./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c --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_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/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_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/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_d0ff2716-cc64-48dc-a2d0-2b7c31726295/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 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:55:51,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:55:51,164 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:55:51,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:55:51,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:55:51,194 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:55:51,195 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:55:51,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:55:51,196 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:55:51,196 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:55:51,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:55:51,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:55:51,196 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:55:51,197 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:55:51,197 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:55:51,197 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:55:51,197 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:55:51,197 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:55:51,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:55:51,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:55:51,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:55:51,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:55:51,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:55:51,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:55:51,198 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:55:51,198 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:55:51,199 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:55:51,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:55:51,199 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:55:51,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:55:51,199 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:55:51,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:51,199 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:51,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:51,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:51,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:55:51,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:51,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:51,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:51,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:51,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:55:51,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:55:51,201 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_d0ff2716-cc64-48dc-a2d0-2b7c31726295/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 -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2024-11-28 03:55:51,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:55:51,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:55:51,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:55:51,491 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:55:51,492 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:55:51,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-11-28 03:55:54,440 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/data/af5801cd4/d7b07766b8274acebd3e1f86c0f1104d/FLAG62fd44819 [2024-11-28 03:55:54,698 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:55:54,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2024-11-28 03:55:54,716 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/data/af5801cd4/d7b07766b8274acebd3e1f86c0f1104d/FLAG62fd44819 [2024-11-28 03:55:55,008 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/data/af5801cd4/d7b07766b8274acebd3e1f86c0f1104d [2024-11-28 03:55:55,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:55:55,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:55:55,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:55:55,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:55:55,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:55:55,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f32e0f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55, skipping insertion in model container [2024-11-28 03:55:55,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:55:55,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:55:55,221 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:55:55,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:55:55,262 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:55:55,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55 WrapperNode [2024-11-28 03:55:55,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:55:55,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:55:55,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:55:55,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:55:55,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,280 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,303 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 213 [2024-11-28 03:55:55,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:55:55,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:55:55,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:55:55,304 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:55:55,314 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,314 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,317 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,331 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:55:55,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,337 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:55:55,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:55:55,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:55:55,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:55:55,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (1/1) ... [2024-11-28 03:55:55,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:55,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:55:55,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:55:55,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:55:55,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:55:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 03:55:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 03:55:55,426 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 03:55:55,426 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 03:55:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 03:55:55,427 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 03:55:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:55:55,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:55:55,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:55:55,430 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 03:55:55,527 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:55:55,529 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:55:56,097 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:55:56,098 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:55:56,408 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:55:56,409 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 03:55:56,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:56 BoogieIcfgContainer [2024-11-28 03:55:56,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:55:56,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:55:56,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:55:56,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:55:56,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:55:55" (1/3) ... [2024-11-28 03:55:56,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b49082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:55:56, skipping insertion in model container [2024-11-28 03:55:56,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:55:55" (2/3) ... [2024-11-28 03:55:56,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b49082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:55:56, skipping insertion in model container [2024-11-28 03:55:56,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:56" (3/3) ... [2024-11-28 03:55:56,427 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2024-11-28 03:55:56,445 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:55:56,447 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-exp-term-subst.wvr.c that has 4 procedures, 84 locations, 1 initial locations, 0 loop locations, and 18 error locations. [2024-11-28 03:55:56,447 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:55:56,538 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-28 03:55:56,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 98 transitions, 217 flow [2024-11-28 03:55:56,623 INFO L124 PetriNetUnfolderBase]: 15/95 cut-off events. [2024-11-28 03:55:56,625 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-28 03:55:56,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 95 events. 15/95 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 350 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2024-11-28 03:55:56,631 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 98 transitions, 217 flow [2024-11-28 03:55:56,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 93 transitions, 201 flow [2024-11-28 03:55:56,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:55:56,657 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;@fd1de70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:55:56,657 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2024-11-28 03:55:56,676 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:55:56,676 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-11-28 03:55:56,676 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:55:56,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:55:56,677 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:55:56,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:55:56,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:55:56,685 INFO L85 PathProgramCache]: Analyzing trace with hash 107540757, now seen corresponding path program 1 times [2024-11-28 03:55:56,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:55:56,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998430975] [2024-11-28 03:55:56,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:55:56,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:55:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:55:57,036 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 03:55:57,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:55:57,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998430975] [2024-11-28 03:55:57,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998430975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:55:57,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:55:57,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:55:57,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970147552] [2024-11-28 03:55:57,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:55:57,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:55:57,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:55:57,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:55:57,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:55:57,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-28 03:55:57,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 03:55:57,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:55:57,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-28 03:55:57,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:55:59,767 INFO L124 PetriNetUnfolderBase]: 11126/17819 cut-off events. [2024-11-28 03:55:59,768 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2024-11-28 03:55:59,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32962 conditions, 17819 events. 11126/17819 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 1085. Compared 141566 event pairs, 3987 based on Foata normal form. 444/15003 useless extension candidates. Maximal degree in co-relation 32117. Up to 7687 conditions per place. [2024-11-28 03:55:59,971 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 93 selfloop transitions, 5 changer transitions 0/146 dead transitions. [2024-11-28 03:55:59,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 146 transitions, 515 flow [2024-11-28 03:55:59,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:55:59,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:55:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-11-28 03:55:59,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7780612244897959 [2024-11-28 03:55:59,986 INFO L175 Difference]: Start difference. First operand has 88 places, 93 transitions, 201 flow. Second operand 4 states and 305 transitions. [2024-11-28 03:55:59,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 146 transitions, 515 flow [2024-11-28 03:56:00,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 146 transitions, 500 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:56:00,010 INFO L231 Difference]: Finished difference. Result has 88 places, 95 transitions, 226 flow [2024-11-28 03:56:00,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=226, PETRI_PLACES=88, PETRI_TRANSITIONS=95} [2024-11-28 03:56:00,016 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-11-28 03:56:00,019 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 95 transitions, 226 flow [2024-11-28 03:56:00,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 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 03:56:00,020 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:00,020 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:00,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:56:00,021 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:00,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:00,022 INFO L85 PathProgramCache]: Analyzing trace with hash -961203097, now seen corresponding path program 1 times [2024-11-28 03:56:00,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:00,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116751302] [2024-11-28 03:56:00,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:00,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:00,140 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 03:56:00,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:00,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116751302] [2024-11-28 03:56:00,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116751302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:00,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:00,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:00,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369581428] [2024-11-28 03:56:00,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:00,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:00,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:00,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:00,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:00,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-28 03:56:00,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 95 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 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 03:56:00,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:00,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-28 03:56:00,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:01,985 INFO L124 PetriNetUnfolderBase]: 8257/14973 cut-off events. [2024-11-28 03:56:01,985 INFO L125 PetriNetUnfolderBase]: For 2854/2874 co-relation queries the response was YES. [2024-11-28 03:56:02,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29073 conditions, 14973 events. 8257/14973 cut-off events. For 2854/2874 co-relation queries the response was YES. Maximal size of possible extension queue 933. Compared 132562 event pairs, 2320 based on Foata normal form. 20/12961 useless extension candidates. Maximal degree in co-relation 16338. Up to 6222 conditions per place. [2024-11-28 03:56:02,089 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 63 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-11-28 03:56:02,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 119 transitions, 411 flow [2024-11-28 03:56:02,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:02,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:02,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 282 transitions. [2024-11-28 03:56:02,096 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7193877551020408 [2024-11-28 03:56:02,097 INFO L175 Difference]: Start difference. First operand has 88 places, 95 transitions, 226 flow. Second operand 4 states and 282 transitions. [2024-11-28 03:56:02,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 119 transitions, 411 flow [2024-11-28 03:56:02,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 119 transitions, 411 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:56:02,240 INFO L231 Difference]: Finished difference. Result has 90 places, 94 transitions, 232 flow [2024-11-28 03:56:02,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=90, PETRI_TRANSITIONS=94} [2024-11-28 03:56:02,241 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 2 predicate places. [2024-11-28 03:56:02,241 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 94 transitions, 232 flow [2024-11-28 03:56:02,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 4 states have internal predecessors, (220), 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 03:56:02,242 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:02,242 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:02,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:56:02,242 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:02,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:02,243 INFO L85 PathProgramCache]: Analyzing trace with hash -476424384, now seen corresponding path program 1 times [2024-11-28 03:56:02,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:02,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199721062] [2024-11-28 03:56:02,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:02,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:02,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:02,353 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 03:56:02,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:02,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199721062] [2024-11-28 03:56:02,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199721062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:02,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:02,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:02,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089320331] [2024-11-28 03:56:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:02,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:02,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:02,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:02,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:02,385 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-28 03:56:02,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 94 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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 03:56:02,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:02,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-28 03:56:02,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:04,705 INFO L124 PetriNetUnfolderBase]: 13404/22500 cut-off events. [2024-11-28 03:56:04,705 INFO L125 PetriNetUnfolderBase]: For 7387/8100 co-relation queries the response was YES. [2024-11-28 03:56:04,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45221 conditions, 22500 events. 13404/22500 cut-off events. For 7387/8100 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 194633 event pairs, 4867 based on Foata normal form. 905/19695 useless extension candidates. Maximal degree in co-relation 26814. Up to 9225 conditions per place. [2024-11-28 03:56:04,888 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 97 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2024-11-28 03:56:04,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 149 transitions, 600 flow [2024-11-28 03:56:04,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 303 transitions. [2024-11-28 03:56:04,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7729591836734694 [2024-11-28 03:56:04,891 INFO L175 Difference]: Start difference. First operand has 90 places, 94 transitions, 232 flow. Second operand 4 states and 303 transitions. [2024-11-28 03:56:04,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 149 transitions, 600 flow [2024-11-28 03:56:04,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 149 transitions, 580 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:56:04,988 INFO L231 Difference]: Finished difference. Result has 92 places, 96 transitions, 258 flow [2024-11-28 03:56:04,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=92, PETRI_TRANSITIONS=96} [2024-11-28 03:56:04,991 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-28 03:56:04,991 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 96 transitions, 258 flow [2024-11-28 03:56:04,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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 03:56:04,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:04,991 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:04,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:56:04,992 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:04,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:04,993 INFO L85 PathProgramCache]: Analyzing trace with hash 267444025, now seen corresponding path program 1 times [2024-11-28 03:56:04,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:04,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004585547] [2024-11-28 03:56:04,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:04,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:05,255 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 03:56:05,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:05,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004585547] [2024-11-28 03:56:05,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004585547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:05,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:05,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:05,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386566752] [2024-11-28 03:56:05,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:05,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:05,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:05,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:05,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:05,294 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-28 03:56:05,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 96 transitions, 258 flow. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 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 03:56:05,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:05,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-28 03:56:05,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:06,707 INFO L124 PetriNetUnfolderBase]: 9856/18358 cut-off events. [2024-11-28 03:56:06,707 INFO L125 PetriNetUnfolderBase]: For 7482/8010 co-relation queries the response was YES. [2024-11-28 03:56:06,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37855 conditions, 18358 events. 9856/18358 cut-off events. For 7482/8010 co-relation queries the response was YES. Maximal size of possible extension queue 1117. Compared 170608 event pairs, 2826 based on Foata normal form. 542/16641 useless extension candidates. Maximal degree in co-relation 22936. Up to 7650 conditions per place. [2024-11-28 03:56:06,832 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 68 selfloop transitions, 4 changer transitions 0/122 dead transitions. [2024-11-28 03:56:06,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 122 transitions, 473 flow [2024-11-28 03:56:06,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:06,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2024-11-28 03:56:06,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7091836734693877 [2024-11-28 03:56:06,834 INFO L175 Difference]: Start difference. First operand has 92 places, 96 transitions, 258 flow. Second operand 4 states and 278 transitions. [2024-11-28 03:56:06,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 122 transitions, 473 flow [2024-11-28 03:56:06,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 122 transitions, 473 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:56:06,922 INFO L231 Difference]: Finished difference. Result has 94 places, 95 transitions, 262 flow [2024-11-28 03:56:06,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=262, PETRI_PLACES=94, PETRI_TRANSITIONS=95} [2024-11-28 03:56:06,925 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-11-28 03:56:06,925 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 95 transitions, 262 flow [2024-11-28 03:56:06,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 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 03:56:06,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:06,926 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:06,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:56:06,926 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:06,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:06,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1884253256, now seen corresponding path program 1 times [2024-11-28 03:56:06,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:06,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603283890] [2024-11-28 03:56:06,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:06,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:06,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:07,016 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 03:56:07,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:07,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603283890] [2024-11-28 03:56:07,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603283890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:07,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:07,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:07,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133037353] [2024-11-28 03:56:07,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:07,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:07,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:07,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:07,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:07,043 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-28 03:56:07,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 95 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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 03:56:07,044 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:07,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-28 03:56:07,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:08,270 INFO L124 PetriNetUnfolderBase]: 9875/18608 cut-off events. [2024-11-28 03:56:08,270 INFO L125 PetriNetUnfolderBase]: For 8821/9099 co-relation queries the response was YES. [2024-11-28 03:56:08,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38917 conditions, 18608 events. 9875/18608 cut-off events. For 8821/9099 co-relation queries the response was YES. Maximal size of possible extension queue 1143. Compared 175301 event pairs, 2742 based on Foata normal form. 278/16630 useless extension candidates. Maximal degree in co-relation 23741. Up to 7590 conditions per place. [2024-11-28 03:56:08,369 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 66 selfloop transitions, 4 changer transitions 0/120 dead transitions. [2024-11-28 03:56:08,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 120 transitions, 479 flow [2024-11-28 03:56:08,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:08,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:08,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2024-11-28 03:56:08,371 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7168367346938775 [2024-11-28 03:56:08,371 INFO L175 Difference]: Start difference. First operand has 94 places, 95 transitions, 262 flow. Second operand 4 states and 281 transitions. [2024-11-28 03:56:08,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 120 transitions, 479 flow [2024-11-28 03:56:08,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 120 transitions, 465 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:56:08,484 INFO L231 Difference]: Finished difference. Result has 93 places, 94 transitions, 260 flow [2024-11-28 03:56:08,485 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=260, PETRI_PLACES=93, PETRI_TRANSITIONS=94} [2024-11-28 03:56:08,485 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-28 03:56:08,485 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 94 transitions, 260 flow [2024-11-28 03:56:08,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 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 03:56:08,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:08,486 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:08,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:56:08,486 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:08,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:08,486 INFO L85 PathProgramCache]: Analyzing trace with hash -299170103, now seen corresponding path program 1 times [2024-11-28 03:56:08,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:08,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085182909] [2024-11-28 03:56:08,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,605 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 03:56:08,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:08,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085182909] [2024-11-28 03:56:08,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085182909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:08,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:08,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:08,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507873093] [2024-11-28 03:56:08,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:08,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:08,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:08,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:08,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:08,649 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-28 03:56:08,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 94 transitions, 260 flow. Second operand has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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 03:56:08,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:08,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-28 03:56:08,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:10,364 INFO L124 PetriNetUnfolderBase]: 13504/21736 cut-off events. [2024-11-28 03:56:10,364 INFO L125 PetriNetUnfolderBase]: For 9450/10175 co-relation queries the response was YES. [2024-11-28 03:56:10,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48199 conditions, 21736 events. 13504/21736 cut-off events. For 9450/10175 co-relation queries the response was YES. Maximal size of possible extension queue 1287. Compared 178892 event pairs, 2750 based on Foata normal form. 365/20178 useless extension candidates. Maximal degree in co-relation 28750. Up to 9338 conditions per place. [2024-11-28 03:56:10,498 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 95 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2024-11-28 03:56:10,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 147 transitions, 622 flow [2024-11-28 03:56:10,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:56:10,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 355 transitions. [2024-11-28 03:56:10,500 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7244897959183674 [2024-11-28 03:56:10,500 INFO L175 Difference]: Start difference. First operand has 93 places, 94 transitions, 260 flow. Second operand 5 states and 355 transitions. [2024-11-28 03:56:10,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 147 transitions, 622 flow [2024-11-28 03:56:10,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 147 transitions, 602 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:56:10,578 INFO L231 Difference]: Finished difference. Result has 93 places, 93 transitions, 262 flow [2024-11-28 03:56:10,578 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=93, PETRI_TRANSITIONS=93} [2024-11-28 03:56:10,579 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-28 03:56:10,579 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 93 transitions, 262 flow [2024-11-28 03:56:10,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.4) internal successors, (267), 5 states have internal predecessors, (267), 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 03:56:10,580 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:10,580 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:10,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:56:10,580 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:10,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:10,580 INFO L85 PathProgramCache]: Analyzing trace with hash -299169078, now seen corresponding path program 1 times [2024-11-28 03:56:10,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:10,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237157704] [2024-11-28 03:56:10,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:10,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:10,648 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 03:56:10,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:10,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237157704] [2024-11-28 03:56:10,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237157704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:10,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:10,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:10,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68952194] [2024-11-28 03:56:10,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:10,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:10,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:10,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:10,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:10,674 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-28 03:56:10,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 03:56:10,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:10,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-28 03:56:10,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:11,869 INFO L124 PetriNetUnfolderBase]: 10971/19600 cut-off events. [2024-11-28 03:56:11,869 INFO L125 PetriNetUnfolderBase]: For 10043/10625 co-relation queries the response was YES. [2024-11-28 03:56:11,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41971 conditions, 19600 events. 10971/19600 cut-off events. For 10043/10625 co-relation queries the response was YES. Maximal size of possible extension queue 1162. Compared 177042 event pairs, 5070 based on Foata normal form. 561/17937 useless extension candidates. Maximal degree in co-relation 25125. Up to 9302 conditions per place. [2024-11-28 03:56:11,969 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 97 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2024-11-28 03:56:11,969 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 147 transitions, 610 flow [2024-11-28 03:56:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:11,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:11,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 300 transitions. [2024-11-28 03:56:11,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7653061224489796 [2024-11-28 03:56:11,971 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 262 flow. Second operand 4 states and 300 transitions. [2024-11-28 03:56:11,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 147 transitions, 610 flow [2024-11-28 03:56:12,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 147 transitions, 598 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:56:12,033 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 252 flow [2024-11-28 03:56:12,033 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2024-11-28 03:56:12,034 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-28 03:56:12,034 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 252 flow [2024-11-28 03:56:12,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 03:56:12,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:12,034 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:12,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:56:12,034 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:12,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:12,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1717660196, now seen corresponding path program 1 times [2024-11-28 03:56:12,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:12,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350111712] [2024-11-28 03:56:12,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:12,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:12,106 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 03:56:12,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:12,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350111712] [2024-11-28 03:56:12,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350111712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:12,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:12,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:12,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457172538] [2024-11-28 03:56:12,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:12,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:12,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:12,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:12,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:12,140 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-28 03:56:12,140 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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 03:56:12,140 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:12,140 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-28 03:56:12,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:13,291 INFO L124 PetriNetUnfolderBase]: 9894/18268 cut-off events. [2024-11-28 03:56:13,291 INFO L125 PetriNetUnfolderBase]: For 8863/9141 co-relation queries the response was YES. [2024-11-28 03:56:13,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38362 conditions, 18268 events. 9894/18268 cut-off events. For 8863/9141 co-relation queries the response was YES. Maximal size of possible extension queue 1113. Compared 168152 event pairs, 2742 based on Foata normal form. 552/16669 useless extension candidates. Maximal degree in co-relation 23634. Up to 7864 conditions per place. [2024-11-28 03:56:13,372 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 67 selfloop transitions, 4 changer transitions 0/117 dead transitions. [2024-11-28 03:56:13,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 117 transitions, 468 flow [2024-11-28 03:56:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:13,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:13,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2024-11-28 03:56:13,374 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7066326530612245 [2024-11-28 03:56:13,374 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 252 flow. Second operand 4 states and 277 transitions. [2024-11-28 03:56:13,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 117 transitions, 468 flow [2024-11-28 03:56:13,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 117 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:56:13,461 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 250 flow [2024-11-28 03:56:13,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2024-11-28 03:56:13,461 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 4 predicate places. [2024-11-28 03:56:13,462 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 250 flow [2024-11-28 03:56:13,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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 03:56:13,462 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:13,462 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:13,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:56:13,462 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:13,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:13,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1182408726, now seen corresponding path program 1 times [2024-11-28 03:56:13,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:13,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632452746] [2024-11-28 03:56:13,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:13,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:13,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:13,538 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 03:56:13,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:13,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632452746] [2024-11-28 03:56:13,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632452746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:13,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:13,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:13,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331854891] [2024-11-28 03:56:13,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:13,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:13,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:13,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:13,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:13,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-28 03:56:13,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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 03:56:13,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:13,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-28 03:56:13,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:15,317 INFO L124 PetriNetUnfolderBase]: 15804/26988 cut-off events. [2024-11-28 03:56:15,317 INFO L125 PetriNetUnfolderBase]: For 14945/15787 co-relation queries the response was YES. [2024-11-28 03:56:15,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57392 conditions, 26988 events. 15804/26988 cut-off events. For 14945/15787 co-relation queries the response was YES. Maximal size of possible extension queue 1497. Compared 243981 event pairs, 6214 based on Foata normal form. 1444/24795 useless extension candidates. Maximal degree in co-relation 35440. Up to 11473 conditions per place. [2024-11-28 03:56:15,461 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 101 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-28 03:56:15,461 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 148 transitions, 664 flow [2024-11-28 03:56:15,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:15,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 301 transitions. [2024-11-28 03:56:15,463 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7678571428571429 [2024-11-28 03:56:15,463 INFO L175 Difference]: Start difference. First operand has 92 places, 91 transitions, 250 flow. Second operand 4 states and 301 transitions. [2024-11-28 03:56:15,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 148 transitions, 664 flow [2024-11-28 03:56:15,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 148 transitions, 644 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:56:15,513 INFO L231 Difference]: Finished difference. Result has 94 places, 93 transitions, 276 flow [2024-11-28 03:56:15,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=94, PETRI_TRANSITIONS=93} [2024-11-28 03:56:15,514 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 6 predicate places. [2024-11-28 03:56:15,514 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 93 transitions, 276 flow [2024-11-28 03:56:15,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 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 03:56:15,515 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:15,515 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:15,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:56:15,515 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:15,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:15,516 INFO L85 PathProgramCache]: Analyzing trace with hash -684337860, now seen corresponding path program 1 times [2024-11-28 03:56:15,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:15,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186768452] [2024-11-28 03:56:15,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:15,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:15,627 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 03:56:15,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:15,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186768452] [2024-11-28 03:56:15,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186768452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:15,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:15,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:15,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848893612] [2024-11-28 03:56:15,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:15,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:56:15,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:15,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:56:15,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:15,698 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-28 03:56:15,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 93 transitions, 276 flow. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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 03:56:15,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:15,700 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-28 03:56:15,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:17,682 INFO L124 PetriNetUnfolderBase]: 15759/25783 cut-off events. [2024-11-28 03:56:17,682 INFO L125 PetriNetUnfolderBase]: For 14612/15690 co-relation queries the response was YES. [2024-11-28 03:56:17,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59311 conditions, 25783 events. 15759/25783 cut-off events. For 14612/15690 co-relation queries the response was YES. Maximal size of possible extension queue 1493. Compared 222062 event pairs, 3433 based on Foata normal form. 1404/25374 useless extension candidates. Maximal degree in co-relation 37778. Up to 6544 conditions per place. [2024-11-28 03:56:17,810 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 127 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2024-11-28 03:56:17,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 180 transitions, 839 flow [2024-11-28 03:56:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:56:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:56:17,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 413 transitions. [2024-11-28 03:56:17,812 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2024-11-28 03:56:17,812 INFO L175 Difference]: Start difference. First operand has 94 places, 93 transitions, 276 flow. Second operand 6 states and 413 transitions. [2024-11-28 03:56:17,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 180 transitions, 839 flow [2024-11-28 03:56:17,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 180 transitions, 839 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:56:17,895 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 301 flow [2024-11-28 03:56:17,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2024-11-28 03:56:17,895 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-11-28 03:56:17,895 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 301 flow [2024-11-28 03:56:17,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 6 states have internal predecessors, (301), 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 03:56:17,896 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:17,896 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:17,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:56:17,896 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:17,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:17,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1707858266, now seen corresponding path program 1 times [2024-11-28 03:56:17,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:17,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027290260] [2024-11-28 03:56:17,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:17,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:17,983 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 03:56:17,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:17,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027290260] [2024-11-28 03:56:17,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027290260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:17,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:17,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:17,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635161972] [2024-11-28 03:56:17,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:17,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:17,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:17,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:17,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:18,024 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-28 03:56:18,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 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 03:56:18,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:18,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-28 03:56:18,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:19,757 INFO L124 PetriNetUnfolderBase]: 16215/26324 cut-off events. [2024-11-28 03:56:19,758 INFO L125 PetriNetUnfolderBase]: For 24726/26909 co-relation queries the response was YES. [2024-11-28 03:56:19,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64726 conditions, 26324 events. 16215/26324 cut-off events. For 24726/26909 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 223839 event pairs, 3315 based on Foata normal form. 1544/26285 useless extension candidates. Maximal degree in co-relation 41496. Up to 11286 conditions per place. [2024-11-28 03:56:19,922 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 102 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-28 03:56:19,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 150 transitions, 743 flow [2024-11-28 03:56:19,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:19,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:56:19,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 353 transitions. [2024-11-28 03:56:19,924 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7204081632653061 [2024-11-28 03:56:19,925 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 301 flow. Second operand 5 states and 353 transitions. [2024-11-28 03:56:19,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 150 transitions, 743 flow [2024-11-28 03:56:20,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 150 transitions, 712 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:56:20,115 INFO L231 Difference]: Finished difference. Result has 98 places, 92 transitions, 298 flow [2024-11-28 03:56:20,115 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=298, PETRI_PLACES=98, PETRI_TRANSITIONS=92} [2024-11-28 03:56:20,115 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-28 03:56:20,116 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 92 transitions, 298 flow [2024-11-28 03:56:20,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 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 03:56:20,116 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:20,116 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:20,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:56:20,116 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:20,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:20,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1707859291, now seen corresponding path program 1 times [2024-11-28 03:56:20,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:20,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943189918] [2024-11-28 03:56:20,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:20,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:20,174 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 03:56:20,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:20,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943189918] [2024-11-28 03:56:20,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943189918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:20,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:20,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:20,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902813160] [2024-11-28 03:56:20,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:20,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:20,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:20,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:20,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:20,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-28 03:56:20,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 92 transitions, 298 flow. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 03:56:20,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:20,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-28 03:56:20,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:21,882 INFO L124 PetriNetUnfolderBase]: 13207/23946 cut-off events. [2024-11-28 03:56:21,882 INFO L125 PetriNetUnfolderBase]: For 20358/21945 co-relation queries the response was YES. [2024-11-28 03:56:21,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56054 conditions, 23946 events. 13207/23946 cut-off events. For 20358/21945 co-relation queries the response was YES. Maximal size of possible extension queue 1359. Compared 225087 event pairs, 6229 based on Foata normal form. 1515/23484 useless extension candidates. Maximal degree in co-relation 35715. Up to 11157 conditions per place. [2024-11-28 03:56:22,025 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 104 selfloop transitions, 4 changer transitions 0/150 dead transitions. [2024-11-28 03:56:22,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 720 flow [2024-11-28 03:56:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:22,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-11-28 03:56:22,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-28 03:56:22,027 INFO L175 Difference]: Start difference. First operand has 98 places, 92 transitions, 298 flow. Second operand 4 states and 298 transitions. [2024-11-28 03:56:22,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 720 flow [2024-11-28 03:56:22,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 150 transitions, 708 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:56:22,162 INFO L231 Difference]: Finished difference. Result has 97 places, 91 transitions, 288 flow [2024-11-28 03:56:22,163 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=91} [2024-11-28 03:56:22,163 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-28 03:56:22,163 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 91 transitions, 288 flow [2024-11-28 03:56:22,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 03:56:22,163 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:22,164 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:22,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:56:22,164 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:22,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:22,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2000035946, now seen corresponding path program 1 times [2024-11-28 03:56:22,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:22,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224968042] [2024-11-28 03:56:22,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:22,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:22,213 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 03:56:22,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:22,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224968042] [2024-11-28 03:56:22,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224968042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:22,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:22,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:22,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143619502] [2024-11-28 03:56:22,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:22,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:22,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:22,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:22,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:22,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 98 [2024-11-28 03:56:22,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 91 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 03:56:22,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:22,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 98 [2024-11-28 03:56:22,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:23,503 INFO L124 PetriNetUnfolderBase]: 11899/22509 cut-off events. [2024-11-28 03:56:23,503 INFO L125 PetriNetUnfolderBase]: For 16711/18012 co-relation queries the response was YES. [2024-11-28 03:56:23,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50828 conditions, 22509 events. 11899/22509 cut-off events. For 16711/18012 co-relation queries the response was YES. Maximal size of possible extension queue 1283. Compared 218586 event pairs, 3711 based on Foata normal form. 1120/21658 useless extension candidates. Maximal degree in co-relation 31540. Up to 8309 conditions per place. [2024-11-28 03:56:23,637 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 71 selfloop transitions, 4 changer transitions 0/118 dead transitions. [2024-11-28 03:56:23,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 118 transitions, 543 flow [2024-11-28 03:56:23,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:23,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:23,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2024-11-28 03:56:23,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-28 03:56:23,639 INFO L175 Difference]: Start difference. First operand has 97 places, 91 transitions, 288 flow. Second operand 4 states and 280 transitions. [2024-11-28 03:56:23,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 118 transitions, 543 flow [2024-11-28 03:56:23,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 118 transitions, 532 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:56:23,782 INFO L231 Difference]: Finished difference. Result has 97 places, 90 transitions, 288 flow [2024-11-28 03:56:23,782 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=97, PETRI_TRANSITIONS=90} [2024-11-28 03:56:23,783 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-28 03:56:23,783 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 90 transitions, 288 flow [2024-11-28 03:56:23,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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 03:56:23,783 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:23,783 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:23,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:56:23,784 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:23,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:23,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1207680655, now seen corresponding path program 1 times [2024-11-28 03:56:23,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:23,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347258078] [2024-11-28 03:56:23,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:23,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:23,841 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 03:56:23,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:23,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347258078] [2024-11-28 03:56:23,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347258078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:23,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:23,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:23,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675282707] [2024-11-28 03:56:23,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:23,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:23,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:23,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:23,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:23,868 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-28 03:56:23,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 90 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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 03:56:23,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:23,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-28 03:56:23,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:25,488 INFO L124 PetriNetUnfolderBase]: 15736/26116 cut-off events. [2024-11-28 03:56:25,488 INFO L125 PetriNetUnfolderBase]: For 22760/23942 co-relation queries the response was YES. [2024-11-28 03:56:25,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61857 conditions, 26116 events. 15736/26116 cut-off events. For 22760/23942 co-relation queries the response was YES. Maximal size of possible extension queue 1440. Compared 228359 event pairs, 6223 based on Foata normal form. 1307/25597 useless extension candidates. Maximal degree in co-relation 38821. Up to 11469 conditions per place. [2024-11-28 03:56:25,646 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 102 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-28 03:56:25,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 148 transitions, 707 flow [2024-11-28 03:56:25,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:25,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 298 transitions. [2024-11-28 03:56:25,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7602040816326531 [2024-11-28 03:56:25,647 INFO L175 Difference]: Start difference. First operand has 97 places, 90 transitions, 288 flow. Second operand 4 states and 298 transitions. [2024-11-28 03:56:25,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 148 transitions, 707 flow [2024-11-28 03:56:25,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 148 transitions, 684 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:56:25,712 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 290 flow [2024-11-28 03:56:25,712 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-11-28 03:56:25,712 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 8 predicate places. [2024-11-28 03:56:25,713 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 290 flow [2024-11-28 03:56:25,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 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 03:56:25,713 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:25,713 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:25,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:56:25,713 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:25,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:25,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1403999463, now seen corresponding path program 1 times [2024-11-28 03:56:25,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:25,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727016585] [2024-11-28 03:56:25,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:25,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:25,808 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 03:56:25,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:25,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727016585] [2024-11-28 03:56:25,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727016585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:25,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:25,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:25,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556171916] [2024-11-28 03:56:25,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:25,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:56:25,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:25,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:56:25,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:25,860 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-28 03:56:25,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 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 03:56:25,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:25,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-28 03:56:25,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:27,766 INFO L124 PetriNetUnfolderBase]: 17101/27512 cut-off events. [2024-11-28 03:56:27,766 INFO L125 PetriNetUnfolderBase]: For 26780/28706 co-relation queries the response was YES. [2024-11-28 03:56:27,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68550 conditions, 27512 events. 17101/27512 cut-off events. For 26780/28706 co-relation queries the response was YES. Maximal size of possible extension queue 1553. Compared 232411 event pairs, 3587 based on Foata normal form. 2288/28089 useless extension candidates. Maximal degree in co-relation 54759. Up to 6910 conditions per place. [2024-11-28 03:56:27,933 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 132 selfloop transitions, 9 changer transitions 0/180 dead transitions. [2024-11-28 03:56:27,934 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 180 transitions, 926 flow [2024-11-28 03:56:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:56:27,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:56:27,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2024-11-28 03:56:27,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6972789115646258 [2024-11-28 03:56:27,935 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 290 flow. Second operand 6 states and 410 transitions. [2024-11-28 03:56:27,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 180 transitions, 926 flow [2024-11-28 03:56:28,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 180 transitions, 910 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:56:28,063 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 311 flow [2024-11-28 03:56:28,063 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=311, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-11-28 03:56:28,063 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-28 03:56:28,063 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 311 flow [2024-11-28 03:56:28,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.5) internal successors, (303), 6 states have internal predecessors, (303), 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 03:56:28,063 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:28,063 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:28,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:56:28,064 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:28,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:28,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1871541198, now seen corresponding path program 1 times [2024-11-28 03:56:28,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:28,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682776213] [2024-11-28 03:56:28,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:28,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:28,122 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 03:56:28,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:28,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682776213] [2024-11-28 03:56:28,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682776213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:28,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:28,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:56:28,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791169105] [2024-11-28 03:56:28,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:28,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:28,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:28,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:28,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:28,150 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 98 [2024-11-28 03:56:28,151 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 311 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:28,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:28,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 98 [2024-11-28 03:56:28,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:29,717 INFO L124 PetriNetUnfolderBase]: 12814/23677 cut-off events. [2024-11-28 03:56:29,718 INFO L125 PetriNetUnfolderBase]: For 29371/31238 co-relation queries the response was YES. [2024-11-28 03:56:29,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57747 conditions, 23677 events. 12814/23677 cut-off events. For 29371/31238 co-relation queries the response was YES. Maximal size of possible extension queue 1300. Compared 225792 event pairs, 4044 based on Foata normal form. 2003/23697 useless extension candidates. Maximal degree in co-relation 46739. Up to 9274 conditions per place. [2024-11-28 03:56:29,829 INFO L140 encePairwiseOnDemand]: 94/98 looper letters, 76 selfloop transitions, 4 changer transitions 0/119 dead transitions. [2024-11-28 03:56:29,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 119 transitions, 597 flow [2024-11-28 03:56:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:29,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:29,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2024-11-28 03:56:29,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7040816326530612 [2024-11-28 03:56:29,831 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 311 flow. Second operand 4 states and 276 transitions. [2024-11-28 03:56:29,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 119 transitions, 597 flow [2024-11-28 03:56:29,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 119 transitions, 575 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:56:29,928 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 302 flow [2024-11-28 03:56:29,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2024-11-28 03:56:29,929 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-28 03:56:29,929 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 302 flow [2024-11-28 03:56:29,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:56:29,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:29,929 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:29,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:56:29,929 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:29,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:29,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1521628256, now seen corresponding path program 1 times [2024-11-28 03:56:29,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:29,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824884914] [2024-11-28 03:56:29,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:29,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:29,991 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 03:56:29,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:29,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824884914] [2024-11-28 03:56:29,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824884914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:29,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:29,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:56:29,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106368962] [2024-11-28 03:56:29,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:29,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:29,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:29,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:29,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:30,022 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-28 03:56:30,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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 03:56:30,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:30,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-28 03:56:30,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:31,822 INFO L124 PetriNetUnfolderBase]: 17089/27301 cut-off events. [2024-11-28 03:56:31,822 INFO L125 PetriNetUnfolderBase]: For 28108/29622 co-relation queries the response was YES. [2024-11-28 03:56:31,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70598 conditions, 27301 events. 17089/27301 cut-off events. For 28108/29622 co-relation queries the response was YES. Maximal size of possible extension queue 1506. Compared 227327 event pairs, 6748 based on Foata normal form. 1864/27553 useless extension candidates. Maximal degree in co-relation 56678. Up to 12383 conditions per place. [2024-11-28 03:56:31,999 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 166 selfloop transitions, 8 changer transitions 0/210 dead transitions. [2024-11-28 03:56:32,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 210 transitions, 1132 flow [2024-11-28 03:56:32,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:56:32,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:56:32,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 439 transitions. [2024-11-28 03:56:32,002 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7465986394557823 [2024-11-28 03:56:32,002 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 302 flow. Second operand 6 states and 439 transitions. [2024-11-28 03:56:32,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 210 transitions, 1132 flow [2024-11-28 03:56:32,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 210 transitions, 1095 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 03:56:32,406 INFO L231 Difference]: Finished difference. Result has 100 places, 90 transitions, 318 flow [2024-11-28 03:56:32,407 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=100, PETRI_TRANSITIONS=90} [2024-11-28 03:56:32,407 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-28 03:56:32,407 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 90 transitions, 318 flow [2024-11-28 03:56:32,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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 03:56:32,408 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:32,408 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:32,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:56:32,408 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:32,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:32,409 INFO L85 PathProgramCache]: Analyzing trace with hash -2111764211, now seen corresponding path program 1 times [2024-11-28 03:56:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:32,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562925544] [2024-11-28 03:56:32,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:32,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:32,462 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 03:56:32,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:32,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562925544] [2024-11-28 03:56:32,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562925544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:32,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:32,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:32,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589732667] [2024-11-28 03:56:32,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:32,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:56:32,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:32,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:56:32,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:56:32,492 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 98 [2024-11-28 03:56:32,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 90 transitions, 318 flow. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 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 03:56:32,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:32,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 98 [2024-11-28 03:56:32,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:34,613 INFO L124 PetriNetUnfolderBase]: 14303/24867 cut-off events. [2024-11-28 03:56:34,613 INFO L125 PetriNetUnfolderBase]: For 36264/38189 co-relation queries the response was YES. [2024-11-28 03:56:34,696 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62638 conditions, 24867 events. 14303/24867 cut-off events. For 36264/38189 co-relation queries the response was YES. Maximal size of possible extension queue 1353. Compared 225764 event pairs, 7060 based on Foata normal form. 2250/25118 useless extension candidates. Maximal degree in co-relation 50454. Up to 12508 conditions per place. [2024-11-28 03:56:34,784 INFO L140 encePairwiseOnDemand]: 93/98 looper letters, 111 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2024-11-28 03:56:34,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 152 transitions, 820 flow [2024-11-28 03:56:34,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:56:34,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:56:34,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-11-28 03:56:34,787 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7551020408163265 [2024-11-28 03:56:34,787 INFO L175 Difference]: Start difference. First operand has 100 places, 90 transitions, 318 flow. Second operand 4 states and 296 transitions. [2024-11-28 03:56:34,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 152 transitions, 820 flow [2024-11-28 03:56:34,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 152 transitions, 777 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-28 03:56:34,908 INFO L231 Difference]: Finished difference. Result has 98 places, 89 transitions, 301 flow [2024-11-28 03:56:34,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=98, PETRI_TRANSITIONS=89} [2024-11-28 03:56:34,909 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-28 03:56:34,909 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 89 transitions, 301 flow [2024-11-28 03:56:34,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 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 03:56:34,910 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:34,910 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:34,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:56:34,910 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:34,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:34,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2111765236, now seen corresponding path program 1 times [2024-11-28 03:56:34,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:34,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070811413] [2024-11-28 03:56:34,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:34,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:34,994 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 03:56:34,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:34,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070811413] [2024-11-28 03:56:34,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070811413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:34,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:34,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:56:34,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872576438] [2024-11-28 03:56:34,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:34,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:34,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:34,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:34,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:35,032 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 98 [2024-11-28 03:56:35,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 89 transitions, 301 flow. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 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 03:56:35,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:35,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 98 [2024-11-28 03:56:35,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:36,859 INFO L124 PetriNetUnfolderBase]: 17024/26790 cut-off events. [2024-11-28 03:56:36,859 INFO L125 PetriNetUnfolderBase]: For 31927/34358 co-relation queries the response was YES. [2024-11-28 03:56:36,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68650 conditions, 26790 events. 17024/26790 cut-off events. For 31927/34358 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 218750 event pairs, 4044 based on Foata normal form. 2431/27876 useless extension candidates. Maximal degree in co-relation 55134. Up to 11413 conditions per place. [2024-11-28 03:56:37,023 INFO L140 encePairwiseOnDemand]: 92/98 looper letters, 109 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-28 03:56:37,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 150 transitions, 781 flow [2024-11-28 03:56:37,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:56:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:56:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 351 transitions. [2024-11-28 03:56:37,025 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7163265306122449 [2024-11-28 03:56:37,026 INFO L175 Difference]: Start difference. First operand has 98 places, 89 transitions, 301 flow. Second operand 5 states and 351 transitions. [2024-11-28 03:56:37,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 150 transitions, 781 flow [2024-11-28 03:56:37,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 150 transitions, 775 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:56:37,147 INFO L231 Difference]: Finished difference. Result has 99 places, 88 transitions, 305 flow [2024-11-28 03:56:37,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=305, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2024-11-28 03:56:37,148 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 11 predicate places. [2024-11-28 03:56:37,148 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 305 flow [2024-11-28 03:56:37,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 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 03:56:37,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:37,148 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:37,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:56:37,148 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:37,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:37,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1040212079, now seen corresponding path program 1 times [2024-11-28 03:56:37,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:37,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719849198] [2024-11-28 03:56:37,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:37,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:37,227 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 03:56:37,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:37,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719849198] [2024-11-28 03:56:37,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719849198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:37,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:37,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:56:37,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980264599] [2024-11-28 03:56:37,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:37,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:56:37,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:37,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:56:37,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:56:37,281 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-28 03:56:37,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 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 03:56:37,282 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:37,282 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-28 03:56:37,282 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:39,071 INFO L124 PetriNetUnfolderBase]: 17024/26465 cut-off events. [2024-11-28 03:56:39,071 INFO L125 PetriNetUnfolderBase]: For 36152/38583 co-relation queries the response was YES. [2024-11-28 03:56:39,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68976 conditions, 26465 events. 17024/26465 cut-off events. For 36152/38583 co-relation queries the response was YES. Maximal size of possible extension queue 1420. Compared 212582 event pairs, 4044 based on Foata normal form. 3081/28201 useless extension candidates. Maximal degree in co-relation 55412. Up to 7579 conditions per place. [2024-11-28 03:56:39,201 INFO L140 encePairwiseOnDemand]: 90/98 looper letters, 137 selfloop transitions, 9 changer transitions 0/181 dead transitions. [2024-11-28 03:56:39,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 181 transitions, 975 flow [2024-11-28 03:56:39,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:56:39,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:56:39,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 407 transitions. [2024-11-28 03:56:39,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6921768707482994 [2024-11-28 03:56:39,203 INFO L175 Difference]: Start difference. First operand has 99 places, 88 transitions, 305 flow. Second operand 6 states and 407 transitions. [2024-11-28 03:56:39,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 181 transitions, 975 flow [2024-11-28 03:56:39,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 181 transitions, 966 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:56:39,298 INFO L231 Difference]: Finished difference. Result has 101 places, 88 transitions, 321 flow [2024-11-28 03:56:39,298 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=321, PETRI_PLACES=101, PETRI_TRANSITIONS=88} [2024-11-28 03:56:39,298 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2024-11-28 03:56:39,299 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 88 transitions, 321 flow [2024-11-28 03:56:39,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.833333333333336) internal successors, (305), 6 states have internal predecessors, (305), 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 03:56:39,299 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:56:39,299 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:39,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:56:39,299 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2024-11-28 03:56:39,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:39,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1234485486, now seen corresponding path program 1 times [2024-11-28 03:56:39,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:39,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070672043] [2024-11-28 03:56:39,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:39,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:39,358 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 03:56:39,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:39,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070672043] [2024-11-28 03:56:39,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070672043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:39,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:56:39,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:56:39,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205771880] [2024-11-28 03:56:39,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:39,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:56:39,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:39,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:56:39,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:56:39,386 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 98 [2024-11-28 03:56:39,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 88 transitions, 321 flow. Second operand has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 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 03:56:39,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:56:39,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 98 [2024-11-28 03:56:39,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:56:41,118 INFO L124 PetriNetUnfolderBase]: 17024/25642 cut-off events. [2024-11-28 03:56:41,118 INFO L125 PetriNetUnfolderBase]: For 38558/40942 co-relation queries the response was YES. [2024-11-28 03:56:41,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70844 conditions, 25642 events. 17024/25642 cut-off events. For 38558/40942 co-relation queries the response was YES. Maximal size of possible extension queue 1402. Compared 197539 event pairs, 7060 based on Foata normal form. 2709/27651 useless extension candidates. Maximal degree in co-relation 56947. Up to 12833 conditions per place. [2024-11-28 03:56:41,219 INFO L140 encePairwiseOnDemand]: 91/98 looper letters, 0 selfloop transitions, 0 changer transitions 213/213 dead transitions. [2024-11-28 03:56:41,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 213 transitions, 1187 flow [2024-11-28 03:56:41,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:56:41,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:56:41,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 435 transitions. [2024-11-28 03:56:41,221 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7397959183673469 [2024-11-28 03:56:41,221 INFO L175 Difference]: Start difference. First operand has 101 places, 88 transitions, 321 flow. Second operand 6 states and 435 transitions. [2024-11-28 03:56:41,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 213 transitions, 1187 flow [2024-11-28 03:56:41,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 213 transitions, 1169 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-11-28 03:56:41,560 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2024-11-28 03:56:41,560 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=98, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2024-11-28 03:56:41,561 INFO L279 CegarLoopForPetriNet]: 88 programPoint places, 12 predicate places. [2024-11-28 03:56:41,561 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2024-11-28 03:56:41,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 51.4) internal successors, (257), 5 states have internal predecessors, (257), 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 03:56:41,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 39 remaining) [2024-11-28 03:56:41,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 39 remaining) [2024-11-28 03:56:41,564 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 39 remaining) [2024-11-28 03:56:41,565 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 39 remaining) [2024-11-28 03:56:41,566 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 39 remaining) [2024-11-28 03:56:41,567 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 39 remaining) [2024-11-28 03:56:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 39 remaining) [2024-11-28 03:56:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 39 remaining) [2024-11-28 03:56:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 39 remaining) [2024-11-28 03:56:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 39 remaining) [2024-11-28 03:56:41,568 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 39 remaining) [2024-11-28 03:56:41,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:56:41,568 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:41,574 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 03:56:41,574 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 03:56:41,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:56:41 BasicIcfg [2024-11-28 03:56:41,580 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 03:56:41,581 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 03:56:41,581 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 03:56:41,581 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 03:56:41,582 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:55:56" (3/4) ... [2024-11-28 03:56:41,584 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 03:56:41,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-28 03:56:41,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-28 03:56:41,587 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-28 03:56:41,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-11-28 03:56:41,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-28 03:56:41,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 03:56:41,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 03:56:41,673 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 03:56:41,677 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 03:56:41,677 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 03:56:41,678 INFO L158 Benchmark]: Toolchain (without parser) took 46665.20ms. Allocated memory was 117.4MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 92.7MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-11-28 03:56:41,678 INFO L158 Benchmark]: CDTParser took 1.44ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:56:41,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.92ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:56:41,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.56ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:56:41,679 INFO L158 Benchmark]: Boogie Preprocessor took 41.69ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 03:56:41,679 INFO L158 Benchmark]: RCFGBuilder took 1062.87ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 76.6MB in the end (delta: -51.4kB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2024-11-28 03:56:41,679 INFO L158 Benchmark]: TraceAbstraction took 45166.59ms. Allocated memory was 117.4MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 76.0MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-11-28 03:56:41,680 INFO L158 Benchmark]: Witness Printer took 96.33ms. Allocated memory is still 4.1GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 03:56:41,683 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.92ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.7MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.56ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.69ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 76.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1062.87ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 76.6MB in the end (delta: -51.4kB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * TraceAbstraction took 45166.59ms. Allocated memory was 117.4MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 76.0MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 96.33ms. Allocated memory is still 4.1GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 88]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: 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 7 procedures, 159 locations, 39 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: 45.0s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 42.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2269 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1934 mSDsluCounter, 240 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 163 mSDsCounter, 105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4500 IncrementalHoareTripleChecker+Invalid, 4605 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 105 mSolverCounterUnsat, 77 mSDtfsCounter, 4500 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=321occurred in iteration=20, InterpolantAutomatonStates: 97, 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: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 788 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 03:56:41,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0ff2716-cc64-48dc-a2d0-2b7c31726295/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