./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX --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 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:06:43,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:06:43,170 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 19:06:43,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:06:43,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:06:43,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:06:43,214 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:06:43,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:06:43,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:06:43,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:06:43,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:06:43,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:06:43,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:06:43,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:06:43,217 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:06:43,218 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:06:43,218 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:06:43,219 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:06:43,219 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:06:43,220 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:06:43,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:06:43,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:06:43,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:06:43,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:06:43,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:06:43,223 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:06:43,223 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:06:43,224 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:06:43,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:06:43,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:06:43,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:06:43,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:06:43,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:06:43,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:06:43,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:06:43,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:06:43,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:06:43,232 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:06:43,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:06:43,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:06:43,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:06:43,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:06:43,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:06:43,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:06:43,234 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_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1eea0d699fc30cae440905f5eeea19b8e9e5d0b5cc249e9ffded8d356549b279 [2024-11-08 19:06:43,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:06:43,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:06:43,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:06:43,531 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:06:43,532 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:06:43,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i Unable to find full path for "g++" [2024-11-08 19:06:45,633 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:06:45,870 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:06:45,870 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/sv-benchmarks/c/goblint-regression/28-race_reach_24-sound_lock_racing.i [2024-11-08 19:06:45,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/data/0c8bed425/407af46b8d9846f4bf04cb983ee2bc41/FLAG295653485 [2024-11-08 19:06:46,195 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/data/0c8bed425/407af46b8d9846f4bf04cb983ee2bc41 [2024-11-08 19:06:46,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:06:46,200 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:06:46,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:06:46,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:06:46,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:06:46,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5884d535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46, skipping insertion in model container [2024-11-08 19:06:46,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,273 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:06:46,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:06:46,729 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:06:46,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:06:46,860 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:06:46,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46 WrapperNode [2024-11-08 19:06:46,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:06:46,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:06:46,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:06:46,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:06:46,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,883 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,904 INFO L138 Inliner]: procedures = 171, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 93 [2024-11-08 19:06:46,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:06:46,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:06:46,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:06:46,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:06:46,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,938 INFO L175 MemorySlicer]: Split 19 memory accesses to 4 slices as follows [2, 5, 2, 10]. 53 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 0, 10]. The 1 writes are split as follows [0, 0, 1, 0]. [2024-11-08 19:06:46,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:06:46,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:06:46,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:06:46,960 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:06:46,961 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (1/1) ... [2024-11-08 19:06:46,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:06:46,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:06:47,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:06:47,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:06:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 19:06:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 19:06:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 19:06:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 19:06:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 19:06:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 19:06:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 19:06:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 19:06:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 19:06:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:06:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:06:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 19:06:47,055 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 19:06:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:06:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:06:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 19:06:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 19:06:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 19:06:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 19:06:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:06:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:06:47,060 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 19:06:47,261 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:06:47,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:06:47,632 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 19:06:47,633 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:06:47,904 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:06:47,904 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 19:06:47,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:47 BoogieIcfgContainer [2024-11-08 19:06:47,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:06:47,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:06:47,909 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:06:47,912 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:06:47,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:06:46" (1/3) ... [2024-11-08 19:06:47,913 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b004c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:06:47, skipping insertion in model container [2024-11-08 19:06:47,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:46" (2/3) ... [2024-11-08 19:06:47,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b004c8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:06:47, skipping insertion in model container [2024-11-08 19:06:47,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:47" (3/3) ... [2024-11-08 19:06:47,916 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_24-sound_lock_racing.i [2024-11-08 19:06:47,932 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:06:47,932 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-08 19:06:47,933 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 19:06:47,980 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 19:06:48,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 66 transitions, 139 flow [2024-11-08 19:06:48,064 INFO L124 PetriNetUnfolderBase]: 15/87 cut-off events. [2024-11-08 19:06:48,064 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 19:06:48,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 87 events. 15/87 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 245 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2024-11-08 19:06:48,069 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 66 transitions, 139 flow [2024-11-08 19:06:48,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 65 transitions, 137 flow [2024-11-08 19:06:48,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:06:48,091 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@179962c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:06:48,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 19:06:48,106 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:06:48,106 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 19:06:48,106 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:06:48,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:06:48,107 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 19:06:48,108 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 19:06:48,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:48,114 INFO L85 PathProgramCache]: Analyzing trace with hash -2108616428, now seen corresponding path program 1 times [2024-11-08 19:06:48,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:48,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042447524] [2024-11-08 19:06:48,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:48,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:48,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:48,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:48,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042447524] [2024-11-08 19:06:48,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042447524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:48,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:06:48,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:06:48,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81404066] [2024-11-08 19:06:48,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:48,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:06:48,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:48,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:06:48,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:06:48,632 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 66 [2024-11-08 19:06:48,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 65 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:48,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:06:48,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 66 [2024-11-08 19:06:48,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:06:48,926 INFO L124 PetriNetUnfolderBase]: 165/437 cut-off events. [2024-11-08 19:06:48,926 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 19:06:48,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 437 events. 165/437 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2117 event pairs, 22 based on Foata normal form. 81/493 useless extension candidates. Maximal degree in co-relation 740. Up to 290 conditions per place. [2024-11-08 19:06:48,931 INFO L140 encePairwiseOnDemand]: 51/66 looper letters, 48 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2024-11-08 19:06:48,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 78 transitions, 265 flow [2024-11-08 19:06:48,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:06:48,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:06:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2024-11-08 19:06:48,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-11-08 19:06:48,947 INFO L175 Difference]: Start difference. First operand has 58 places, 65 transitions, 137 flow. Second operand 4 states and 183 transitions. [2024-11-08 19:06:48,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 78 transitions, 265 flow [2024-11-08 19:06:48,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 78 transitions, 265 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 19:06:48,955 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 129 flow [2024-11-08 19:06:48,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-11-08 19:06:48,961 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 2 predicate places. [2024-11-08 19:06:48,961 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 129 flow [2024-11-08 19:06:48,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:48,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:06:48,962 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:48,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:06:48,962 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 19:06:48,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash -482949038, now seen corresponding path program 1 times [2024-11-08 19:06:48,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408462803] [2024-11-08 19:06:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:48,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:06:49,018 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:06:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:06:49,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:06:49,078 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:06:49,080 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-08 19:06:49,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 19:06:49,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 19:06:49,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 19:06:49,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-08 19:06:49,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 19:06:49,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-08 19:06:49,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-08 19:06:49,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-08 19:06:49,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 19:06:49,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 19:06:49,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 19:06:49,086 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 19:06:49,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:06:49,086 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 19:06:49,090 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 19:06:49,090 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 19:06:49,134 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 19:06:49,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 99 transitions, 214 flow [2024-11-08 19:06:49,175 INFO L124 PetriNetUnfolderBase]: 28/163 cut-off events. [2024-11-08 19:06:49,175 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 19:06:49,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 163 events. 28/163 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 546 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 100. Up to 8 conditions per place. [2024-11-08 19:06:49,179 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 99 transitions, 214 flow [2024-11-08 19:06:49,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 99 transitions, 214 flow [2024-11-08 19:06:49,186 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:06:49,188 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@179962c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:06:49,188 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-08 19:06:49,194 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:06:49,194 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 19:06:49,194 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:06:49,195 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:06:49,195 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 19:06:49,195 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 19:06:49,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:49,196 INFO L85 PathProgramCache]: Analyzing trace with hash 820175507, now seen corresponding path program 1 times [2024-11-08 19:06:49,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:49,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947919412] [2024-11-08 19:06:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:49,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:49,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:49,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:49,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947919412] [2024-11-08 19:06:49,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947919412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:49,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:06:49,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:06:49,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116984865] [2024-11-08 19:06:49,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:49,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:06:49,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:49,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:06:49,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:06:49,286 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 99 [2024-11-08 19:06:49,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 99 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:49,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:06:49,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 99 [2024-11-08 19:06:49,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:06:50,801 INFO L124 PetriNetUnfolderBase]: 4544/9683 cut-off events. [2024-11-08 19:06:50,802 INFO L125 PetriNetUnfolderBase]: For 88/88 co-relation queries the response was YES. [2024-11-08 19:06:50,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16748 conditions, 9683 events. 4544/9683 cut-off events. For 88/88 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 81836 event pairs, 2024 based on Foata normal form. 1768/10629 useless extension candidates. Maximal degree in co-relation 1334. Up to 6961 conditions per place. [2024-11-08 19:06:50,877 INFO L140 encePairwiseOnDemand]: 78/99 looper letters, 66 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2024-11-08 19:06:50,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 110 transitions, 374 flow [2024-11-08 19:06:50,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:06:50,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:06:50,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2024-11-08 19:06:50,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6641414141414141 [2024-11-08 19:06:50,881 INFO L175 Difference]: Start difference. First operand has 86 places, 99 transitions, 214 flow. Second operand 4 states and 263 transitions. [2024-11-08 19:06:50,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 110 transitions, 374 flow [2024-11-08 19:06:50,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 110 transitions, 374 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 19:06:50,886 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 212 flow [2024-11-08 19:06:50,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-11-08 19:06:50,889 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 5 predicate places. [2024-11-08 19:06:50,889 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 212 flow [2024-11-08 19:06:50,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:50,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:06:50,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:50,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:06:50,890 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 19:06:50,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:50,891 INFO L85 PathProgramCache]: Analyzing trace with hash -2061317216, now seen corresponding path program 1 times [2024-11-08 19:06:50,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:50,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731303206] [2024-11-08 19:06:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:50,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:51,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:51,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:51,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731303206] [2024-11-08 19:06:51,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731303206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:51,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:06:51,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:06:51,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408238746] [2024-11-08 19:06:51,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:51,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:06:51,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:51,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:06:51,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:06:51,034 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 99 [2024-11-08 19:06:51,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:51,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:06:51,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 99 [2024-11-08 19:06:51,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:06:52,775 INFO L124 PetriNetUnfolderBase]: 5272/11253 cut-off events. [2024-11-08 19:06:52,776 INFO L125 PetriNetUnfolderBase]: For 284/616 co-relation queries the response was YES. [2024-11-08 19:06:52,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19739 conditions, 11253 events. 5272/11253 cut-off events. For 284/616 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 99168 event pairs, 1350 based on Foata normal form. 206/10721 useless extension candidates. Maximal degree in co-relation 19637. Up to 5004 conditions per place. [2024-11-08 19:06:52,858 INFO L140 encePairwiseOnDemand]: 90/99 looper letters, 114 selfloop transitions, 12 changer transitions 0/172 dead transitions. [2024-11-08 19:06:52,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 172 transitions, 668 flow [2024-11-08 19:06:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:06:52,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 19:06:52,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 352 transitions. [2024-11-08 19:06:52,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2024-11-08 19:06:52,868 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 212 flow. Second operand 5 states and 352 transitions. [2024-11-08 19:06:52,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 172 transitions, 668 flow [2024-11-08 19:06:52,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 172 transitions, 664 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:06:52,874 INFO L231 Difference]: Finished difference. Result has 98 places, 98 transitions, 304 flow [2024-11-08 19:06:52,874 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=304, PETRI_PLACES=98, PETRI_TRANSITIONS=98} [2024-11-08 19:06:52,875 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 12 predicate places. [2024-11-08 19:06:52,876 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 98 transitions, 304 flow [2024-11-08 19:06:52,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:52,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:06:52,877 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:52,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:06:52,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 19:06:52,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:52,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1851754943, now seen corresponding path program 1 times [2024-11-08 19:06:52,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:52,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359111392] [2024-11-08 19:06:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:52,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:53,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:53,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359111392] [2024-11-08 19:06:53,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359111392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:06:53,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984658303] [2024-11-08 19:06:53,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:53,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:53,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:06:53,019 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:06:53,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:06:53,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:53,118 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:06:53,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:06:53,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:53,209 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:06:53,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984658303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:53,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:06:53,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 19:06:53,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602695303] [2024-11-08 19:06:53,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:53,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:06:53,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:53,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:06:53,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:06:53,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 99 [2024-11-08 19:06:53,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 98 transitions, 304 flow. Second operand has 6 states, 6 states have (on average 42.5) internal successors, (255), 6 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:53,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:06:53,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 99 [2024-11-08 19:06:53,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:06:55,103 INFO L124 PetriNetUnfolderBase]: 6211/12607 cut-off events. [2024-11-08 19:06:55,103 INFO L125 PetriNetUnfolderBase]: For 4114/4124 co-relation queries the response was YES. [2024-11-08 19:06:55,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26087 conditions, 12607 events. 6211/12607 cut-off events. For 4114/4124 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 108275 event pairs, 1374 based on Foata normal form. 160/12097 useless extension candidates. Maximal degree in co-relation 20240. Up to 6781 conditions per place. [2024-11-08 19:06:55,205 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 127 selfloop transitions, 6 changer transitions 0/174 dead transitions. [2024-11-08 19:06:55,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 174 transitions, 804 flow [2024-11-08 19:06:55,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:06:55,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 19:06:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 359 transitions. [2024-11-08 19:06:55,207 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6043771043771043 [2024-11-08 19:06:55,207 INFO L175 Difference]: Start difference. First operand has 98 places, 98 transitions, 304 flow. Second operand 6 states and 359 transitions. [2024-11-08 19:06:55,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 174 transitions, 804 flow [2024-11-08 19:06:55,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 174 transitions, 804 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 19:06:55,232 INFO L231 Difference]: Finished difference. Result has 102 places, 97 transitions, 312 flow [2024-11-08 19:06:55,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=102, PETRI_TRANSITIONS=97} [2024-11-08 19:06:55,233 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 16 predicate places. [2024-11-08 19:06:55,233 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 97 transitions, 312 flow [2024-11-08 19:06:55,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.5) internal successors, (255), 6 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:55,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:06:55,234 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 19:06:55,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:06:55,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:55,435 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 19:06:55,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:55,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1569827885, now seen corresponding path program 1 times [2024-11-08 19:06:55,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:55,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115149502] [2024-11-08 19:06:55,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:55,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:55,499 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:06:55,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:55,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115149502] [2024-11-08 19:06:55,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115149502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:55,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:06:55,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:06:55,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321538318] [2024-11-08 19:06:55,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:55,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:06:55,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:55,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:06:55,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:06:55,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 99 [2024-11-08 19:06:55,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:55,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:06:55,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 99 [2024-11-08 19:06:55,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:06:57,318 INFO L124 PetriNetUnfolderBase]: 6056/12394 cut-off events. [2024-11-08 19:06:57,318 INFO L125 PetriNetUnfolderBase]: For 4808/4815 co-relation queries the response was YES. [2024-11-08 19:06:57,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25901 conditions, 12394 events. 6056/12394 cut-off events. For 4808/4815 co-relation queries the response was YES. Maximal size of possible extension queue 385. Compared 107122 event pairs, 1479 based on Foata normal form. 330/12248 useless extension candidates. Maximal degree in co-relation 20900. Up to 7723 conditions per place. [2024-11-08 19:06:57,395 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 104 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-08 19:06:57,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 150 transitions, 698 flow [2024-11-08 19:06:57,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:06:57,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:06:57,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2024-11-08 19:06:57,397 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6287878787878788 [2024-11-08 19:06:57,397 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 312 flow. Second operand 4 states and 249 transitions. [2024-11-08 19:06:57,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 150 transitions, 698 flow [2024-11-08 19:06:57,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 150 transitions, 688 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 19:06:57,411 INFO L231 Difference]: Finished difference. Result has 101 places, 96 transitions, 314 flow [2024-11-08 19:06:57,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=101, PETRI_TRANSITIONS=96} [2024-11-08 19:06:57,414 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 15 predicate places. [2024-11-08 19:06:57,414 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 314 flow [2024-11-08 19:06:57,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:57,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:06:57,416 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 19:06:57,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:06:57,417 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2024-11-08 19:06:57,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:57,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1156861918, now seen corresponding path program 1 times [2024-11-08 19:06:57,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:57,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193829796] [2024-11-08 19:06:57,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:57,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:06:57,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:06:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:06:57,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:06:57,466 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:06:57,467 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-08 19:06:57,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-08 19:06:57,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-08 19:06:57,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-08 19:06:57,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-08 19:06:57,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-08 19:06:57,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-08 19:06:57,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-08 19:06:57,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-08 19:06:57,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-08 19:06:57,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-08 19:06:57,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-08 19:06:57,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-08 19:06:57,472 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-08 19:06:57,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-08 19:06:57,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-08 19:06:57,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-08 19:06:57,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:06:57,473 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 19:06:57,474 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 19:06:57,474 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 19:06:57,517 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 19:06:57,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 132 transitions, 291 flow [2024-11-08 19:06:57,647 INFO L124 PetriNetUnfolderBase]: 46/264 cut-off events. [2024-11-08 19:06:57,648 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 19:06:57,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 264 events. 46/264 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 997 event pairs, 1 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 178. Up to 16 conditions per place. [2024-11-08 19:06:57,649 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 132 transitions, 291 flow [2024-11-08 19:06:57,652 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 132 transitions, 291 flow [2024-11-08 19:06:57,653 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:06:57,654 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@179962c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:06:57,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 19:06:57,656 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:06:57,656 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-08 19:06:57,656 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:06:57,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:06:57,657 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 19:06:57,657 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 19:06:57,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:57,657 INFO L85 PathProgramCache]: Analyzing trace with hash 430254194, now seen corresponding path program 1 times [2024-11-08 19:06:57,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:57,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605929528] [2024-11-08 19:06:57,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:57,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:06:57,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:06:57,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:06:57,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605929528] [2024-11-08 19:06:57,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605929528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:06:57,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:06:57,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:06:57,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989683122] [2024-11-08 19:06:57,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:06:57,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:06:57,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:06:57,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:06:57,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:06:57,718 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 132 [2024-11-08 19:06:57,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 132 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:06:57,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:06:57,719 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 132 [2024-11-08 19:06:57,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:11,942 INFO L124 PetriNetUnfolderBase]: 83801/151594 cut-off events. [2024-11-08 19:07:11,945 INFO L125 PetriNetUnfolderBase]: For 1943/1943 co-relation queries the response was YES. [2024-11-08 19:07:12,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267486 conditions, 151594 events. 83801/151594 cut-off events. For 1943/1943 co-relation queries the response was YES. Maximal size of possible extension queue 3343. Compared 1600475 event pairs, 52900 based on Foata normal form. 31753/172338 useless extension candidates. Maximal degree in co-relation 17376. Up to 114730 conditions per place. [2024-11-08 19:07:12,886 INFO L140 encePairwiseOnDemand]: 105/132 looper letters, 79 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-11-08 19:07:12,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 137 transitions, 465 flow [2024-11-08 19:07:12,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:07:12,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:07:12,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 338 transitions. [2024-11-08 19:07:12,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6401515151515151 [2024-11-08 19:07:12,892 INFO L175 Difference]: Start difference. First operand has 114 places, 132 transitions, 291 flow. Second operand 4 states and 338 transitions. [2024-11-08 19:07:12,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 137 transitions, 465 flow [2024-11-08 19:07:12,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 137 transitions, 465 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 19:07:12,898 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 277 flow [2024-11-08 19:07:12,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=277, PETRI_PLACES=119, PETRI_TRANSITIONS=114} [2024-11-08 19:07:12,899 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2024-11-08 19:07:12,899 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 277 flow [2024-11-08 19:07:12,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:12,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:12,900 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:12,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:07:12,900 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 19:07:12,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:12,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1159993763, now seen corresponding path program 1 times [2024-11-08 19:07:12,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:12,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573945990] [2024-11-08 19:07:12,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:12,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:12,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:12,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:12,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573945990] [2024-11-08 19:07:12,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573945990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:12,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:07:12,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 19:07:12,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755819657] [2024-11-08 19:07:12,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:12,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:07:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:07:12,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:07:12,982 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 132 [2024-11-08 19:07:12,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:12,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:12,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 132 [2024-11-08 19:07:12,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:07:30,977 INFO L124 PetriNetUnfolderBase]: 107963/190956 cut-off events. [2024-11-08 19:07:30,977 INFO L125 PetriNetUnfolderBase]: For 4939/9458 co-relation queries the response was YES. [2024-11-08 19:07:31,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342242 conditions, 190956 events. 107963/190956 cut-off events. For 4939/9458 co-relation queries the response was YES. Maximal size of possible extension queue 4459. Compared 2033447 event pairs, 35648 based on Foata normal form. 2691/182102 useless extension candidates. Maximal degree in co-relation 342139. Up to 93626 conditions per place. [2024-11-08 19:07:32,012 INFO L140 encePairwiseOnDemand]: 121/132 looper letters, 166 selfloop transitions, 16 changer transitions 0/242 dead transitions. [2024-11-08 19:07:32,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 242 transitions, 961 flow [2024-11-08 19:07:32,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:07:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 19:07:32,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 478 transitions. [2024-11-08 19:07:32,015 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7242424242424242 [2024-11-08 19:07:32,015 INFO L175 Difference]: Start difference. First operand has 119 places, 114 transitions, 277 flow. Second operand 5 states and 478 transitions. [2024-11-08 19:07:32,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 242 transitions, 961 flow [2024-11-08 19:07:32,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 242 transitions, 957 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:07:32,046 INFO L231 Difference]: Finished difference. Result has 126 places, 129 transitions, 403 flow [2024-11-08 19:07:32,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=132, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=403, PETRI_PLACES=126, PETRI_TRANSITIONS=129} [2024-11-08 19:07:32,047 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 12 predicate places. [2024-11-08 19:07:32,048 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 129 transitions, 403 flow [2024-11-08 19:07:32,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:32,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:07:32,048 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 19:07:32,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:07:32,049 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-08 19:07:32,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:07:32,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1814748863, now seen corresponding path program 1 times [2024-11-08 19:07:32,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:07:32,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631190079] [2024-11-08 19:07:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:32,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:07:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:32,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:07:32,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631190079] [2024-11-08 19:07:32,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631190079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:07:32,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035561351] [2024-11-08 19:07:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:07:32,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:07:32,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:07:32,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:07:32,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_711e6265-b001-40e5-9c12-afada0ed9be4/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:07:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:07:32,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:07:32,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:07:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:07:32,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:07:32,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035561351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:07:32,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:07:32,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 19:07:32,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612532085] [2024-11-08 19:07:32,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:07:32,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:07:32,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:07:32,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:07:32,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:07:32,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 132 [2024-11-08 19:07:32,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 129 transitions, 403 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 19:07:32,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:07:32,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 132 [2024-11-08 19:07:32,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand