./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:40:01,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:40:01,322 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:40:01,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:40:01,329 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:40:01,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:40:01,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:40:01,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:40:01,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:40:01,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:40:01,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:40:01,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:40:01,359 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:40:01,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:40:01,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:40:01,361 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:40:01,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:40:01,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:40:01,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:40:01,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:40:01,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:40:01,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:40:01,364 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:40:01,365 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:40:01,365 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:40:01,366 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:40:01,366 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:40:01,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:40:01,367 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:40:01,367 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:40:01,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:01,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:40:01,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:40:01,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:40:01,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:40:01,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:40:01,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:40:01,370 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:40:01,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:40:01,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:40:01,370 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:40:01,371 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_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b88fee59ad03447f68c116aa52c40e006cc633d8116aa4d446048afd18fa64f [2023-11-19 07:40:01,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:40:01,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:40:01,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:40:01,762 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:40:01,762 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:40:01,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-19 07:40:04,905 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:40:05,210 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:40:05,211 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/sv-benchmarks/c/goblint-regression/28-race_reach_09-ptrmunge_racing.i [2023-11-19 07:40:05,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/data/adfbaef35/bd0ee1c45a4940bdbbb4c0bd59b84bb7/FLAG5d8bcc066 [2023-11-19 07:40:05,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/data/adfbaef35/bd0ee1c45a4940bdbbb4c0bd59b84bb7 [2023-11-19 07:40:05,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:40:05,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:40:05,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:05,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:40:05,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:40:05,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e208416 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05, skipping insertion in model container [2023-11-19 07:40:05,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,305 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:40:05,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:05,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:40:05,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:40:05,854 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:40:05,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05 WrapperNode [2023-11-19 07:40:05,854 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:40:05,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:05,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:40:05,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:40:05,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,922 INFO L138 Inliner]: procedures = 172, calls = 51, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 243 [2023-11-19 07:40:05,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:40:05,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:40:05,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:40:05,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:40:05,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,938 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,957 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:40:05,964 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:40:05,964 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:40:05,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:40:05,965 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (1/1) ... [2023-11-19 07:40:05,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:40:05,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:40:06,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:40:06,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_966676b2-1f4d-4546-bec7-60e3bad6e169/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:40:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:40:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-19 07:40:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-19 07:40:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:40:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 07:40:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:40:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:40:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-19 07:40:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-19 07:40:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:40:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:40:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:40:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:40:06,069 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:40:06,249 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:40:06,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:40:06,705 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:40:06,727 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:40:06,728 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-19 07:40:06,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:06 BoogieIcfgContainer [2023-11-19 07:40:06,739 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:40:06,745 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:40:06,746 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:40:06,749 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:40:06,750 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:40:05" (1/3) ... [2023-11-19 07:40:06,751 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1742ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:06, skipping insertion in model container [2023-11-19 07:40:06,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:40:05" (2/3) ... [2023-11-19 07:40:06,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1742ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:40:06, skipping insertion in model container [2023-11-19 07:40:06,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:40:06" (3/3) ... [2023-11-19 07:40:06,753 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_09-ptrmunge_racing.i [2023-11-19 07:40:06,770 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:40:06,782 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:40:06,783 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 07:40:06,783 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:40:06,929 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 07:40:06,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 267 transitions, 554 flow [2023-11-19 07:40:07,274 INFO L124 PetriNetUnfolderBase]: 61/481 cut-off events. [2023-11-19 07:40:07,274 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 07:40:07,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 481 events. 61/481 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2233 event pairs, 0 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 259. Up to 8 conditions per place. [2023-11-19 07:40:07,292 INFO L82 GeneralOperation]: Start removeDead. Operand has 238 places, 267 transitions, 554 flow [2023-11-19 07:40:07,312 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 238 places, 267 transitions, 554 flow [2023-11-19 07:40:07,317 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:40:07,337 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 238 places, 267 transitions, 554 flow [2023-11-19 07:40:07,342 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 238 places, 267 transitions, 554 flow [2023-11-19 07:40:07,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 238 places, 267 transitions, 554 flow [2023-11-19 07:40:07,457 INFO L124 PetriNetUnfolderBase]: 61/481 cut-off events. [2023-11-19 07:40:07,457 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-19 07:40:07,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 481 events. 61/481 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2233 event pairs, 0 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 259. Up to 8 conditions per place. [2023-11-19 07:40:07,494 INFO L119 LiptonReduction]: Number of co-enabled transitions 31878 [2023-11-19 07:40:14,266 INFO L134 LiptonReduction]: Checked pairs total: 55956 [2023-11-19 07:40:14,266 INFO L136 LiptonReduction]: Total number of compositions: 239 [2023-11-19 07:40:14,284 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:14,291 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f5a9f7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:14,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-19 07:40:14,296 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:40:14,296 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2023-11-19 07:40:14,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:14,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:14,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-19 07:40:14,298 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)] === [2023-11-19 07:40:14,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:14,304 INFO L85 PathProgramCache]: Analyzing trace with hash 33546063, now seen corresponding path program 1 times [2023-11-19 07:40:14,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:14,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107955725] [2023-11-19 07:40:14,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:14,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:14,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:14,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:14,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107955725] [2023-11-19 07:40:14,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107955725] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:14,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:14,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:40:14,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897390387] [2023-11-19 07:40:14,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:14,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:14,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:14,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:14,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:14,732 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 225 out of 506 [2023-11-19 07:40:14,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 94 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2023-11-19 07:40:14,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:14,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 225 of 506 [2023-11-19 07:40:14,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:40:16,419 INFO L124 PetriNetUnfolderBase]: 6674/10965 cut-off events. [2023-11-19 07:40:16,420 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2023-11-19 07:40:16,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21135 conditions, 10965 events. 6674/10965 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 74800 event pairs, 5657 based on Foata normal form. 1528/8626 useless extension candidates. Maximal degree in co-relation 20196. Up to 10033 conditions per place. [2023-11-19 07:40:16,519 INFO L140 encePairwiseOnDemand]: 480/506 looper letters, 75 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2023-11-19 07:40:16,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 89 transitions, 352 flow [2023-11-19 07:40:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:40:16,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:40:16,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 787 transitions. [2023-11-19 07:40:16,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5184453227931489 [2023-11-19 07:40:16,549 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 787 transitions. [2023-11-19 07:40:16,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 787 transitions. [2023-11-19 07:40:16,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:40:16,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 787 transitions. [2023-11-19 07:40:16,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 262.3333333333333) internal successors, (787), 3 states have internal predecessors, (787), 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) [2023-11-19 07:40:16,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 506.0) internal successors, (2024), 4 states have internal predecessors, (2024), 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) [2023-11-19 07:40:16,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 506.0) internal successors, (2024), 4 states have internal predecessors, (2024), 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) [2023-11-19 07:40:16,580 INFO L175 Difference]: Start difference. First operand has 72 places, 94 transitions, 208 flow. Second operand 3 states and 787 transitions. [2023-11-19 07:40:16,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 89 transitions, 352 flow [2023-11-19 07:40:16,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 89 transitions, 352 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:40:16,595 INFO L231 Difference]: Finished difference. Result has 73 places, 71 transitions, 170 flow [2023-11-19 07:40:16,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=506, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=73, PETRI_TRANSITIONS=71} [2023-11-19 07:40:16,603 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 1 predicate places. [2023-11-19 07:40:16,604 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 71 transitions, 170 flow [2023-11-19 07:40:16,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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) [2023-11-19 07:40:16,605 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:16,605 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 07:40:16,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:40:16,606 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)] === [2023-11-19 07:40:16,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:16,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2121890128, now seen corresponding path program 1 times [2023-11-19 07:40:16,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:16,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330188381] [2023-11-19 07:40:16,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:16,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:16,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:40:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:40:16,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:40:16,727 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:40:16,729 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2023-11-19 07:40:16,731 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2023-11-19 07:40:16,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2023-11-19 07:40:16,732 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2023-11-19 07:40:16,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2023-11-19 07:40:16,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2023-11-19 07:40:16,733 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2023-11-19 07:40:16,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2023-11-19 07:40:16,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2023-11-19 07:40:16,734 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2023-11-19 07:40:16,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2023-11-19 07:40:16,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2023-11-19 07:40:16,735 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2023-11-19 07:40:16,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2023-11-19 07:40:16,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2023-11-19 07:40:16,736 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2023-11-19 07:40:16,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2023-11-19 07:40:16,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2023-11-19 07:40:16,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2023-11-19 07:40:16,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2023-11-19 07:40:16,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2023-11-19 07:40:16,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2023-11-19 07:40:16,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2023-11-19 07:40:16,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2023-11-19 07:40:16,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2023-11-19 07:40:16,739 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2023-11-19 07:40:16,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:40:16,740 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 07:40:16,743 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 07:40:16,744 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 07:40:16,817 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-19 07:40:16,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 372 places, 427 transitions, 898 flow [2023-11-19 07:40:17,276 INFO L124 PetriNetUnfolderBase]: 205/1442 cut-off events. [2023-11-19 07:40:17,276 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-19 07:40:17,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 1442 events. 205/1442 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9462 event pairs, 2 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 869. Up to 32 conditions per place. [2023-11-19 07:40:17,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 372 places, 427 transitions, 898 flow [2023-11-19 07:40:17,325 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 372 places, 427 transitions, 898 flow [2023-11-19 07:40:17,326 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:40:17,326 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 372 places, 427 transitions, 898 flow [2023-11-19 07:40:17,327 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 372 places, 427 transitions, 898 flow [2023-11-19 07:40:17,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 372 places, 427 transitions, 898 flow [2023-11-19 07:40:17,737 INFO L124 PetriNetUnfolderBase]: 205/1442 cut-off events. [2023-11-19 07:40:17,737 INFO L125 PetriNetUnfolderBase]: For 72/75 co-relation queries the response was YES. [2023-11-19 07:40:17,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 1442 events. 205/1442 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9462 event pairs, 2 based on Foata normal form. 0/1142 useless extension candidates. Maximal degree in co-relation 869. Up to 32 conditions per place. [2023-11-19 07:40:17,872 INFO L119 LiptonReduction]: Number of co-enabled transitions 114268 [2023-11-19 07:40:25,905 INFO L134 LiptonReduction]: Checked pairs total: 227663 [2023-11-19 07:40:25,906 INFO L136 LiptonReduction]: Total number of compositions: 371 [2023-11-19 07:40:25,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:40:25,917 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f5a9f7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:40:25,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2023-11-19 07:40:25,921 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:40:25,921 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2023-11-19 07:40:25,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:40:25,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:40:25,923 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:40:25,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2023-11-19 07:40:25,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:40:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1951132920, now seen corresponding path program 1 times [2023-11-19 07:40:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:40:25,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101150398] [2023-11-19 07:40:25,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:40:25,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:40:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:40:26,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:40:26,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:40:26,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101150398] [2023-11-19 07:40:26,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101150398] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:40:26,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:40:26,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:40:26,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359549053] [2023-11-19 07:40:26,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:40:26,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:40:26,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:40:26,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:40:26,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:40:26,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 353 out of 798 [2023-11-19 07:40:26,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 165 transitions, 374 flow. Second operand has 3 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 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) [2023-11-19 07:40:26,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:40:26,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 353 of 798 [2023-11-19 07:40:26,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand