BoogieIcfgContainer [2024-11-28 03:59:29,276 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:59:29,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:59:29,280 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:59:29,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:59:29,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:59:27" (1/3) ... [2024-11-28 03:59:29,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cb055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:59:29, skipping insertion in model container [2024-11-28 03:59:29,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:27" (2/3) ... [2024-11-28 03:59:29,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cb055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:59:29, skipping insertion in model container [2024-11-28 03:59:29,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:29" (3/3) ... [2024-11-28 03:59:29,290 INFO L128 eAbstractionObserver]: Analyzing ICFG 06-symbeq_06-tricky_address1.i [2024-11-28 03:59:29,307 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:59:29,310 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 06-symbeq_06-tricky_address1.i that has 2 procedures, 27 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-11-28 03:59:29,310 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:59:29,362 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 03:59:29,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 27 transitions, 58 flow [2024-11-28 03:59:29,450 INFO L124 PetriNetUnfolderBase]: 1/26 cut-off events. [2024-11-28 03:59:29,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:59:29,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 26 events. 1/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 7. Up to 2 conditions per place. [2024-11-28 03:59:29,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 27 transitions, 58 flow [2024-11-28 03:59:29,460 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 29 places, 26 transitions, 55 flow [2024-11-28 03:59:29,477 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:59:29,495 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20212c83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:59:29,495 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-28 03:59:29,503 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:59:29,503 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-28 03:59:29,503 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:59:29,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:29,504 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 03:59:29,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:29,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:29,513 INFO L85 PathProgramCache]: Analyzing trace with hash 343165, now seen corresponding path program 1 times [2024-11-28 03:59:29,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:29,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803427602] [2024-11-28 03:59:29,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:29,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:29,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:29,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803427602] [2024-11-28 03:59:29,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803427602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:29,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:29,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:59:29,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055277952] [2024-11-28 03:59:29,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:29,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:29,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:29,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:29,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:30,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 03:59:30,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 55 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-28 03:59:30,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:30,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 03:59:30,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:30,179 INFO L124 PetriNetUnfolderBase]: 37/119 cut-off events. [2024-11-28 03:59:30,179 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 03:59:30,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 119 events. 37/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 399 event pairs, 36 based on Foata normal form. 1/109 useless extension candidates. Maximal degree in co-relation 192. Up to 92 conditions per place. [2024-11-28 03:59:30,181 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 18 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-11-28 03:59:30,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 101 flow [2024-11-28 03:59:30,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:59:30,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:59:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2024-11-28 03:59:30,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-11-28 03:59:30,202 INFO L175 Difference]: Start difference. First operand has 29 places, 26 transitions, 55 flow. Second operand 4 states and 56 transitions. [2024-11-28 03:59:30,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 101 flow [2024-11-28 03:59:30,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 28 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:59:30,214 INFO L231 Difference]: Finished difference. Result has 33 places, 28 transitions, 78 flow [2024-11-28 03:59:30,218 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=78, PETRI_PLACES=33, PETRI_TRANSITIONS=28} [2024-11-28 03:59:30,223 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2024-11-28 03:59:30,224 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 28 transitions, 78 flow [2024-11-28 03:59:30,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-28 03:59:30,224 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:30,225 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-28 03:59:30,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:59:30,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:30,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:30,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1633631322, now seen corresponding path program 1 times [2024-11-28 03:59:30,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:30,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001380655] [2024-11-28 03:59:30,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:30,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:30,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:30,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:30,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:30,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001380655] [2024-11-28 03:59:30,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001380655] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:30,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892352449] [2024-11-28 03:59:30,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:30,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:30,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:30,521 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:30,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:59:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:30,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:59:30,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:30,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:30,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892352449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:30,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:30,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-28 03:59:30,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687577327] [2024-11-28 03:59:30,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:30,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:59:30,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:30,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:59:30,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:59:30,738 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 03:59:30,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 78 flow. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2024-11-28 03:59:30,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:30,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 03:59:30,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:30,927 INFO L124 PetriNetUnfolderBase]: 37/118 cut-off events. [2024-11-28 03:59:30,927 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:59:30,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 118 events. 37/118 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 395 event pairs, 36 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 209. Up to 87 conditions per place. [2024-11-28 03:59:30,930 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 14 selfloop transitions, 6 changer transitions 0/27 dead transitions. [2024-11-28 03:59:30,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 27 transitions, 114 flow [2024-11-28 03:59:30,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:59:30,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:59:30,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 69 transitions. [2024-11-28 03:59:30,933 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-28 03:59:30,934 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 78 flow. Second operand 6 states and 69 transitions. [2024-11-28 03:59:30,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 27 transitions, 114 flow [2024-11-28 03:59:30,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 112 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:59:30,936 INFO L231 Difference]: Finished difference. Result has 36 places, 27 transitions, 84 flow [2024-11-28 03:59:30,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=36, PETRI_TRANSITIONS=27} [2024-11-28 03:59:30,937 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 7 predicate places. [2024-11-28 03:59:30,937 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 27 transitions, 84 flow [2024-11-28 03:59:30,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 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) [2024-11-28 03:59:30,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:30,938 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-28 03:59:30,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:31,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:31,139 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:31,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:31,139 INFO L85 PathProgramCache]: Analyzing trace with hash -897036230, now seen corresponding path program 1 times [2024-11-28 03:59:31,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:31,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998654345] [2024-11-28 03:59:31,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:31,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:31,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:59:31,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:31,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998654345] [2024-11-28 03:59:31,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998654345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:31,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:31,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:59:31,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964563937] [2024-11-28 03:59:31,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:31,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:59:31,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:31,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:59:31,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:59:31,279 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 03:59:31,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 27 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-28 03:59:31,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:31,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 03:59:31,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:31,391 INFO L124 PetriNetUnfolderBase]: 37/117 cut-off events. [2024-11-28 03:59:31,391 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-28 03:59:31,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 117 events. 37/117 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 391 event pairs, 36 based on Foata normal form. 1/108 useless extension candidates. Maximal degree in co-relation 205. Up to 90 conditions per place. [2024-11-28 03:59:31,397 INFO L140 encePairwiseOnDemand]: 24/27 looper letters, 15 selfloop transitions, 4 changer transitions 0/26 dead transitions. [2024-11-28 03:59:31,397 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 26 transitions, 118 flow [2024-11-28 03:59:31,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:59:31,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 03:59:31,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-28 03:59:31,398 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-11-28 03:59:31,399 INFO L175 Difference]: Start difference. First operand has 36 places, 27 transitions, 84 flow. Second operand 3 states and 42 transitions. [2024-11-28 03:59:31,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 26 transitions, 118 flow [2024-11-28 03:59:31,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 96 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-28 03:59:31,400 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 66 flow [2024-11-28 03:59:31,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2024-11-28 03:59:31,404 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 2 predicate places. [2024-11-28 03:59:31,404 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 66 flow [2024-11-28 03:59:31,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-28 03:59:31,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:31,405 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:31,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:59:31,405 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:31,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:31,406 INFO L85 PathProgramCache]: Analyzing trace with hash -266280113, now seen corresponding path program 1 times [2024-11-28 03:59:31,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:31,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086987281] [2024-11-28 03:59:31,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:31,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:31,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:31,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:31,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086987281] [2024-11-28 03:59:31,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086987281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:31,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902453409] [2024-11-28 03:59:31,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:31,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:31,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:31,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:31,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:59:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:31,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:59:31,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:31,758 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:31,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:31,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902453409] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:31,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:31,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-28 03:59:31,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963684430] [2024-11-28 03:59:31,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:31,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:59:31,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:31,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:59:31,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:59:31,833 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 03:59:31,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 66 flow. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-11-28 03:59:31,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:31,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 03:59:31,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:32,025 INFO L124 PetriNetUnfolderBase]: 37/121 cut-off events. [2024-11-28 03:59:32,025 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-11-28 03:59:32,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 121 events. 37/121 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 388 event pairs, 36 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 198. Up to 88 conditions per place. [2024-11-28 03:59:32,028 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 15 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2024-11-28 03:59:32,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 29 transitions, 125 flow [2024-11-28 03:59:32,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:59:32,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:59:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 80 transitions. [2024-11-28 03:59:32,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42328042328042326 [2024-11-28 03:59:32,031 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 66 flow. Second operand 7 states and 80 transitions. [2024-11-28 03:59:32,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 29 transitions, 125 flow [2024-11-28 03:59:32,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 111 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:59:32,034 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 92 flow [2024-11-28 03:59:32,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=92, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-28 03:59:32,037 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 8 predicate places. [2024-11-28 03:59:32,037 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 92 flow [2024-11-28 03:59:32,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2024-11-28 03:59:32,037 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:32,037 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:32,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:59:32,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:32,238 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:32,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:32,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1621929873, now seen corresponding path program 2 times [2024-11-28 03:59:32,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:32,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378516896] [2024-11-28 03:59:32,239 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:59:32,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:32,309 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:59:32,309 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:59:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:59:33,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:33,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378516896] [2024-11-28 03:59:33,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378516896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:33,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:33,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:33,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205615915] [2024-11-28 03:59:33,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:33,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:59:33,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:33,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:59:33,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:33,684 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 03:59:33,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-28 03:59:33,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:33,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 03:59:33,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:34,057 INFO L124 PetriNetUnfolderBase]: 43/128 cut-off events. [2024-11-28 03:59:34,058 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-28 03:59:34,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 128 events. 43/128 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 383 event pairs, 18 based on Foata normal form. 7/129 useless extension candidates. Maximal degree in co-relation 222. Up to 73 conditions per place. [2024-11-28 03:59:34,060 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 28 selfloop transitions, 5 changer transitions 6/44 dead transitions. [2024-11-28 03:59:34,060 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 200 flow [2024-11-28 03:59:34,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:59:34,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:59:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 86 transitions. [2024-11-28 03:59:34,066 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2024-11-28 03:59:34,066 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 92 flow. Second operand 6 states and 86 transitions. [2024-11-28 03:59:34,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 200 flow [2024-11-28 03:59:34,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 44 transitions, 196 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:59:34,068 INFO L231 Difference]: Finished difference. Result has 43 places, 30 transitions, 115 flow [2024-11-28 03:59:34,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=115, PETRI_PLACES=43, PETRI_TRANSITIONS=30} [2024-11-28 03:59:34,069 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 14 predicate places. [2024-11-28 03:59:34,070 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 30 transitions, 115 flow [2024-11-28 03:59:34,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-28 03:59:34,071 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:34,071 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:34,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:59:34,072 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:34,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:34,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1621158921, now seen corresponding path program 1 times [2024-11-28 03:59:34,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:34,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338764694] [2024-11-28 03:59:34,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:34,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:34,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:34,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338764694] [2024-11-28 03:59:34,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338764694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:34,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956428053] [2024-11-28 03:59:34,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:34,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:34,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:34,278 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:34,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:59:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:34,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:59:34,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:34,426 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:34,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956428053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:34,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:34,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-28 03:59:34,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073385604] [2024-11-28 03:59:34,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:34,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:59:34,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:34,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:59:34,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:59:34,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 03:59:34,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 30 transitions, 115 flow. Second operand has 18 states, 18 states have (on average 9.277777777777779) internal successors, (167), 18 states have internal predecessors, (167), 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) [2024-11-28 03:59:34,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:34,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 03:59:34,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:34,757 INFO L124 PetriNetUnfolderBase]: 27/117 cut-off events. [2024-11-28 03:59:34,758 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-11-28 03:59:34,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 117 events. 27/117 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 326 event pairs, 26 based on Foata normal form. 4/115 useless extension candidates. Maximal degree in co-relation 253. Up to 69 conditions per place. [2024-11-28 03:59:34,759 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 16 selfloop transitions, 15 changer transitions 0/38 dead transitions. [2024-11-28 03:59:34,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 38 transitions, 225 flow [2024-11-28 03:59:34,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:59:34,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 03:59:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 154 transitions. [2024-11-28 03:59:34,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3802469135802469 [2024-11-28 03:59:34,761 INFO L175 Difference]: Start difference. First operand has 43 places, 30 transitions, 115 flow. Second operand 15 states and 154 transitions. [2024-11-28 03:59:34,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 38 transitions, 225 flow [2024-11-28 03:59:34,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 38 transitions, 216 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-28 03:59:34,764 INFO L231 Difference]: Finished difference. Result has 57 places, 38 transitions, 203 flow [2024-11-28 03:59:34,764 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=203, PETRI_PLACES=57, PETRI_TRANSITIONS=38} [2024-11-28 03:59:34,764 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 28 predicate places. [2024-11-28 03:59:34,765 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 38 transitions, 203 flow [2024-11-28 03:59:34,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.277777777777779) internal successors, (167), 18 states have internal predecessors, (167), 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) [2024-11-28 03:59:34,765 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:34,765 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:34,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:34,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 03:59:34,969 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:34,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1399514679, now seen corresponding path program 2 times [2024-11-28 03:59:34,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:34,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331672669] [2024-11-28 03:59:34,970 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:59:34,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:35,037 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:59:35,039 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:59:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 03:59:35,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:35,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331672669] [2024-11-28 03:59:35,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331672669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:35,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:35,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:35,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101403310] [2024-11-28 03:59:35,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:35,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:59:35,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:35,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:59:35,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:35,627 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 03:59:35,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 38 transitions, 203 flow. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-28 03:59:35,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:35,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 03:59:35,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:35,842 INFO L124 PetriNetUnfolderBase]: 30/119 cut-off events. [2024-11-28 03:59:35,842 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-11-28 03:59:35,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 307 conditions, 119 events. 30/119 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 319 event pairs, 8 based on Foata normal form. 14/133 useless extension candidates. Maximal degree in co-relation 208. Up to 51 conditions per place. [2024-11-28 03:59:35,846 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 38 selfloop transitions, 6 changer transitions 4/53 dead transitions. [2024-11-28 03:59:35,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 53 transitions, 341 flow [2024-11-28 03:59:35,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:59:35,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:59:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-11-28 03:59:35,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2024-11-28 03:59:35,848 INFO L175 Difference]: Start difference. First operand has 57 places, 38 transitions, 203 flow. Second operand 6 states and 87 transitions. [2024-11-28 03:59:35,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 53 transitions, 341 flow [2024-11-28 03:59:35,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 53 transitions, 331 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 03:59:35,854 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 233 flow [2024-11-28 03:59:35,854 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=233, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2024-11-28 03:59:35,855 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 33 predicate places. [2024-11-28 03:59:35,855 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 233 flow [2024-11-28 03:59:35,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-11-28 03:59:35,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:35,855 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:35,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:59:35,856 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:35,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:35,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1121964422, now seen corresponding path program 1 times [2024-11-28 03:59:35,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:35,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609368294] [2024-11-28 03:59:35,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:35,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:36,258 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:36,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:36,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609368294] [2024-11-28 03:59:36,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609368294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:36,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904247732] [2024-11-28 03:59:36,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:36,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:36,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:36,263 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:36,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:59:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:36,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:59:36,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:36,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:36,721 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:36,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904247732] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:36,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:36,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-28 03:59:36,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055553654] [2024-11-28 03:59:36,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:36,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:59:36,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:36,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:59:36,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:59:36,757 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 03:59:36,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 233 flow. Second operand has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 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) [2024-11-28 03:59:36,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:36,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 03:59:36,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:37,053 INFO L124 PetriNetUnfolderBase]: 26/123 cut-off events. [2024-11-28 03:59:37,053 INFO L125 PetriNetUnfolderBase]: For 168/169 co-relation queries the response was YES. [2024-11-28 03:59:37,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 123 events. 26/123 cut-off events. For 168/169 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 296 event pairs, 22 based on Foata normal form. 3/126 useless extension candidates. Maximal degree in co-relation 336. Up to 68 conditions per place. [2024-11-28 03:59:37,058 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 19 selfloop transitions, 21 changer transitions 0/47 dead transitions. [2024-11-28 03:59:37,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 47 transitions, 367 flow [2024-11-28 03:59:37,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 03:59:37,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-28 03:59:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 207 transitions. [2024-11-28 03:59:37,059 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36507936507936506 [2024-11-28 03:59:37,059 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 233 flow. Second operand 21 states and 207 transitions. [2024-11-28 03:59:37,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 47 transitions, 367 flow [2024-11-28 03:59:37,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 47 transitions, 359 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-28 03:59:37,066 INFO L231 Difference]: Finished difference. Result has 82 places, 47 transitions, 336 flow [2024-11-28 03:59:37,066 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=336, PETRI_PLACES=82, PETRI_TRANSITIONS=47} [2024-11-28 03:59:37,069 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 53 predicate places. [2024-11-28 03:59:37,069 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 47 transitions, 336 flow [2024-11-28 03:59:37,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.434782608695652) internal successors, (217), 23 states have internal predecessors, (217), 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) [2024-11-28 03:59:37,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:37,070 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:37,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:37,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-28 03:59:37,274 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:37,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:37,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1992772691, now seen corresponding path program 2 times [2024-11-28 03:59:37,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:37,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387705478] [2024-11-28 03:59:37,275 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:59:37,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:37,379 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:59:37,380 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:59:41,773 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:59:41,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:41,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387705478] [2024-11-28 03:59:41,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387705478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:41,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:41,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:59:41,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818771324] [2024-11-28 03:59:41,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:41,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:59:41,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:41,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:59:41,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:59:41,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-28 03:59:41,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 47 transitions, 336 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 03:59:41,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:41,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-28 03:59:41,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:45,119 INFO L124 PetriNetUnfolderBase]: 58/184 cut-off events. [2024-11-28 03:59:45,119 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2024-11-28 03:59:45,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 572 conditions, 184 events. 58/184 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 577 event pairs, 12 based on Foata normal form. 3/187 useless extension candidates. Maximal degree in co-relation 409. Up to 39 conditions per place. [2024-11-28 03:59:45,121 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 60 selfloop transitions, 19 changer transitions 6/86 dead transitions. [2024-11-28 03:59:45,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 86 transitions, 632 flow [2024-11-28 03:59:45,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:59:45,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 03:59:45,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 119 transitions. [2024-11-28 03:59:45,124 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33903133903133903 [2024-11-28 03:59:45,124 INFO L175 Difference]: Start difference. First operand has 82 places, 47 transitions, 336 flow. Second operand 13 states and 119 transitions. [2024-11-28 03:59:45,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 86 transitions, 632 flow [2024-11-28 03:59:45,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 86 transitions, 589 flow, removed 1 selfloop flow, removed 13 redundant places. [2024-11-28 03:59:45,130 INFO L231 Difference]: Finished difference. Result has 86 places, 61 transitions, 416 flow [2024-11-28 03:59:45,131 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=416, PETRI_PLACES=86, PETRI_TRANSITIONS=61} [2024-11-28 03:59:45,131 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 57 predicate places. [2024-11-28 03:59:45,131 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 61 transitions, 416 flow [2024-11-28 03:59:45,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 03:59:45,132 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:45,132 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:45,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:59:45,132 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:45,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:45,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1115130977, now seen corresponding path program 3 times [2024-11-28 03:59:45,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:45,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081264051] [2024-11-28 03:59:45,133 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:59:45,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:45,218 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 03:59:45,218 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:59:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:59:47,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:47,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081264051] [2024-11-28 03:59:47,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081264051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:47,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:47,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:59:47,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574968475] [2024-11-28 03:59:47,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:47,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:59:47,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:47,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:59:47,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:59:47,902 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-28 03:59:47,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 61 transitions, 416 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 03:59:47,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:47,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-28 03:59:47,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:49,413 INFO L124 PetriNetUnfolderBase]: 64/207 cut-off events. [2024-11-28 03:59:49,414 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-11-28 03:59:49,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 207 events. 64/207 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 722 event pairs, 18 based on Foata normal form. 3/210 useless extension candidates. Maximal degree in co-relation 642. Up to 52 conditions per place. [2024-11-28 03:59:49,415 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 60 selfloop transitions, 28 changer transitions 7/96 dead transitions. [2024-11-28 03:59:49,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 783 flow [2024-11-28 03:59:49,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:59:49,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-28 03:59:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 133 transitions. [2024-11-28 03:59:49,417 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.289760348583878 [2024-11-28 03:59:49,417 INFO L175 Difference]: Start difference. First operand has 86 places, 61 transitions, 416 flow. Second operand 17 states and 133 transitions. [2024-11-28 03:59:49,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 783 flow [2024-11-28 03:59:49,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 96 transitions, 752 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 03:59:49,423 INFO L231 Difference]: Finished difference. Result has 102 places, 72 transitions, 554 flow [2024-11-28 03:59:49,423 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=554, PETRI_PLACES=102, PETRI_TRANSITIONS=72} [2024-11-28 03:59:49,424 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 73 predicate places. [2024-11-28 03:59:49,424 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 72 transitions, 554 flow [2024-11-28 03:59:49,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 03:59:49,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:49,424 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:49,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:59:49,425 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:49,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:49,425 INFO L85 PathProgramCache]: Analyzing trace with hash 531444560, now seen corresponding path program 1 times [2024-11-28 03:59:49,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:49,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197119265] [2024-11-28 03:59:49,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:49,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:53,485 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 03:59:53,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:53,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197119265] [2024-11-28 03:59:53,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197119265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:53,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:53,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:59:53,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832314046] [2024-11-28 03:59:53,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:53,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:59:53,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:53,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:59:53,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:59:53,555 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-28 03:59:53,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 72 transitions, 554 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 03:59:53,555 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:59:53,555 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-28 03:59:53,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:59:55,037 INFO L124 PetriNetUnfolderBase]: 67/218 cut-off events. [2024-11-28 03:59:55,037 INFO L125 PetriNetUnfolderBase]: For 421/421 co-relation queries the response was YES. [2024-11-28 03:59:55,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 815 conditions, 218 events. 67/218 cut-off events. For 421/421 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 785 event pairs, 28 based on Foata normal form. 3/221 useless extension candidates. Maximal degree in co-relation 721. Up to 106 conditions per place. [2024-11-28 03:59:55,040 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 65 selfloop transitions, 28 changer transitions 5/99 dead transitions. [2024-11-28 03:59:55,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 99 transitions, 882 flow [2024-11-28 03:59:55,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:59:55,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 03:59:55,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 126 transitions. [2024-11-28 03:59:55,043 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2916666666666667 [2024-11-28 03:59:55,043 INFO L175 Difference]: Start difference. First operand has 102 places, 72 transitions, 554 flow. Second operand 16 states and 126 transitions. [2024-11-28 03:59:55,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 99 transitions, 882 flow [2024-11-28 03:59:55,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 99 transitions, 833 flow, removed 12 selfloop flow, removed 4 redundant places. [2024-11-28 03:59:55,053 INFO L231 Difference]: Finished difference. Result has 117 places, 81 transitions, 670 flow [2024-11-28 03:59:55,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=670, PETRI_PLACES=117, PETRI_TRANSITIONS=81} [2024-11-28 03:59:55,054 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 88 predicate places. [2024-11-28 03:59:55,054 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 81 transitions, 670 flow [2024-11-28 03:59:55,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 03:59:55,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:59:55,055 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:55,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:59:55,055 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 03:59:55,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:55,055 INFO L85 PathProgramCache]: Analyzing trace with hash 504632660, now seen corresponding path program 2 times [2024-11-28 03:59:55,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:55,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460780448] [2024-11-28 03:59:55,056 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:59:55,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:55,099 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 03:59:55,099 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:00:01,440 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:01,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:01,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460780448] [2024-11-28 04:00:01,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460780448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:01,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:01,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:00:01,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832694279] [2024-11-28 04:00:01,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:01,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:01,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:01,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:01,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:00:01,465 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-28 04:00:01,465 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 81 transitions, 670 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 04:00:01,465 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:01,466 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-28 04:00:01,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:03,025 INFO L124 PetriNetUnfolderBase]: 70/230 cut-off events. [2024-11-28 04:00:03,025 INFO L125 PetriNetUnfolderBase]: For 486/486 co-relation queries the response was YES. [2024-11-28 04:00:03,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 230 events. 70/230 cut-off events. For 486/486 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 884 event pairs, 32 based on Foata normal form. 3/233 useless extension candidates. Maximal degree in co-relation 808. Up to 113 conditions per place. [2024-11-28 04:00:03,027 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 62 selfloop transitions, 34 changer transitions 2/99 dead transitions. [2024-11-28 04:00:03,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 99 transitions, 946 flow [2024-11-28 04:00:03,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:00:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:00:03,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 124 transitions. [2024-11-28 04:00:03,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.30617283950617286 [2024-11-28 04:00:03,031 INFO L175 Difference]: Start difference. First operand has 117 places, 81 transitions, 670 flow. Second operand 15 states and 124 transitions. [2024-11-28 04:00:03,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 99 transitions, 946 flow [2024-11-28 04:00:03,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 99 transitions, 917 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-28 04:00:03,039 INFO L231 Difference]: Finished difference. Result has 130 places, 86 transitions, 775 flow [2024-11-28 04:00:03,040 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=775, PETRI_PLACES=130, PETRI_TRANSITIONS=86} [2024-11-28 04:00:03,041 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 101 predicate places. [2024-11-28 04:00:03,041 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 86 transitions, 775 flow [2024-11-28 04:00:03,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 04:00:03,041 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:03,041 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:03,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:00:03,042 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:03,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:03,042 INFO L85 PathProgramCache]: Analyzing trace with hash 532367120, now seen corresponding path program 3 times [2024-11-28 04:00:03,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:03,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057810650] [2024-11-28 04:00:03,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:00:03,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:03,073 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:00:03,074 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:00:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:09,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:09,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057810650] [2024-11-28 04:00:09,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057810650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:09,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:09,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:00:09,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561318054] [2024-11-28 04:00:09,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:09,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:09,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:09,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:09,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:00:09,439 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-28 04:00:09,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 86 transitions, 775 flow. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 04:00:09,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:09,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-28 04:00:09,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:10,931 INFO L124 PetriNetUnfolderBase]: 75/247 cut-off events. [2024-11-28 04:00:10,931 INFO L125 PetriNetUnfolderBase]: For 654/654 co-relation queries the response was YES. [2024-11-28 04:00:10,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 247 events. 75/247 cut-off events. For 654/654 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1019 event pairs, 27 based on Foata normal form. 3/250 useless extension candidates. Maximal degree in co-relation 949. Up to 110 conditions per place. [2024-11-28 04:00:10,934 INFO L140 encePairwiseOnDemand]: 15/27 looper letters, 72 selfloop transitions, 37 changer transitions 2/112 dead transitions. [2024-11-28 04:00:10,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 112 transitions, 1132 flow [2024-11-28 04:00:10,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:00:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-28 04:00:10,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 124 transitions. [2024-11-28 04:00:10,936 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.30617283950617286 [2024-11-28 04:00:10,936 INFO L175 Difference]: Start difference. First operand has 130 places, 86 transitions, 775 flow. Second operand 15 states and 124 transitions. [2024-11-28 04:00:10,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 112 transitions, 1132 flow [2024-11-28 04:00:10,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 112 transitions, 1088 flow, removed 4 selfloop flow, removed 7 redundant places. [2024-11-28 04:00:10,947 INFO L231 Difference]: Finished difference. Result has 141 places, 94 transitions, 892 flow [2024-11-28 04:00:10,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=892, PETRI_PLACES=141, PETRI_TRANSITIONS=94} [2024-11-28 04:00:10,949 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 112 predicate places. [2024-11-28 04:00:10,949 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 94 transitions, 892 flow [2024-11-28 04:00:10,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2024-11-28 04:00:10,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:10,949 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:10,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:00:10,949 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:10,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:10,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1545929962, now seen corresponding path program 4 times [2024-11-28 04:00:10,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:10,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659871561] [2024-11-28 04:00:10,951 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:00:10,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:11,068 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:00:11,068 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:00:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:16,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:16,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659871561] [2024-11-28 04:00:16,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659871561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:16,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:16,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:00:16,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592403147] [2024-11-28 04:00:16,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:16,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:16,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:16,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:16,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:00:16,574 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-11-28 04:00:16,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 94 transitions, 892 flow. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-28 04:00:16,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:16,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-11-28 04:00:16,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:18,062 INFO L124 PetriNetUnfolderBase]: 74/253 cut-off events. [2024-11-28 04:00:18,062 INFO L125 PetriNetUnfolderBase]: For 828/828 co-relation queries the response was YES. [2024-11-28 04:00:18,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 253 events. 74/253 cut-off events. For 828/828 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1075 event pairs, 35 based on Foata normal form. 3/256 useless extension candidates. Maximal degree in co-relation 1052. Up to 117 conditions per place. [2024-11-28 04:00:18,068 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 71 selfloop transitions, 38 changer transitions 2/113 dead transitions. [2024-11-28 04:00:18,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 113 transitions, 1245 flow [2024-11-28 04:00:18,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:00:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:00:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 130 transitions. [2024-11-28 04:00:18,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3439153439153439 [2024-11-28 04:00:18,072 INFO L175 Difference]: Start difference. First operand has 141 places, 94 transitions, 892 flow. Second operand 14 states and 130 transitions. [2024-11-28 04:00:18,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 113 transitions, 1245 flow [2024-11-28 04:00:18,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 113 transitions, 1180 flow, removed 8 selfloop flow, removed 8 redundant places. [2024-11-28 04:00:18,089 INFO L231 Difference]: Finished difference. Result has 151 places, 100 transitions, 1010 flow [2024-11-28 04:00:18,089 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1010, PETRI_PLACES=151, PETRI_TRANSITIONS=100} [2024-11-28 04:00:18,090 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 122 predicate places. [2024-11-28 04:00:18,090 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 100 transitions, 1010 flow [2024-11-28 04:00:18,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 10 states have internal predecessors, (64), 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) [2024-11-28 04:00:18,090 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:18,090 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:18,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:00:18,091 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:18,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:18,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1101263747, now seen corresponding path program 4 times [2024-11-28 04:00:18,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:18,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524187854] [2024-11-28 04:00:18,092 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:00:18,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:18,168 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:00:18,169 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:00:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:19,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:19,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524187854] [2024-11-28 04:00:19,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524187854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:19,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:19,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:00:19,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905536193] [2024-11-28 04:00:19,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:19,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:00:19,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:19,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:00:19,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:00:19,539 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 04:00:19,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 100 transitions, 1010 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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) [2024-11-28 04:00:19,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:19,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 04:00:19,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:20,363 INFO L124 PetriNetUnfolderBase]: 52/241 cut-off events. [2024-11-28 04:00:20,363 INFO L125 PetriNetUnfolderBase]: For 1024/1024 co-relation queries the response was YES. [2024-11-28 04:00:20,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 241 events. 52/241 cut-off events. For 1024/1024 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1182 event pairs, 13 based on Foata normal form. 9/250 useless extension candidates. Maximal degree in co-relation 1021. Up to 79 conditions per place. [2024-11-28 04:00:20,367 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 61 selfloop transitions, 30 changer transitions 11/122 dead transitions. [2024-11-28 04:00:20,368 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 122 transitions, 1325 flow [2024-11-28 04:00:20,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:00:20,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-28 04:00:20,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 182 transitions. [2024-11-28 04:00:20,369 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4212962962962963 [2024-11-28 04:00:20,369 INFO L175 Difference]: Start difference. First operand has 151 places, 100 transitions, 1010 flow. Second operand 16 states and 182 transitions. [2024-11-28 04:00:20,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 122 transitions, 1325 flow [2024-11-28 04:00:20,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 122 transitions, 1293 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-28 04:00:20,389 INFO L231 Difference]: Finished difference. Result has 167 places, 102 transitions, 1065 flow [2024-11-28 04:00:20,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=978, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1065, PETRI_PLACES=167, PETRI_TRANSITIONS=102} [2024-11-28 04:00:20,391 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 138 predicate places. [2024-11-28 04:00:20,392 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 102 transitions, 1065 flow [2024-11-28 04:00:20,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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) [2024-11-28 04:00:20,393 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:20,393 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:20,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 04:00:20,393 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:20,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:20,394 INFO L85 PathProgramCache]: Analyzing trace with hash -675525074, now seen corresponding path program 1 times [2024-11-28 04:00:20,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:20,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144894575] [2024-11-28 04:00:20,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:20,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:24,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:24,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144894575] [2024-11-28 04:00:24,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144894575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:24,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:24,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:00:24,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659715217] [2024-11-28 04:00:24,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:24,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:24,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:24,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:24,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:00:24,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-11-28 04:00:24,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 102 transitions, 1065 flow. Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 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) [2024-11-28 04:00:24,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:24,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-11-28 04:00:24,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:25,450 INFO L124 PetriNetUnfolderBase]: 64/243 cut-off events. [2024-11-28 04:00:25,450 INFO L125 PetriNetUnfolderBase]: For 1106/1106 co-relation queries the response was YES. [2024-11-28 04:00:25,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1198 conditions, 243 events. 64/243 cut-off events. For 1106/1106 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1063 event pairs, 23 based on Foata normal form. 2/245 useless extension candidates. Maximal degree in co-relation 1090. Up to 79 conditions per place. [2024-11-28 04:00:25,453 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 62 selfloop transitions, 34 changer transitions 4/112 dead transitions. [2024-11-28 04:00:25,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 112 transitions, 1315 flow [2024-11-28 04:00:25,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:00:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-28 04:00:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 103 transitions. [2024-11-28 04:00:25,455 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31790123456790126 [2024-11-28 04:00:25,455 INFO L175 Difference]: Start difference. First operand has 167 places, 102 transitions, 1065 flow. Second operand 12 states and 103 transitions. [2024-11-28 04:00:25,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 112 transitions, 1315 flow [2024-11-28 04:00:25,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 112 transitions, 1233 flow, removed 9 selfloop flow, removed 17 redundant places. [2024-11-28 04:00:25,468 INFO L231 Difference]: Finished difference. Result has 156 places, 101 transitions, 1043 flow [2024-11-28 04:00:25,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1043, PETRI_PLACES=156, PETRI_TRANSITIONS=101} [2024-11-28 04:00:25,469 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 127 predicate places. [2024-11-28 04:00:25,469 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 101 transitions, 1043 flow [2024-11-28 04:00:25,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 10 states have internal predecessors, (65), 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) [2024-11-28 04:00:25,469 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:25,469 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:25,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:00:25,470 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:25,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:25,471 INFO L85 PathProgramCache]: Analyzing trace with hash -676488126, now seen corresponding path program 1 times [2024-11-28 04:00:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:25,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043847704] [2024-11-28 04:00:25,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:25,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:29,171 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:29,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:29,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043847704] [2024-11-28 04:00:29,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043847704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:29,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:29,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:00:29,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020521194] [2024-11-28 04:00:29,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:29,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:29,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:29,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:29,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:00:29,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-28 04:00:29,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 101 transitions, 1043 flow. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2024-11-28 04:00:29,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:29,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-28 04:00:29,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:30,743 INFO L124 PetriNetUnfolderBase]: 53/224 cut-off events. [2024-11-28 04:00:30,743 INFO L125 PetriNetUnfolderBase]: For 924/924 co-relation queries the response was YES. [2024-11-28 04:00:30,745 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1082 conditions, 224 events. 53/224 cut-off events. For 924/924 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1004 event pairs, 22 based on Foata normal form. 3/224 useless extension candidates. Maximal degree in co-relation 983. Up to 111 conditions per place. [2024-11-28 04:00:30,746 INFO L140 encePairwiseOnDemand]: 16/27 looper letters, 56 selfloop transitions, 33 changer transitions 7/113 dead transitions. [2024-11-28 04:00:30,746 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 113 transitions, 1278 flow [2024-11-28 04:00:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:00:30,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 04:00:30,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 128 transitions. [2024-11-28 04:00:30,747 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3646723646723647 [2024-11-28 04:00:30,747 INFO L175 Difference]: Start difference. First operand has 156 places, 101 transitions, 1043 flow. Second operand 13 states and 128 transitions. [2024-11-28 04:00:30,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 113 transitions, 1278 flow [2024-11-28 04:00:30,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 113 transitions, 1215 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-11-28 04:00:30,757 INFO L231 Difference]: Finished difference. Result has 160 places, 97 transitions, 1016 flow [2024-11-28 04:00:30,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=980, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1016, PETRI_PLACES=160, PETRI_TRANSITIONS=97} [2024-11-28 04:00:30,758 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 131 predicate places. [2024-11-28 04:00:30,758 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 97 transitions, 1016 flow [2024-11-28 04:00:30,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2024-11-28 04:00:30,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:30,758 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:30,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:00:30,759 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:30,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:30,759 INFO L85 PathProgramCache]: Analyzing trace with hash -705087486, now seen corresponding path program 2 times [2024-11-28 04:00:30,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:30,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605554945] [2024-11-28 04:00:30,760 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:00:30,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:30,786 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:00:30,787 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:00:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:35,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:35,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605554945] [2024-11-28 04:00:35,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605554945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:35,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:35,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:00:35,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630052837] [2024-11-28 04:00:35,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:35,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:35,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:35,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:35,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:00:35,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-28 04:00:35,271 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 97 transitions, 1016 flow. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2024-11-28 04:00:35,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:35,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-28 04:00:35,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:36,987 INFO L124 PetriNetUnfolderBase]: 51/224 cut-off events. [2024-11-28 04:00:36,987 INFO L125 PetriNetUnfolderBase]: For 1054/1054 co-relation queries the response was YES. [2024-11-28 04:00:36,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 224 events. 51/224 cut-off events. For 1054/1054 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 992 event pairs, 25 based on Foata normal form. 6/230 useless extension candidates. Maximal degree in co-relation 1039. Up to 109 conditions per place. [2024-11-28 04:00:36,990 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 50 selfloop transitions, 30 changer transitions 13/108 dead transitions. [2024-11-28 04:00:36,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 108 transitions, 1261 flow [2024-11-28 04:00:36,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:00:36,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 04:00:36,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 125 transitions. [2024-11-28 04:00:36,994 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3561253561253561 [2024-11-28 04:00:36,995 INFO L175 Difference]: Start difference. First operand has 160 places, 97 transitions, 1016 flow. Second operand 13 states and 125 transitions. [2024-11-28 04:00:36,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 108 transitions, 1261 flow [2024-11-28 04:00:37,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 108 transitions, 1159 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-28 04:00:37,005 INFO L231 Difference]: Finished difference. Result has 155 places, 91 transitions, 918 flow [2024-11-28 04:00:37,005 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=918, PETRI_PLACES=155, PETRI_TRANSITIONS=91} [2024-11-28 04:00:37,006 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 126 predicate places. [2024-11-28 04:00:37,006 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 91 transitions, 918 flow [2024-11-28 04:00:37,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2024-11-28 04:00:37,006 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:37,006 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:37,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:00:37,006 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:37,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:37,008 INFO L85 PathProgramCache]: Analyzing trace with hash -27967740, now seen corresponding path program 1 times [2024-11-28 04:00:37,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:37,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150613064] [2024-11-28 04:00:37,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:37,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:39,272 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:39,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:39,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150613064] [2024-11-28 04:00:39,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150613064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:39,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:39,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:00:39,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790421024] [2024-11-28 04:00:39,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:39,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:00:39,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:39,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:00:39,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:00:39,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-28 04:00:39,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 91 transitions, 918 flow. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-11-28 04:00:39,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:39,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-28 04:00:39,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:40,729 INFO L124 PetriNetUnfolderBase]: 46/216 cut-off events. [2024-11-28 04:00:40,729 INFO L125 PetriNetUnfolderBase]: For 910/910 co-relation queries the response was YES. [2024-11-28 04:00:40,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1037 conditions, 216 events. 46/216 cut-off events. For 910/910 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 955 event pairs, 21 based on Foata normal form. 8/224 useless extension candidates. Maximal degree in co-relation 953. Up to 91 conditions per place. [2024-11-28 04:00:40,731 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 54 selfloop transitions, 17 changer transitions 20/104 dead transitions. [2024-11-28 04:00:40,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 104 transitions, 1178 flow [2024-11-28 04:00:40,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:00:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:00:40,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2024-11-28 04:00:40,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39094650205761317 [2024-11-28 04:00:40,733 INFO L175 Difference]: Start difference. First operand has 155 places, 91 transitions, 918 flow. Second operand 9 states and 95 transitions. [2024-11-28 04:00:40,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 104 transitions, 1178 flow [2024-11-28 04:00:40,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 104 transitions, 1062 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-11-28 04:00:40,741 INFO L231 Difference]: Finished difference. Result has 144 places, 80 transitions, 733 flow [2024-11-28 04:00:40,741 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=733, PETRI_PLACES=144, PETRI_TRANSITIONS=80} [2024-11-28 04:00:40,742 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 115 predicate places. [2024-11-28 04:00:40,742 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 80 transitions, 733 flow [2024-11-28 04:00:40,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 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) [2024-11-28 04:00:40,742 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:40,742 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:40,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 04:00:40,743 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:40,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:40,743 INFO L85 PathProgramCache]: Analyzing trace with hash 185060550, now seen corresponding path program 3 times [2024-11-28 04:00:40,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:40,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516382448] [2024-11-28 04:00:40,744 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:00:40,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:40,770 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 04:00:40,770 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:00:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:44,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:44,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516382448] [2024-11-28 04:00:44,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516382448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:44,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:44,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:00:44,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35702044] [2024-11-28 04:00:44,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:44,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:44,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:44,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:44,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:00:45,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-28 04:00:45,044 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 80 transitions, 733 flow. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2024-11-28 04:00:45,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:45,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-28 04:00:45,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:46,533 INFO L124 PetriNetUnfolderBase]: 34/166 cut-off events. [2024-11-28 04:00:46,534 INFO L125 PetriNetUnfolderBase]: For 604/606 co-relation queries the response was YES. [2024-11-28 04:00:46,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 776 conditions, 166 events. 34/166 cut-off events. For 604/606 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 578 event pairs, 18 based on Foata normal form. 5/171 useless extension candidates. Maximal degree in co-relation 700. Up to 80 conditions per place. [2024-11-28 04:00:46,535 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 46 selfloop transitions, 18 changer transitions 14/88 dead transitions. [2024-11-28 04:00:46,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 88 transitions, 904 flow [2024-11-28 04:00:46,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:00:46,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 04:00:46,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 121 transitions. [2024-11-28 04:00:46,536 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.34472934472934474 [2024-11-28 04:00:46,536 INFO L175 Difference]: Start difference. First operand has 144 places, 80 transitions, 733 flow. Second operand 13 states and 121 transitions. [2024-11-28 04:00:46,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 88 transitions, 904 flow [2024-11-28 04:00:46,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 88 transitions, 845 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-28 04:00:46,541 INFO L231 Difference]: Finished difference. Result has 140 places, 71 transitions, 624 flow [2024-11-28 04:00:46,542 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=624, PETRI_PLACES=140, PETRI_TRANSITIONS=71} [2024-11-28 04:00:46,542 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 111 predicate places. [2024-11-28 04:00:46,542 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 71 transitions, 624 flow [2024-11-28 04:00:46,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2024-11-28 04:00:46,543 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:46,543 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:46,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 04:00:46,543 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:46,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:46,547 INFO L85 PathProgramCache]: Analyzing trace with hash -373685244, now seen corresponding path program 2 times [2024-11-28 04:00:46,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:46,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997297556] [2024-11-28 04:00:46,547 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:00:46,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:46,577 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 04:00:46,577 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:00:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:49,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:49,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997297556] [2024-11-28 04:00:49,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997297556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:49,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:49,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 04:00:49,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730836985] [2024-11-28 04:00:49,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:49,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:49,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:49,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:49,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:00:49,199 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-28 04:00:49,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 71 transitions, 624 flow. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2024-11-28 04:00:49,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:49,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-28 04:00:49,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:50,655 INFO L124 PetriNetUnfolderBase]: 28/144 cut-off events. [2024-11-28 04:00:50,655 INFO L125 PetriNetUnfolderBase]: For 420/422 co-relation queries the response was YES. [2024-11-28 04:00:50,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 144 events. 28/144 cut-off events. For 420/422 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 440 event pairs, 13 based on Foata normal form. 5/149 useless extension candidates. Maximal degree in co-relation 592. Up to 63 conditions per place. [2024-11-28 04:00:50,657 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 46 selfloop transitions, 15 changer transitions 9/80 dead transitions. [2024-11-28 04:00:50,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 80 transitions, 788 flow [2024-11-28 04:00:50,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:00:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-28 04:00:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 127 transitions. [2024-11-28 04:00:50,658 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.335978835978836 [2024-11-28 04:00:50,658 INFO L175 Difference]: Start difference. First operand has 140 places, 71 transitions, 624 flow. Second operand 14 states and 127 transitions. [2024-11-28 04:00:50,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 80 transitions, 788 flow [2024-11-28 04:00:50,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 80 transitions, 708 flow, removed 3 selfloop flow, removed 16 redundant places. [2024-11-28 04:00:50,663 INFO L231 Difference]: Finished difference. Result has 130 places, 67 transitions, 539 flow [2024-11-28 04:00:50,664 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=539, PETRI_PLACES=130, PETRI_TRANSITIONS=67} [2024-11-28 04:00:50,664 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 101 predicate places. [2024-11-28 04:00:50,664 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 67 transitions, 539 flow [2024-11-28 04:00:50,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 10 states have internal predecessors, (73), 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) [2024-11-28 04:00:50,665 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:50,665 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:50,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 04:00:50,665 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:50,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:50,666 INFO L85 PathProgramCache]: Analyzing trace with hash -242757172, now seen corresponding path program 1 times [2024-11-28 04:00:50,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:50,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186498732] [2024-11-28 04:00:50,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:50,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:52,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:52,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186498732] [2024-11-28 04:00:52,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186498732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:52,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:52,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:00:52,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857296601] [2024-11-28 04:00:52,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:52,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:00:52,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:52,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:00:52,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:00:52,305 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 27 [2024-11-28 04:00:52,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 67 transitions, 539 flow. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2024-11-28 04:00:52,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:52,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 27 [2024-11-28 04:00:52,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:53,066 INFO L124 PetriNetUnfolderBase]: 26/129 cut-off events. [2024-11-28 04:00:53,066 INFO L125 PetriNetUnfolderBase]: For 286/286 co-relation queries the response was YES. [2024-11-28 04:00:53,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 129 events. 26/129 cut-off events. For 286/286 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 329 event pairs, 8 based on Foata normal form. 2/131 useless extension candidates. Maximal degree in co-relation 513. Up to 46 conditions per place. [2024-11-28 04:00:53,068 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 47 selfloop transitions, 24 changer transitions 0/76 dead transitions. [2024-11-28 04:00:53,068 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 76 transitions, 713 flow [2024-11-28 04:00:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:00:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-28 04:00:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 106 transitions. [2024-11-28 04:00:53,069 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.301994301994302 [2024-11-28 04:00:53,069 INFO L175 Difference]: Start difference. First operand has 130 places, 67 transitions, 539 flow. Second operand 13 states and 106 transitions. [2024-11-28 04:00:53,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 76 transitions, 713 flow [2024-11-28 04:00:53,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 76 transitions, 665 flow, removed 4 selfloop flow, removed 14 redundant places. [2024-11-28 04:00:53,073 INFO L231 Difference]: Finished difference. Result has 120 places, 71 transitions, 555 flow [2024-11-28 04:00:53,074 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=555, PETRI_PLACES=120, PETRI_TRANSITIONS=71} [2024-11-28 04:00:53,074 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 91 predicate places. [2024-11-28 04:00:53,074 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 71 transitions, 555 flow [2024-11-28 04:00:53,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 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) [2024-11-28 04:00:53,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:53,074 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:53,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 04:00:53,074 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:53,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:53,075 INFO L85 PathProgramCache]: Analyzing trace with hash 679188904, now seen corresponding path program 4 times [2024-11-28 04:00:53,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:53,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931168531] [2024-11-28 04:00:53,075 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:00:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:53,145 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:00:53,145 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:00:56,147 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:00:56,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:56,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931168531] [2024-11-28 04:00:56,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931168531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:56,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:56,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:00:56,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114102482] [2024-11-28 04:00:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:56,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:00:56,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:56,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:00:56,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:00:56,175 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-11-28 04:00:56,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 71 transitions, 555 flow. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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) [2024-11-28 04:00:56,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:00:56,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-11-28 04:00:56,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:00:57,273 INFO L124 PetriNetUnfolderBase]: 20/120 cut-off events. [2024-11-28 04:00:57,273 INFO L125 PetriNetUnfolderBase]: For 270/270 co-relation queries the response was YES. [2024-11-28 04:00:57,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 120 events. 20/120 cut-off events. For 270/270 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 305 event pairs, 7 based on Foata normal form. 3/123 useless extension candidates. Maximal degree in co-relation 424. Up to 43 conditions per place. [2024-11-28 04:00:57,275 INFO L140 encePairwiseOnDemand]: 18/27 looper letters, 45 selfloop transitions, 10 changer transitions 13/76 dead transitions. [2024-11-28 04:00:57,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 76 transitions, 699 flow [2024-11-28 04:00:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:00:57,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-28 04:00:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 124 transitions. [2024-11-28 04:00:57,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4175084175084175 [2024-11-28 04:00:57,276 INFO L175 Difference]: Start difference. First operand has 120 places, 71 transitions, 555 flow. Second operand 11 states and 124 transitions. [2024-11-28 04:00:57,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 76 transitions, 699 flow [2024-11-28 04:00:57,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 76 transitions, 652 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-28 04:00:57,281 INFO L231 Difference]: Finished difference. Result has 123 places, 62 transitions, 458 flow [2024-11-28 04:00:57,281 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=508, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=458, PETRI_PLACES=123, PETRI_TRANSITIONS=62} [2024-11-28 04:00:57,281 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 94 predicate places. [2024-11-28 04:00:57,281 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 62 transitions, 458 flow [2024-11-28 04:00:57,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 states have internal predecessors, (85), 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) [2024-11-28 04:00:57,282 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:00:57,282 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:57,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:00:57,282 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:00:57,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:57,283 INFO L85 PathProgramCache]: Analyzing trace with hash 533559524, now seen corresponding path program 1 times [2024-11-28 04:00:57,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:57,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632871290] [2024-11-28 04:00:57,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:57,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:57,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:01:01,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:01,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632871290] [2024-11-28 04:01:01,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632871290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:01,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:01,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:01:01,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160900737] [2024-11-28 04:01:01,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:01,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:01:01,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:01,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:01:01,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:01:01,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-28 04:01:01,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 62 transitions, 458 flow. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-11-28 04:01:01,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:01,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-28 04:01:01,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:01,805 INFO L124 PetriNetUnfolderBase]: 18/103 cut-off events. [2024-11-28 04:01:01,806 INFO L125 PetriNetUnfolderBase]: For 231/231 co-relation queries the response was YES. [2024-11-28 04:01:01,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 103 events. 18/103 cut-off events. For 231/231 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 199 event pairs, 2 based on Foata normal form. 2/105 useless extension candidates. Maximal degree in co-relation 409. Up to 31 conditions per place. [2024-11-28 04:01:01,807 INFO L140 encePairwiseOnDemand]: 19/27 looper letters, 38 selfloop transitions, 8 changer transitions 14/65 dead transitions. [2024-11-28 04:01:01,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 65 transitions, 576 flow [2024-11-28 04:01:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:01:01,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 04:01:01,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 90 transitions. [2024-11-28 04:01:01,808 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3333333333333333 [2024-11-28 04:01:01,808 INFO L175 Difference]: Start difference. First operand has 123 places, 62 transitions, 458 flow. Second operand 10 states and 90 transitions. [2024-11-28 04:01:01,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 65 transitions, 576 flow [2024-11-28 04:01:01,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 65 transitions, 524 flow, removed 3 selfloop flow, removed 15 redundant places. [2024-11-28 04:01:01,812 INFO L231 Difference]: Finished difference. Result has 105 places, 51 transitions, 364 flow [2024-11-28 04:01:01,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=364, PETRI_PLACES=105, PETRI_TRANSITIONS=51} [2024-11-28 04:01:01,813 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 76 predicate places. [2024-11-28 04:01:01,813 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 51 transitions, 364 flow [2024-11-28 04:01:01,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 9 states have internal predecessors, (68), 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) [2024-11-28 04:01:01,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:01,813 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:01,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:01:01,813 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:01:01,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:01,814 INFO L85 PathProgramCache]: Analyzing trace with hash 835439095, now seen corresponding path program 1 times [2024-11-28 04:01:01,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:01,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182040903] [2024-11-28 04:01:01,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:01,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:01:05,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:05,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182040903] [2024-11-28 04:01:05,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182040903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:05,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:05,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:01:05,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494924413] [2024-11-28 04:01:05,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:05,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:01:05,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:05,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:01:05,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:01:05,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 27 [2024-11-28 04:01:05,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 51 transitions, 364 flow. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2024-11-28 04:01:05,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:05,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 27 [2024-11-28 04:01:05,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:06,078 INFO L124 PetriNetUnfolderBase]: 9/72 cut-off events. [2024-11-28 04:01:06,078 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-28 04:01:06,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 72 events. 9/72 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 2/74 useless extension candidates. Maximal degree in co-relation 282. Up to 26 conditions per place. [2024-11-28 04:01:06,079 INFO L140 encePairwiseOnDemand]: 20/27 looper letters, 37 selfloop transitions, 3 changer transitions 13/56 dead transitions. [2024-11-28 04:01:06,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 56 transitions, 489 flow [2024-11-28 04:01:06,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:01:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 04:01:06,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 80 transitions. [2024-11-28 04:01:06,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3292181069958848 [2024-11-28 04:01:06,080 INFO L175 Difference]: Start difference. First operand has 105 places, 51 transitions, 364 flow. Second operand 9 states and 80 transitions. [2024-11-28 04:01:06,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 56 transitions, 489 flow [2024-11-28 04:01:06,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 56 transitions, 445 flow, removed 4 selfloop flow, removed 11 redundant places. [2024-11-28 04:01:06,083 INFO L231 Difference]: Finished difference. Result has 87 places, 43 transitions, 298 flow [2024-11-28 04:01:06,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=298, PETRI_PLACES=87, PETRI_TRANSITIONS=43} [2024-11-28 04:01:06,084 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 58 predicate places. [2024-11-28 04:01:06,084 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 43 transitions, 298 flow [2024-11-28 04:01:06,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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) [2024-11-28 04:01:06,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:01:06,084 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:06,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:01:06,085 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-28 04:01:06,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:06,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1064462619, now seen corresponding path program 2 times [2024-11-28 04:01:06,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:06,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718082430] [2024-11-28 04:01:06,085 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:06,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:06,141 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:06,142 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:01:08,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:08,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718082430] [2024-11-28 04:01:08,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718082430] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:08,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212148295] [2024-11-28 04:01:08,407 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:01:08,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:08,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:08,409 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:08,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:01:08,637 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:01:08,637 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:01:08,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-28 04:01:08,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:11,734 INFO L349 Elim1Store]: treesize reduction 257, result has 30.7 percent of original size [2024-11-28 04:01:11,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 12 select indices, 12 select index equivalence classes, 56 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 76 case distinctions, treesize of input 114 treesize of output 165 [2024-11-28 04:01:15,000 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:01:15,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 56 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 492 treesize of output 306 [2024-11-28 04:01:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 11 proven. 145 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:01:19,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:42,002 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-28 04:01:42,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212148295] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:42,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:42,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 24, 6] total 36 [2024-11-28 04:01:42,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453969082] [2024-11-28 04:01:42,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:42,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-28 04:01:42,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:42,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-28 04:01:42,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=1152, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:01:44,390 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-28 04:01:44,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 43 transitions, 298 flow. Second operand has 38 states, 38 states have (on average 5.552631578947368) internal successors, (211), 38 states have internal predecessors, (211), 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) [2024-11-28 04:01:44,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:01:44,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-28 04:01:44,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:01:58,057 INFO L124 PetriNetUnfolderBase]: 5/54 cut-off events. [2024-11-28 04:01:58,057 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2024-11-28 04:01:58,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 54 events. 5/54 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 2/56 useless extension candidates. Maximal degree in co-relation 209. Up to 11 conditions per place. [2024-11-28 04:01:58,058 INFO L140 encePairwiseOnDemand]: 17/27 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2024-11-28 04:01:58,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 43 transitions, 376 flow [2024-11-28 04:01:58,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 04:01:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-28 04:01:58,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 156 transitions. [2024-11-28 04:01:58,060 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.19923371647509577 [2024-11-28 04:01:58,060 INFO L175 Difference]: Start difference. First operand has 87 places, 43 transitions, 298 flow. Second operand 29 states and 156 transitions. [2024-11-28 04:01:58,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 43 transitions, 376 flow [2024-11-28 04:01:58,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 43 transitions, 352 flow, removed 4 selfloop flow, removed 10 redundant places. [2024-11-28 04:01:58,062 INFO L231 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2024-11-28 04:01:58,062 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2024-11-28 04:01:58,062 INFO L279 CegarLoopForPetriNet]: 29 programPoint places, 65 predicate places. [2024-11-28 04:01:58,062 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2024-11-28 04:01:58,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.552631578947368) internal successors, (211), 38 states have internal predecessors, (211), 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) [2024-11-28 04:01:58,065 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 9 remaining) [2024-11-28 04:01:58,066 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 9 remaining) [2024-11-28 04:01:58,066 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 9 remaining) [2024-11-28 04:01:58,066 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 9 remaining) [2024-11-28 04:01:58,066 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-28 04:01:58,066 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 9 remaining) [2024-11-28 04:01:58,066 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 9 remaining) [2024-11-28 04:01:58,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 9 remaining) [2024-11-28 04:01:58,067 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 9 remaining) [2024-11-28 04:01:58,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:01:58,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:01:58,268 INFO L422 BasicCegarLoop]: Path program histogram: [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:58,272 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 04:01:58,272 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:01:58,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:01:58 BasicIcfg [2024-11-28 04:01:58,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:01:58,277 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:01:58,277 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:01:58,277 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:01:58,278 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:29" (3/4) ... [2024-11-28 04:01:58,280 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:01:58,283 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-28 04:01:58,287 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 87 nodes and edges [2024-11-28 04:01:58,287 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 04:01:58,287 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:01:58,363 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:01:58,364 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:01:58,364 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:01:58,365 INFO L158 Benchmark]: Toolchain (without parser) took 151130.20ms. Allocated memory was 117.4MB in the beginning and 687.9MB in the end (delta: 570.4MB). Free memory was 92.9MB in the beginning and 359.5MB in the end (delta: -266.6MB). Peak memory consumption was 299.2MB. Max. memory is 16.1GB. [2024-11-28 04:01:58,365 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:01:58,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.77ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 63.2MB in the end (delta: 29.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 04:01:58,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.82ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 60.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:01:58,366 INFO L158 Benchmark]: Boogie Preprocessor took 78.86ms. Allocated memory is still 117.4MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:01:58,366 INFO L158 Benchmark]: RCFGBuilder took 1212.06ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 58.5MB in the beginning and 300.4MB in the end (delta: -242.0MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. [2024-11-28 04:01:58,366 INFO L158 Benchmark]: TraceAbstraction took 148997.02ms. Allocated memory was 352.3MB in the beginning and 687.9MB in the end (delta: 335.5MB). Free memory was 299.8MB in the beginning and 363.8MB in the end (delta: -64.0MB). Peak memory consumption was 275.5MB. Max. memory is 16.1GB. [2024-11-28 04:01:58,367 INFO L158 Benchmark]: Witness Printer took 86.87ms. Allocated memory is still 687.9MB. Free memory was 363.8MB in the beginning and 359.5MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:01:58,368 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 105.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 688.77ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 63.2MB in the end (delta: 29.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.82ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 60.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.86ms. Allocated memory is still 117.4MB. Free memory was 60.6MB in the beginning and 58.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1212.06ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 58.5MB in the beginning and 300.4MB in the end (delta: -242.0MB). Peak memory consumption was 37.9MB. Max. memory is 16.1GB. * TraceAbstraction took 148997.02ms. Allocated memory was 352.3MB in the beginning and 687.9MB in the end (delta: 335.5MB). Free memory was 299.8MB in the beginning and 363.8MB in the end (delta: -64.0MB). Peak memory consumption was 275.5MB. Max. memory is 16.1GB. * Witness Printer took 86.87ms. Allocated memory is still 687.9MB. Free memory was 363.8MB in the beginning and 359.5MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 943]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 38 locations, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 148.9s, OverallIterations: 26, TraceHistogramMax: 10, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 42.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1434 SdHoareTripleChecker+Valid, 12.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1296 mSDsluCounter, 2946 SdHoareTripleChecker+Invalid, 11.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2811 mSDsCounter, 125 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5264 IncrementalHoareTripleChecker+Invalid, 5389 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 125 mSolverCounterUnsat, 135 mSDtfsCounter, 5264 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 564 GetRequests, 129 SyntacticMatches, 30 SemanticMatches, 405 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2592 ImplicationChecksByTransitivity, 64.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1065occurred in iteration=15, InterpolantAutomatonStates: 320, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 102.6s InterpolantComputationTime, 998 NumberOfCodeBlocks, 758 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1066 ConstructedInterpolants, 39 QuantifiedInterpolants, 82274 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1128 ConjunctsInSsa, 108 ConjunctsInUnsatCore, 35 InterpolantComputations, 22 PerfectInterpolantSequences, 2887/3285 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 04:01:58,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec805f4b-7172-4e25-bdc1-905e4df64023/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE