./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/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_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/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_432948a7-b687-47b7-b724-78be9c660147/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 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:44:32,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:44:32,929 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 22:44:32,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:44:32,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:44:32,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:44:32,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:44:32,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:44:32,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:44:32,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:44:32,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:44:32,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:44:32,994 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:44:32,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:44:32,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:44:32,997 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:44:32,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:44:32,998 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:44:32,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:44:32,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:44:32,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:44:33,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:44:33,001 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:44:33,001 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:44:33,001 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:44:33,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:44:33,002 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:44:33,003 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:44:33,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:44:33,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:44:33,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:33,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:44:33,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:44:33,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:44:33,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:44:33,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:44:33,007 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:44:33,007 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:44:33,008 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:44:33,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:44:33,008 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:44:33,009 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_432948a7-b687-47b7-b724-78be9c660147/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7df5d4e763d99c6ca9aa3d4daa03dcc5b8b9d65829db9a89ff85ebe5a14f3ac3 [2023-11-06 22:44:33,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:44:33,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:44:33,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:44:33,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:44:33,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:44:33,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2023-11-06 22:44:36,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:44:36,763 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:44:36,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/sv-benchmarks/c/goblint-regression/28-race_reach_03-munge_racing.i [2023-11-06 22:44:36,797 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/data/24d32af94/3c4e2d6d899f45758640d49bbf899f6c/FLAG6317a0599 [2023-11-06 22:44:36,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/data/24d32af94/3c4e2d6d899f45758640d49bbf899f6c [2023-11-06 22:44:36,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:44:36,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:44:36,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:36,831 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:44:36,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:44:36,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:36" (1/1) ... [2023-11-06 22:44:36,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4338590b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:36, skipping insertion in model container [2023-11-06 22:44:36,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:36" (1/1) ... [2023-11-06 22:44:36,912 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:44:37,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:37,337 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:44:37,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:44:37,444 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:44:37,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37 WrapperNode [2023-11-06 22:44:37,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:44:37,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:37,447 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:44:37,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:44:37,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,540 INFO L138 Inliner]: procedures = 172, calls = 44, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 226 [2023-11-06 22:44:37,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:44:37,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:44:37,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:44:37,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:44:37,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,570 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,570 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,597 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:44:37,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:44:37,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:44:37,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:44:37,608 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (1/1) ... [2023-11-06 22:44:37,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:44:37,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:37,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:44:37,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_432948a7-b687-47b7-b724-78be9c660147/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:44:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:44:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-06 22:44:37,701 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-06 22:44:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:44:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:44:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:44:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:44:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-06 22:44:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-06 22:44:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:44:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:44:37,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:44:37,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:44:37,705 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 22:44:37,917 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:44:37,920 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:44:38,288 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:44:38,299 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:44:38,299 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-06 22:44:38,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:38 BoogieIcfgContainer [2023-11-06 22:44:38,303 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:44:38,306 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:44:38,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:44:38,310 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:44:38,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:36" (1/3) ... [2023-11-06 22:44:38,311 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645d5ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:38, skipping insertion in model container [2023-11-06 22:44:38,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:37" (2/3) ... [2023-11-06 22:44:38,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@645d5ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:38, skipping insertion in model container [2023-11-06 22:44:38,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:38" (3/3) ... [2023-11-06 22:44:38,313 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2023-11-06 22:44:38,323 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:44:38,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:44:38,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-06 22:44:38,336 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:44:38,483 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-06 22:44:38,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 221 places, 250 transitions, 520 flow [2023-11-06 22:44:38,804 INFO L124 PetriNetUnfolderBase]: 61/457 cut-off events. [2023-11-06 22:44:38,804 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:44:38,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 457 events. 61/457 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2094 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2023-11-06 22:44:38,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 250 transitions, 520 flow [2023-11-06 22:44:38,830 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 221 places, 250 transitions, 520 flow [2023-11-06 22:44:38,834 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:44:38,846 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 221 places, 250 transitions, 520 flow [2023-11-06 22:44:38,849 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 221 places, 250 transitions, 520 flow [2023-11-06 22:44:38,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 221 places, 250 transitions, 520 flow [2023-11-06 22:44:38,984 INFO L124 PetriNetUnfolderBase]: 61/457 cut-off events. [2023-11-06 22:44:38,984 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:44:38,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 474 conditions, 457 events. 61/457 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2094 event pairs, 0 based on Foata normal form. 0/360 useless extension candidates. Maximal degree in co-relation 245. Up to 8 conditions per place. [2023-11-06 22:44:39,016 INFO L119 LiptonReduction]: Number of co-enabled transitions 28000 [2023-11-06 22:44:44,617 INFO L134 LiptonReduction]: Checked pairs total: 49085 [2023-11-06 22:44:44,617 INFO L136 LiptonReduction]: Total number of compositions: 212 [2023-11-06 22:44:44,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:44:44,642 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;@14dea608, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:44:44,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-06 22:44:44,646 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:44:44,647 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2023-11-06 22:44:44,647 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:44:44,647 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:44,648 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:44:44,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-06 22:44:44,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:44,654 INFO L85 PathProgramCache]: Analyzing trace with hash 31285177, now seen corresponding path program 1 times [2023-11-06 22:44:44,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:44,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634260076] [2023-11-06 22:44:44,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:44,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:44,986 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 22:44:44,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:44,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634260076] [2023-11-06 22:44:44,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634260076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:44,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:44,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:44:44,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469317856] [2023-11-06 22:44:44,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:44,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:45,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:45,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:45,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:45,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 462 [2023-11-06 22:44:45,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 97 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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 22:44:45,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:45,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 462 [2023-11-06 22:44:45,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:44:46,853 INFO L124 PetriNetUnfolderBase]: 8113/13099 cut-off events. [2023-11-06 22:44:46,853 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2023-11-06 22:44:46,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25578 conditions, 13099 events. 8113/13099 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 85774 event pairs, 6104 based on Foata normal form. 1256/9688 useless extension candidates. Maximal degree in co-relation 24476. Up to 12331 conditions per place. [2023-11-06 22:44:46,956 INFO L140 encePairwiseOnDemand]: 435/462 looper letters, 80 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2023-11-06 22:44:46,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 92 transitions, 368 flow [2023-11-06 22:44:46,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:44:46,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:44:46,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 742 transitions. [2023-11-06 22:44:46,980 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5353535353535354 [2023-11-06 22:44:46,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 742 transitions. [2023-11-06 22:44:46,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 742 transitions. [2023-11-06 22:44:46,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:44:46,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 742 transitions. [2023-11-06 22:44:46,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.33333333333334) internal successors, (742), 3 states have internal predecessors, (742), 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 22:44:47,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 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 22:44:47,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 462.0) internal successors, (1848), 4 states have internal predecessors, (1848), 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 22:44:47,009 INFO L175 Difference]: Start difference. First operand has 74 places, 97 transitions, 214 flow. Second operand 3 states and 742 transitions. [2023-11-06 22:44:47,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 92 transitions, 368 flow [2023-11-06 22:44:47,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 92 transitions, 368 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:44:47,021 INFO L231 Difference]: Finished difference. Result has 75 places, 73 transitions, 174 flow [2023-11-06 22:44:47,023 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=462, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=75, PETRI_TRANSITIONS=73} [2023-11-06 22:44:47,028 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 1 predicate places. [2023-11-06 22:44:47,028 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 73 transitions, 174 flow [2023-11-06 22:44:47,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 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 22:44:47,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:47,029 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-06 22:44:47,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:44:47,030 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2023-11-06 22:44:47,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:47,032 INFO L85 PathProgramCache]: Analyzing trace with hash 313933, now seen corresponding path program 1 times [2023-11-06 22:44:47,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:47,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787336242] [2023-11-06 22:44:47,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:47,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:44:47,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:44:47,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:44:47,178 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:44:47,179 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:44:47,180 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2023-11-06 22:44:47,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-06 22:44:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-06 22:44:47,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-06 22:44:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-06 22:44:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-06 22:44:47,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-06 22:44:47,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-06 22:44:47,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-06 22:44:47,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-06 22:44:47,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-06 22:44:47,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-06 22:44:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-11-06 22:44:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-06 22:44:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-06 22:44:47,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-06 22:44:47,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-06 22:44:47,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-06 22:44:47,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-06 22:44:47,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-06 22:44:47,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-06 22:44:47,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-06 22:44:47,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-06 22:44:47,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-06 22:44:47,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-06 22:44:47,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-06 22:44:47,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:44:47,197 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:44:47,200 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 22:44:47,201 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 22:44:47,364 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-06 22:44:47,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 396 transitions, 836 flow [2023-11-06 22:44:47,984 INFO L124 PetriNetUnfolderBase]: 205/1383 cut-off events. [2023-11-06 22:44:47,984 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-06 22:44:48,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1472 conditions, 1383 events. 205/1383 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 8826 event pairs, 1 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 824. Up to 32 conditions per place. [2023-11-06 22:44:48,009 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 396 transitions, 836 flow [2023-11-06 22:44:48,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 341 places, 396 transitions, 836 flow [2023-11-06 22:44:48,095 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:44:48,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 341 places, 396 transitions, 836 flow [2023-11-06 22:44:48,095 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 341 places, 396 transitions, 836 flow [2023-11-06 22:44:48,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 341 places, 396 transitions, 836 flow [2023-11-06 22:44:48,448 INFO L124 PetriNetUnfolderBase]: 205/1383 cut-off events. [2023-11-06 22:44:48,448 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-06 22:44:48,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1472 conditions, 1383 events. 205/1383 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 8826 event pairs, 1 based on Foata normal form. 0/1083 useless extension candidates. Maximal degree in co-relation 824. Up to 32 conditions per place. [2023-11-06 22:44:48,616 INFO L119 LiptonReduction]: Number of co-enabled transitions 98000 [2023-11-06 22:44:55,511 INFO L134 LiptonReduction]: Checked pairs total: 198997 [2023-11-06 22:44:55,511 INFO L136 LiptonReduction]: Total number of compositions: 323 [2023-11-06 22:44:55,514 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:44:55,515 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;@14dea608, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:44:55,515 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-06 22:44:55,518 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:44:55,518 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2023-11-06 22:44:55,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:44:55,519 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:44:55,519 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:44:55,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-06 22:44:55,520 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:55,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1792887174, now seen corresponding path program 1 times [2023-11-06 22:44:55,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:55,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563077457] [2023-11-06 22:44:55,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:55,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:55,583 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 22:44:55,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:55,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563077457] [2023-11-06 22:44:55,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563077457] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:55,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:55,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:44:55,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489135670] [2023-11-06 22:44:55,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:55,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:44:55,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:55,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:44:55,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:44:55,599 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 719 [2023-11-06 22:44:55,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 173 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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 22:44:55,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:44:55,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 719 [2023-11-06 22:44:55,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand