./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:19:39,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:19:39,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:19:39,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:19:39,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:19:39,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:19:39,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:19:39,539 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:19:39,540 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:19:39,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:19:39,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:19:39,547 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:19:39,548 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:19:39,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:19:39,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:19:39,550 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:19:39,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:19:39,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:19:39,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:19:39,553 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:19:39,553 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:19:39,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:19:39,554 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:19:39,555 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:19:39,555 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:19:39,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:19:39,556 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:19:39,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:19:39,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:19:39,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:19:39,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:19:39,560 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:19:39,560 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:19:39,560 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:19:39,561 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:19:39,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:19:39,561 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:19:39,562 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:19:39,562 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:19:39,562 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:19:39,562 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:19:39,563 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d24e1fe59577ae07a5b7a898c9dc79f871eafbb8fdf9529a0c24eed9c094f3d [2023-11-06 22:19:39,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:19:39,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:19:39,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:19:39,903 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:19:39,903 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:19:39,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2023-11-06 22:19:42,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:19:43,376 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:19:43,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/sv-benchmarks/c/goblint-regression/28-race_reach_27-funptr_racing.i [2023-11-06 22:19:43,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/data/011e788d7/4824e441deb04abf8aae27e6ff0aae99/FLAGbcb120247 [2023-11-06 22:19:43,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/data/011e788d7/4824e441deb04abf8aae27e6ff0aae99 [2023-11-06 22:19:43,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:19:43,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:19:43,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:19:43,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:19:43,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:19:43,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:19:43" (1/1) ... [2023-11-06 22:19:43,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab5ecb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:43, skipping insertion in model container [2023-11-06 22:19:43,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:19:43" (1/1) ... [2023-11-06 22:19:43,523 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:19:44,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:19:44,092 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:19:44,158 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:19:44,254 WARN L672 CHandler]: The function g is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:19:44,262 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:19:44,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44 WrapperNode [2023-11-06 22:19:44,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:19:44,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:19:44,265 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:19:44,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:19:44,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,361 INFO L138 Inliner]: procedures = 273, calls = 44, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 164 [2023-11-06 22:19:44,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:19:44,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:19:44,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:19:44,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:19:44,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,394 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,396 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:19:44,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:19:44,401 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:19:44,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:19:44,402 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (1/1) ... [2023-11-06 22:19:44,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:19:44,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:19:44,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:19:44,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:19:44,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:19:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:19:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:19:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:19:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:19:44,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:19:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:19:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:19:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:19:44,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:19:44,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:19:44,489 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:19:44,633 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:19:44,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:19:44,962 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:19:44,973 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:19:44,973 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-06 22:19:44,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:19:44 BoogieIcfgContainer [2023-11-06 22:19:44,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:19:44,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:19:44,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:19:44,983 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:19:44,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:19:43" (1/3) ... [2023-11-06 22:19:44,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1974be21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:19:44, skipping insertion in model container [2023-11-06 22:19:44,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:19:44" (2/3) ... [2023-11-06 22:19:44,985 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1974be21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:19:44, skipping insertion in model container [2023-11-06 22:19:44,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:19:44" (3/3) ... [2023-11-06 22:19:44,986 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_27-funptr_racing.i [2023-11-06 22:19:44,996 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:19:45,006 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:19:45,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-06 22:19:45,007 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:19:45,097 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:19:45,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 178 transitions, 363 flow [2023-11-06 22:19:45,248 INFO L124 PetriNetUnfolderBase]: 26/224 cut-off events. [2023-11-06 22:19:45,249 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:19:45,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 224 events. 26/224 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 693 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 134. Up to 4 conditions per place. [2023-11-06 22:19:45,260 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 178 transitions, 363 flow [2023-11-06 22:19:45,275 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 175 transitions, 357 flow [2023-11-06 22:19:45,280 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:19:45,303 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 159 places, 175 transitions, 357 flow [2023-11-06 22:19:45,309 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 159 places, 175 transitions, 357 flow [2023-11-06 22:19:45,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 175 transitions, 357 flow [2023-11-06 22:19:45,422 INFO L124 PetriNetUnfolderBase]: 25/221 cut-off events. [2023-11-06 22:19:45,423 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:19:45,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 221 events. 25/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 691 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 134. Up to 4 conditions per place. [2023-11-06 22:19:45,438 INFO L119 LiptonReduction]: Number of co-enabled transitions 8848 [2023-11-06 22:19:50,471 INFO L134 LiptonReduction]: Checked pairs total: 16229 [2023-11-06 22:19:50,471 INFO L136 LiptonReduction]: Total number of compositions: 157 [2023-11-06 22:19:50,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:19:50,494 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@466178df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:19:50,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-06 22:19:50,498 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:19:50,498 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-06 22:19:50,498 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:19:50,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:19:50,499 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:19:50,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-06 22:19:50,505 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:50,506 INFO L85 PathProgramCache]: Analyzing trace with hash 21715141, now seen corresponding path program 1 times [2023-11-06 22:19:50,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:19:50,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305557558] [2023-11-06 22:19:50,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:50,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:19:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:50,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:50,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:19:50,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305557558] [2023-11-06 22:19:50,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305557558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:50,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:50,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:19:50,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268518280] [2023-11-06 22:19:50,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:50,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:19:50,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:19:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:19:50,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:19:50,952 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 151 out of 335 [2023-11-06 22:19:50,955 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 67 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:50,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:19:50,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 151 of 335 [2023-11-06 22:19:50,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:19:51,134 INFO L124 PetriNetUnfolderBase]: 251/558 cut-off events. [2023-11-06 22:19:51,134 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:19:51,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1095 conditions, 558 events. 251/558 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2849 event pairs, 207 based on Foata normal form. 47/453 useless extension candidates. Maximal degree in co-relation 1075. Up to 504 conditions per place. [2023-11-06 22:19:51,141 INFO L140 encePairwiseOnDemand]: 313/335 looper letters, 64 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2023-11-06 22:19:51,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 73 transitions, 285 flow [2023-11-06 22:19:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:19:51,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:19:51,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 551 transitions. [2023-11-06 22:19:51,159 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5482587064676617 [2023-11-06 22:19:51,159 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 551 transitions. [2023-11-06 22:19:51,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 551 transitions. [2023-11-06 22:19:51,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:19:51,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 551 transitions. [2023-11-06 22:19:51,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 183.66666666666666) internal successors, (551), 3 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:51,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 335.0) internal successors, (1340), 4 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:51,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 335.0) internal successors, (1340), 4 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:51,182 INFO L175 Difference]: Start difference. First operand has 53 places, 67 transitions, 141 flow. Second operand 3 states and 551 transitions. [2023-11-06 22:19:51,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 73 transitions, 285 flow [2023-11-06 22:19:51,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 73 transitions, 285 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:19:51,189 INFO L231 Difference]: Finished difference. Result has 52 places, 47 transitions, 109 flow [2023-11-06 22:19:51,191 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=335, PETRI_DIFFERENCE_MINUEND_FLOW=101, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=52, PETRI_TRANSITIONS=47} [2023-11-06 22:19:51,195 INFO L281 CegarLoopForPetriNet]: 53 programPoint places, -1 predicate places. [2023-11-06 22:19:51,196 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 47 transitions, 109 flow [2023-11-06 22:19:51,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.33333333333334) internal successors, (457), 3 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:51,197 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:19:51,197 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 22:19:51,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:19:51,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-06 22:19:51,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:51,198 INFO L85 PathProgramCache]: Analyzing trace with hash -606524577, now seen corresponding path program 1 times [2023-11-06 22:19:51,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:19:51,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983348816] [2023-11-06 22:19:51,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:51,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:19:51,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:19:51,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:19:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:19:51,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:19:51,269 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:19:51,271 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2023-11-06 22:19:51,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2023-11-06 22:19:51,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2023-11-06 22:19:51,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2023-11-06 22:19:51,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2023-11-06 22:19:51,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2023-11-06 22:19:51,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2023-11-06 22:19:51,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2023-11-06 22:19:51,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2023-11-06 22:19:51,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2023-11-06 22:19:51,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2023-11-06 22:19:51,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2023-11-06 22:19:51,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2023-11-06 22:19:51,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2023-11-06 22:19:51,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2023-11-06 22:19:51,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2023-11-06 22:19:51,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2023-11-06 22:19:51,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2023-11-06 22:19:51,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2023-11-06 22:19:51,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2023-11-06 22:19:51,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2023-11-06 22:19:51,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:19:51,279 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:19:51,283 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:19:51,283 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 22:19:51,321 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:19:51,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 259 transitions, 534 flow [2023-11-06 22:19:51,476 INFO L124 PetriNetUnfolderBase]: 48/389 cut-off events. [2023-11-06 22:19:51,484 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:19:51,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 389 events. 48/389 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1484 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 234. Up to 8 conditions per place. [2023-11-06 22:19:51,504 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 259 transitions, 534 flow [2023-11-06 22:19:51,513 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 259 transitions, 534 flow [2023-11-06 22:19:51,514 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:19:51,514 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 259 transitions, 534 flow [2023-11-06 22:19:51,515 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 259 transitions, 534 flow [2023-11-06 22:19:51,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 259 transitions, 534 flow [2023-11-06 22:19:51,591 INFO L124 PetriNetUnfolderBase]: 48/389 cut-off events. [2023-11-06 22:19:51,591 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:19:51,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 401 conditions, 389 events. 48/389 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1484 event pairs, 0 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 234. Up to 8 conditions per place. [2023-11-06 22:19:51,621 INFO L119 LiptonReduction]: Number of co-enabled transitions 33180 [2023-11-06 22:19:56,995 INFO L134 LiptonReduction]: Checked pairs total: 89058 [2023-11-06 22:19:56,995 INFO L136 LiptonReduction]: Total number of compositions: 210 [2023-11-06 22:19:56,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:19:57,000 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@466178df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:19:57,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2023-11-06 22:19:57,003 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:19:57,003 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 22:19:57,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:19:57,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:19:57,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:19:57,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-06 22:19:57,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:57,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1198182572, now seen corresponding path program 1 times [2023-11-06 22:19:57,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:19:57,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077432307] [2023-11-06 22:19:57,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:57,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:19:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:57,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:19:57,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:19:57,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077432307] [2023-11-06 22:19:57,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077432307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:57,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:57,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:19:57,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726664916] [2023-11-06 22:19:57,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:57,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:19:57,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:19:57,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:19:57,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:19:57,117 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 469 [2023-11-06 22:19:57,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 121 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:19:57,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:19:57,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 469 [2023-11-06 22:19:57,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:01,441 INFO L124 PetriNetUnfolderBase]: 21636/34526 cut-off events. [2023-11-06 22:20:01,442 INFO L125 PetriNetUnfolderBase]: For 152/152 co-relation queries the response was YES. [2023-11-06 22:20:01,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67836 conditions, 34526 events. 21636/34526 cut-off events. For 152/152 co-relation queries the response was YES. Maximal size of possible extension queue 1211. Compared 267924 event pairs, 9912 based on Foata normal form. 2322/26578 useless extension candidates. Maximal degree in co-relation 3783. Up to 33126 conditions per place. [2023-11-06 22:20:01,742 INFO L140 encePairwiseOnDemand]: 436/469 looper letters, 107 selfloop transitions, 2 changer transitions 0/122 dead transitions. [2023-11-06 22:20:01,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 122 transitions, 478 flow [2023-11-06 22:20:01,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:01,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:01,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 806 transitions. [2023-11-06 22:20:01,747 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5728500355366027 [2023-11-06 22:20:01,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 806 transitions. [2023-11-06 22:20:01,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 806 transitions. [2023-11-06 22:20:01,749 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:01,749 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 806 transitions. [2023-11-06 22:20:01,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:01,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:01,761 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:01,761 INFO L175 Difference]: Start difference. First operand has 94 places, 121 transitions, 258 flow. Second operand 3 states and 806 transitions. [2023-11-06 22:20:01,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 122 transitions, 478 flow [2023-11-06 22:20:01,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 122 transitions, 478 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:20:01,772 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 214 flow [2023-11-06 22:20:01,772 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=214, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2023-11-06 22:20:01,774 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 1 predicate places. [2023-11-06 22:20:01,774 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 214 flow [2023-11-06 22:20:01,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:01,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:01,775 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:20:01,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:20:01,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-06 22:20:01,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:01,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1106533806, now seen corresponding path program 1 times [2023-11-06 22:20:01,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:01,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652972422] [2023-11-06 22:20:01,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:01,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:01,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:01,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652972422] [2023-11-06 22:20:01,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652972422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:01,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:01,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:20:01,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321460323] [2023-11-06 22:20:01,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:01,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:01,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:01,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:01,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:01,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 469 [2023-11-06 22:20:01,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:01,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:01,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 469 [2023-11-06 22:20:01,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:05,005 INFO L124 PetriNetUnfolderBase]: 19317/30450 cut-off events. [2023-11-06 22:20:05,005 INFO L125 PetriNetUnfolderBase]: For 1732/1732 co-relation queries the response was YES. [2023-11-06 22:20:05,068 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63370 conditions, 30450 events. 19317/30450 cut-off events. For 1732/1732 co-relation queries the response was YES. Maximal size of possible extension queue 1042. Compared 227513 event pairs, 6434 based on Foata normal form. 117/22802 useless extension candidates. Maximal degree in co-relation 63200. Up to 26656 conditions per place. [2023-11-06 22:20:05,193 INFO L140 encePairwiseOnDemand]: 456/469 looper letters, 108 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2023-11-06 22:20:05,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 126 transitions, 524 flow [2023-11-06 22:20:05,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:05,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:05,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 764 transitions. [2023-11-06 22:20:05,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5429992892679459 [2023-11-06 22:20:05,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 764 transitions. [2023-11-06 22:20:05,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 764 transitions. [2023-11-06 22:20:05,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:05,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 764 transitions. [2023-11-06 22:20:05,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 254.66666666666666) internal successors, (764), 3 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:05,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:05,208 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:05,209 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 214 flow. Second operand 3 states and 764 transitions. [2023-11-06 22:20:05,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 126 transitions, 524 flow [2023-11-06 22:20:05,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 126 transitions, 521 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:05,218 INFO L231 Difference]: Finished difference. Result has 97 places, 96 transitions, 259 flow [2023-11-06 22:20:05,219 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=259, PETRI_PLACES=97, PETRI_TRANSITIONS=96} [2023-11-06 22:20:05,222 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 3 predicate places. [2023-11-06 22:20:05,223 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 96 transitions, 259 flow [2023-11-06 22:20:05,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:05,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:05,224 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:20:05,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:20:05,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-06 22:20:05,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:05,225 INFO L85 PathProgramCache]: Analyzing trace with hash 71904003, now seen corresponding path program 1 times [2023-11-06 22:20:05,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:05,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894126263] [2023-11-06 22:20:05,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:05,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:20:05,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:05,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894126263] [2023-11-06 22:20:05,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894126263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:05,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:05,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:20:05,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835171970] [2023-11-06 22:20:05,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:05,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:05,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:05,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:05,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:05,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 469 [2023-11-06 22:20:05,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:05,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:05,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 469 [2023-11-06 22:20:05,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:08,116 INFO L124 PetriNetUnfolderBase]: 17819/29280 cut-off events. [2023-11-06 22:20:08,116 INFO L125 PetriNetUnfolderBase]: For 2838/2838 co-relation queries the response was YES. [2023-11-06 22:20:08,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62457 conditions, 29280 events. 17819/29280 cut-off events. For 2838/2838 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 236000 event pairs, 3520 based on Foata normal form. 0/23289 useless extension candidates. Maximal degree in co-relation 27374. Up to 21336 conditions per place. [2023-11-06 22:20:08,345 INFO L140 encePairwiseOnDemand]: 465/469 looper letters, 141 selfloop transitions, 4 changer transitions 0/158 dead transitions. [2023-11-06 22:20:08,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 158 transitions, 707 flow [2023-11-06 22:20:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:20:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:20:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 788 transitions. [2023-11-06 22:20:08,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5600568585643213 [2023-11-06 22:20:08,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 788 transitions. [2023-11-06 22:20:08,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 788 transitions. [2023-11-06 22:20:08,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:08,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 788 transitions. [2023-11-06 22:20:08,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.6666666666667) internal successors, (788), 3 states have internal predecessors, (788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:08,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:08,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 469.0) internal successors, (1876), 4 states have internal predecessors, (1876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:08,361 INFO L175 Difference]: Start difference. First operand has 97 places, 96 transitions, 259 flow. Second operand 3 states and 788 transitions. [2023-11-06 22:20:08,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 158 transitions, 707 flow [2023-11-06 22:20:08,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 158 transitions, 698 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:08,371 INFO L231 Difference]: Finished difference. Result has 98 places, 96 transitions, 266 flow [2023-11-06 22:20:08,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=98, PETRI_TRANSITIONS=96} [2023-11-06 22:20:08,373 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 4 predicate places. [2023-11-06 22:20:08,373 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 96 transitions, 266 flow [2023-11-06 22:20:08,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:08,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:08,374 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2023-11-06 22:20:08,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:20:08,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-06 22:20:08,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:08,376 INFO L85 PathProgramCache]: Analyzing trace with hash 71903976, now seen corresponding path program 1 times [2023-11-06 22:20:08,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:08,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413063536] [2023-11-06 22:20:08,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:08,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:08,491 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:08,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:08,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413063536] [2023-11-06 22:20:08,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413063536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:20:08,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332546124] [2023-11-06 22:20:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:08,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:20:08,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:20:08,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:20:08,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:20:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:08,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:20:08,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:20:08,722 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:08,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:20:08,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332546124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:08,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:20:08,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-06 22:20:08,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416644684] [2023-11-06 22:20:08,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:08,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:20:08,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:08,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:20:08,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:20:08,751 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 469 [2023-11-06 22:20:08,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 96 transitions, 266 flow. Second operand has 4 states, 4 states have (on average 219.75) internal successors, (879), 4 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:08,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:08,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 469 [2023-11-06 22:20:08,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:20:11,379 INFO L124 PetriNetUnfolderBase]: 16321/27157 cut-off events. [2023-11-06 22:20:11,380 INFO L125 PetriNetUnfolderBase]: For 8664/8664 co-relation queries the response was YES. [2023-11-06 22:20:11,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58985 conditions, 27157 events. 16321/27157 cut-off events. For 8664/8664 co-relation queries the response was YES. Maximal size of possible extension queue 918. Compared 221569 event pairs, 1624 based on Foata normal form. 753/23037 useless extension candidates. Maximal degree in co-relation 6155. Up to 19035 conditions per place. [2023-11-06 22:20:11,543 INFO L140 encePairwiseOnDemand]: 465/469 looper letters, 166 selfloop transitions, 3 changer transitions 0/182 dead transitions. [2023-11-06 22:20:11,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 182 transitions, 810 flow [2023-11-06 22:20:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:20:11,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-06 22:20:11,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1034 transitions. [2023-11-06 22:20:11,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5511727078891258 [2023-11-06 22:20:11,548 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1034 transitions. [2023-11-06 22:20:11,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1034 transitions. [2023-11-06 22:20:11,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:20:11,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1034 transitions. [2023-11-06 22:20:11,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 258.5) internal successors, (1034), 4 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:11,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 469.0) internal successors, (2345), 5 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:11,560 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 469.0) internal successors, (2345), 5 states have internal predecessors, (2345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:11,560 INFO L175 Difference]: Start difference. First operand has 98 places, 96 transitions, 266 flow. Second operand 4 states and 1034 transitions. [2023-11-06 22:20:11,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 182 transitions, 810 flow [2023-11-06 22:20:11,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 182 transitions, 806 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:20:11,573 INFO L231 Difference]: Finished difference. Result has 99 places, 95 transitions, 264 flow [2023-11-06 22:20:11,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=469, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=99, PETRI_TRANSITIONS=95} [2023-11-06 22:20:11,578 INFO L281 CegarLoopForPetriNet]: 94 programPoint places, 5 predicate places. [2023-11-06 22:20:11,578 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 95 transitions, 264 flow [2023-11-06 22:20:11,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 219.75) internal successors, (879), 4 states have internal predecessors, (879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:11,583 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:11,583 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-06 22:20:11,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:20:11,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e31e41-941a-4567-905d-a98e752f450d/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 22:20:11,791 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-06 22:20:11,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:11,792 INFO L85 PathProgramCache]: Analyzing trace with hash 380336818, now seen corresponding path program 1 times [2023-11-06 22:20:11,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:11,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816636459] [2023-11-06 22:20:11,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:11,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:11,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:20:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:20:11,847 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:20:11,848 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:20:11,848 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2023-11-06 22:20:11,848 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2023-11-06 22:20:11,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2023-11-06 22:20:11,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2023-11-06 22:20:11,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2023-11-06 22:20:11,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2023-11-06 22:20:11,849 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2023-11-06 22:20:11,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2023-11-06 22:20:11,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2023-11-06 22:20:11,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2023-11-06 22:20:11,850 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2023-11-06 22:20:11,851 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2023-11-06 22:20:11,852 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2023-11-06 22:20:11,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2023-11-06 22:20:11,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2023-11-06 22:20:11,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2023-11-06 22:20:11,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2023-11-06 22:20:11,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2023-11-06 22:20:11,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2023-11-06 22:20:11,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2023-11-06 22:20:11,859 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2023-11-06 22:20:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2023-11-06 22:20:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2023-11-06 22:20:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2023-11-06 22:20:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2023-11-06 22:20:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2023-11-06 22:20:11,860 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2023-11-06 22:20:11,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2023-11-06 22:20:11,861 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2023-11-06 22:20:11,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:20:11,861 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:20:11,862 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:20:11,863 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-06 22:20:11,916 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-06 22:20:12,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 340 transitions, 707 flow [2023-11-06 22:20:12,185 INFO L124 PetriNetUnfolderBase]: 75/597 cut-off events. [2023-11-06 22:20:12,185 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-06 22:20:12,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 597 events. 75/597 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2526 event pairs, 1 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 397. Up to 16 conditions per place. [2023-11-06 22:20:12,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 299 places, 340 transitions, 707 flow [2023-11-06 22:20:12,207 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 299 places, 340 transitions, 707 flow [2023-11-06 22:20:12,208 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:20:12,208 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 299 places, 340 transitions, 707 flow [2023-11-06 22:20:12,208 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 299 places, 340 transitions, 707 flow [2023-11-06 22:20:12,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 299 places, 340 transitions, 707 flow [2023-11-06 22:20:12,364 INFO L124 PetriNetUnfolderBase]: 75/597 cut-off events. [2023-11-06 22:20:12,364 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-06 22:20:12,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 622 conditions, 597 events. 75/597 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2526 event pairs, 1 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 397. Up to 16 conditions per place. [2023-11-06 22:20:12,419 INFO L119 LiptonReduction]: Number of co-enabled transitions 69204 [2023-11-06 22:20:18,382 INFO L134 LiptonReduction]: Checked pairs total: 198838 [2023-11-06 22:20:18,382 INFO L136 LiptonReduction]: Total number of compositions: 264 [2023-11-06 22:20:18,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:20:18,385 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@466178df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:20:18,385 INFO L358 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2023-11-06 22:20:18,388 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:20:18,388 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-06 22:20:18,388 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:20:18,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:20:18,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:20:18,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 34 more)] === [2023-11-06 22:20:18,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:20:18,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1851763900, now seen corresponding path program 1 times [2023-11-06 22:20:18,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:20:18,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322593935] [2023-11-06 22:20:18,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:20:18,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:20:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:20:18,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:20:18,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:20:18,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322593935] [2023-11-06 22:20:18,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322593935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:20:18,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:20:18,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:20:18,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53143471] [2023-11-06 22:20:18,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:20:18,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:20:18,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:20:18,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:20:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:20:18,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 604 [2023-11-06 22:20:18,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 166 transitions, 359 flow. Second operand has 3 states, 3 states have (on average 286.3333333333333) internal successors, (859), 3 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:20:18,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:20:18,440 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 604 [2023-11-06 22:20:18,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand