./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/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_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/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_48eb3375-eaa0-4566-9214-2c64c5a866cf/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 f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:39:25,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:39:25,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:39:25,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:39:25,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:39:25,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:39:25,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:39:25,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:39:25,274 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:39:25,275 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:39:25,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:39:25,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:39:25,277 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:39:25,278 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:39:25,278 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:39:25,279 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:39:25,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:39:25,280 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:39:25,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:39:25,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:39:25,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:39:25,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:39:25,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:39:25,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:39:25,289 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:39:25,294 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:39:25,294 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:39:25,295 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:39:25,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:39:25,295 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:39:25,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:39:25,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:39:25,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:39:25,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:39:25,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:39:25,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:39:25,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:39:25,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:39:25,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:39:25,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:39:25,304 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:39:25,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:39:25,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:39:25,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:39:25,307 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_48eb3375-eaa0-4566-9214-2c64c5a866cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f222d5749b9bb10b4d4c09b2c40e45ee19dec77732a8593ce917652e8ca8a43e [2024-11-08 18:39:25,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:39:25,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:39:25,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:39:25,701 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:39:25,702 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:39:25,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i Unable to find full path for "g++" [2024-11-08 18:39:28,008 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:39:28,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:39:28,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/sv-benchmarks/c/goblint-regression/28-race_reach_51-mutexptr_racefree.i [2024-11-08 18:39:28,291 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/data/82ef8d475/8298bd643ec74896921716f7a76c6ac6/FLAG4f32f00fa [2024-11-08 18:39:28,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/data/82ef8d475/8298bd643ec74896921716f7a76c6ac6 [2024-11-08 18:39:28,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:39:28,581 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:39:28,583 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:39:28,583 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:39:28,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:39:28,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:39:28" (1/1) ... [2024-11-08 18:39:28,595 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79332872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:28, skipping insertion in model container [2024-11-08 18:39:28,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:39:28" (1/1) ... [2024-11-08 18:39:28,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:39:29,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:39:29,152 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:39:29,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:39:29,276 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:39:29,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29 WrapperNode [2024-11-08 18:39:29,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:39:29,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:39:29,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:39:29,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:39:29,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,357 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 142 [2024-11-08 18:39:29,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:39:29,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:39:29,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:39:29,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:39:29,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,385 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,421 INFO L175 MemorySlicer]: Split 20 memory accesses to 5 slices as follows [2, 5, 5, 6, 2]. 30 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 5, 5, 1, 0]. The 3 writes are split as follows [0, 0, 0, 2, 1]. [2024-11-08 18:39:29,425 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:39:29,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:39:29,490 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:39:29,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:39:29,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (1/1) ... [2024-11-08 18:39:29,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:39:29,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:39:29,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:39:29,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:39:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:39:29,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:39:29,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:39:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:39:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:39:29,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:39:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:39:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:39:29,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:39:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:39:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:39:29,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:39:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:39:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:39:29,600 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:39:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:39:29,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:39:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:39:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:39:29,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:39:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:39:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:39:29,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:39:29,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:39:29,604 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 18:39:29,826 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:39:29,829 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:39:30,300 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:39:30,301 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:39:31,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:39:31,057 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 18:39:31,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:39:31 BoogieIcfgContainer [2024-11-08 18:39:31,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:39:31,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:39:31,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:39:31,065 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:39:31,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:39:28" (1/3) ... [2024-11-08 18:39:31,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781e6a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:39:31, skipping insertion in model container [2024-11-08 18:39:31,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:39:29" (2/3) ... [2024-11-08 18:39:31,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781e6a60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:39:31, skipping insertion in model container [2024-11-08 18:39:31,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:39:31" (3/3) ... [2024-11-08 18:39:31,069 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_51-mutexptr_racefree.i [2024-11-08 18:39:31,088 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:39:31,088 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-08 18:39:31,088 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:39:31,154 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 18:39:31,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 66 transitions, 139 flow [2024-11-08 18:39:31,281 INFO L124 PetriNetUnfolderBase]: 15/87 cut-off events. [2024-11-08 18:39:31,281 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:39:31,286 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 18:39:31,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 66 transitions, 139 flow [2024-11-08 18:39:31,294 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 65 transitions, 137 flow [2024-11-08 18:39:31,314 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:39:31,325 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;@24723c0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:39:31,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 18:39:31,340 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:39:31,340 INFO L124 PetriNetUnfolderBase]: 1/13 cut-off events. [2024-11-08 18:39:31,341 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:39:31,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:39:31,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:39:31,343 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 18:39:31,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:31,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1319036361, now seen corresponding path program 1 times [2024-11-08 18:39:31,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:31,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18403977] [2024-11-08 18:39:31,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:31,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:31,947 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 18:39:31,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:39:31,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18403977] [2024-11-08 18:39:31,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18403977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:31,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:31,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:39:31,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501669774] [2024-11-08 18:39:31,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:31,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:39:31,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:39:32,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:39:32,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:39:32,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 66 [2024-11-08 18:39:32,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 65 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 18:39:32,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:39:32,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 66 [2024-11-08 18:39:32,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:39:32,420 INFO L124 PetriNetUnfolderBase]: 180/473 cut-off events. [2024-11-08 18:39:32,421 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:39:32,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 833 conditions, 473 events. 180/473 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2243 event pairs, 22 based on Foata normal form. 83/529 useless extension candidates. Maximal degree in co-relation 803. Up to 315 conditions per place. [2024-11-08 18:39:32,429 INFO L140 encePairwiseOnDemand]: 51/66 looper letters, 51 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2024-11-08 18:39:32,429 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 80 transitions, 275 flow [2024-11-08 18:39:32,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:39:32,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:39:32,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 182 transitions. [2024-11-08 18:39:32,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6893939393939394 [2024-11-08 18:39:32,450 INFO L175 Difference]: Start difference. First operand has 58 places, 65 transitions, 137 flow. Second operand 4 states and 182 transitions. [2024-11-08 18:39:32,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 80 transitions, 275 flow [2024-11-08 18:39:32,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 80 transitions, 275 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:39:32,458 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 129 flow [2024-11-08 18:39:32,460 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 18:39:32,467 INFO L277 CegarLoopForPetriNet]: 58 programPoint places, 2 predicate places. [2024-11-08 18:39:32,467 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 129 flow [2024-11-08 18:39:32,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 18:39:32,470 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:39:32,470 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:39:32,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:39:32,471 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 18:39:32,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:32,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1989715689, now seen corresponding path program 1 times [2024-11-08 18:39:32,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:32,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361504157] [2024-11-08 18:39:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:32,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:39:32,534 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:39:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:39:32,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:39:32,587 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:39:32,589 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2024-11-08 18:39:32,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 18:39:32,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 18:39:32,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 18:39:32,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-08 18:39:32,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 18:39:32,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-08 18:39:32,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-08 18:39:32,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-08 18:39:32,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 18:39:32,595 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 18:39:32,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 18:39:32,596 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 18:39:32,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:39:32,597 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 18:39:32,600 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:39:32,601 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 18:39:32,638 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:39:32,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 99 transitions, 214 flow [2024-11-08 18:39:32,699 INFO L124 PetriNetUnfolderBase]: 28/163 cut-off events. [2024-11-08 18:39:32,699 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:39:32,701 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 10. Compared 564 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 18:39:32,704 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 99 transitions, 214 flow [2024-11-08 18:39:32,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 99 transitions, 214 flow [2024-11-08 18:39:32,709 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:39:32,712 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;@24723c0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:39:32,713 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-11-08 18:39:32,721 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:39:32,722 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 18:39:32,723 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:39:32,724 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:39:32,724 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:39:32,726 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 18:39:32,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:32,726 INFO L85 PathProgramCache]: Analyzing trace with hash -47139000, now seen corresponding path program 1 times [2024-11-08 18:39:32,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:32,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325709184] [2024-11-08 18:39:32,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:32,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:32,946 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 18:39:32,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:39:32,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325709184] [2024-11-08 18:39:32,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325709184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:32,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:32,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:39:32,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175765436] [2024-11-08 18:39:32,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:32,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:39:32,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:39:32,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:39:32,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:39:32,970 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 99 [2024-11-08 18:39:32,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 99 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 18:39:32,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:39:32,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 99 [2024-11-08 18:39:32,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:39:34,812 INFO L124 PetriNetUnfolderBase]: 5353/11320 cut-off events. [2024-11-08 18:39:34,812 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-11-08 18:39:34,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19598 conditions, 11320 events. 5353/11320 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 95392 event pairs, 2388 based on Foata normal form. 1922/12313 useless extension candidates. Maximal degree in co-relation 1447. Up to 8166 conditions per place. [2024-11-08 18:39:34,902 INFO L140 encePairwiseOnDemand]: 78/99 looper letters, 70 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2024-11-08 18:39:34,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 112 transitions, 386 flow [2024-11-08 18:39:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:39:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:39:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 259 transitions. [2024-11-08 18:39:34,909 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6540404040404041 [2024-11-08 18:39:34,909 INFO L175 Difference]: Start difference. First operand has 86 places, 99 transitions, 214 flow. Second operand 4 states and 259 transitions. [2024-11-08 18:39:34,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 112 transitions, 386 flow [2024-11-08 18:39:34,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 112 transitions, 386 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:39:34,916 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 212 flow [2024-11-08 18:39:34,916 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 18:39:34,917 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 5 predicate places. [2024-11-08 18:39:34,917 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 212 flow [2024-11-08 18:39:34,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 18:39:34,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:39:34,918 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:39:34,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:39:34,919 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 18:39:34,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:34,919 INFO L85 PathProgramCache]: Analyzing trace with hash -862165235, now seen corresponding path program 1 times [2024-11-08 18:39:34,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:34,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358428821] [2024-11-08 18:39:34,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:34,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:35,139 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 18:39:35,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:39:35,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358428821] [2024-11-08 18:39:35,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358428821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:35,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:35,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:39:35,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879752527] [2024-11-08 18:39:35,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:35,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:39:35,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:39:35,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:39:35,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:39:35,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 99 [2024-11-08 18:39:35,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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 18:39:35,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:39:35,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 99 [2024-11-08 18:39:35,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:39:37,165 INFO L124 PetriNetUnfolderBase]: 6362/13473 cut-off events. [2024-11-08 18:39:37,166 INFO L125 PetriNetUnfolderBase]: For 318/691 co-relation queries the response was YES. [2024-11-08 18:39:37,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23660 conditions, 13473 events. 6362/13473 cut-off events. For 318/691 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 118821 event pairs, 1719 based on Foata normal form. 232/12853 useless extension candidates. Maximal degree in co-relation 23552. Up to 6013 conditions per place. [2024-11-08 18:39:37,273 INFO L140 encePairwiseOnDemand]: 90/99 looper letters, 123 selfloop transitions, 12 changer transitions 0/178 dead transitions. [2024-11-08 18:39:37,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 178 transitions, 698 flow [2024-11-08 18:39:37,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:39:37,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 18:39:37,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 346 transitions. [2024-11-08 18:39:37,276 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6989898989898989 [2024-11-08 18:39:37,276 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 212 flow. Second operand 5 states and 346 transitions. [2024-11-08 18:39:37,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 178 transitions, 698 flow [2024-11-08 18:39:37,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 178 transitions, 694 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:39:37,283 INFO L231 Difference]: Finished difference. Result has 98 places, 98 transitions, 304 flow [2024-11-08 18:39:37,284 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 18:39:37,285 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 12 predicate places. [2024-11-08 18:39:37,285 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 98 transitions, 304 flow [2024-11-08 18:39:37,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 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 18:39:37,286 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:39:37,286 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-08 18:39:37,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:39:37,286 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 18:39:37,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:37,287 INFO L85 PathProgramCache]: Analyzing trace with hash -737863828, now seen corresponding path program 1 times [2024-11-08 18:39:37,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:37,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510358784] [2024-11-08 18:39:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:37,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:37,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:37,455 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 18:39:37,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:39:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510358784] [2024-11-08 18:39:37,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510358784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:39:37,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946320945] [2024-11-08 18:39:37,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:37,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:39:37,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:39:37,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:39:37,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:39:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:37,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:39:37,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:37,759 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 18:39:37,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:39:37,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946320945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:37,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:39:37,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 18:39:37,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381341137] [2024-11-08 18:39:37,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:37,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:39:37,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:39:37,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:39:37,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:39:37,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 99 [2024-11-08 18:39:37,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 98 transitions, 304 flow. Second operand has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 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 18:39:37,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:39:37,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 99 [2024-11-08 18:39:37,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:39:39,993 INFO L124 PetriNetUnfolderBase]: 7156/14388 cut-off events. [2024-11-08 18:39:39,994 INFO L125 PetriNetUnfolderBase]: For 4470/4480 co-relation queries the response was YES. [2024-11-08 18:39:40,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29627 conditions, 14388 events. 7156/14388 cut-off events. For 4470/4480 co-relation queries the response was YES. Maximal size of possible extension queue 427. Compared 122568 event pairs, 1534 based on Foata normal form. 185/13806 useless extension candidates. Maximal degree in co-relation 22807. Up to 7743 conditions per place. [2024-11-08 18:39:40,202 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 135 selfloop transitions, 6 changer transitions 0/180 dead transitions. [2024-11-08 18:39:40,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 180 transitions, 832 flow [2024-11-08 18:39:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:39:40,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:39:40,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 355 transitions. [2024-11-08 18:39:40,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5976430976430976 [2024-11-08 18:39:40,205 INFO L175 Difference]: Start difference. First operand has 98 places, 98 transitions, 304 flow. Second operand 6 states and 355 transitions. [2024-11-08 18:39:40,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 180 transitions, 832 flow [2024-11-08 18:39:40,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 180 transitions, 832 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:39:40,219 INFO L231 Difference]: Finished difference. Result has 102 places, 97 transitions, 312 flow [2024-11-08 18:39:40,220 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 18:39:40,221 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 16 predicate places. [2024-11-08 18:39:40,221 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 97 transitions, 312 flow [2024-11-08 18:39:40,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.5) internal successors, (243), 6 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 18:39:40,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:39:40,222 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-08 18:39:40,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:39:40,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48eb3375-eaa0-4566-9214-2c64c5a866cf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:39:40,423 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 18:39:40,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:40,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1398941603, now seen corresponding path program 1 times [2024-11-08 18:39:40,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:40,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992071691] [2024-11-08 18:39:40,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:40,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:40,558 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 18:39:40,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:39:40,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992071691] [2024-11-08 18:39:40,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992071691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:40,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:40,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:39:40,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859419412] [2024-11-08 18:39:40,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:40,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:39:40,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:39:40,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:39:40,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:39:40,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 99 [2024-11-08 18:39:40,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 312 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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 18:39:40,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:39:40,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 99 [2024-11-08 18:39:40,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:39:42,581 INFO L124 PetriNetUnfolderBase]: 6976/14165 cut-off events. [2024-11-08 18:39:42,582 INFO L125 PetriNetUnfolderBase]: For 5272/5279 co-relation queries the response was YES. [2024-11-08 18:39:42,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29434 conditions, 14165 events. 6976/14165 cut-off events. For 5272/5279 co-relation queries the response was YES. Maximal size of possible extension queue 426. Compared 121706 event pairs, 1681 based on Foata normal form. 381/14008 useless extension candidates. Maximal degree in co-relation 22650. Up to 8835 conditions per place. [2024-11-08 18:39:42,692 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 110 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-11-08 18:39:42,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 154 transitions, 718 flow [2024-11-08 18:39:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:39:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:39:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 247 transitions. [2024-11-08 18:39:42,694 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6237373737373737 [2024-11-08 18:39:42,694 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 312 flow. Second operand 4 states and 247 transitions. [2024-11-08 18:39:42,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 154 transitions, 718 flow [2024-11-08 18:39:42,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 154 transitions, 708 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 18:39:42,713 INFO L231 Difference]: Finished difference. Result has 101 places, 96 transitions, 314 flow [2024-11-08 18:39:42,713 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 18:39:42,714 INFO L277 CegarLoopForPetriNet]: 86 programPoint places, 15 predicate places. [2024-11-08 18:39:42,714 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 314 flow [2024-11-08 18:39:42,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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 18:39:42,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:39:42,714 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-08 18:39:42,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:39:42,715 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 18:39:42,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:42,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1801072661, now seen corresponding path program 1 times [2024-11-08 18:39:42,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:42,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567494689] [2024-11-08 18:39:42,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:42,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:39:42,755 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:39:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:39:42,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:39:42,778 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:39:42,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2024-11-08 18:39:42,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2024-11-08 18:39:42,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2024-11-08 18:39:42,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2024-11-08 18:39:42,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2024-11-08 18:39:42,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2024-11-08 18:39:42,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2024-11-08 18:39:42,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2024-11-08 18:39:42,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2024-11-08 18:39:42,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2024-11-08 18:39:42,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2024-11-08 18:39:42,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2024-11-08 18:39:42,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2024-11-08 18:39:42,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2024-11-08 18:39:42,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2024-11-08 18:39:42,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2024-11-08 18:39:42,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2024-11-08 18:39:42,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:39:42,782 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-08 18:39:42,783 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:39:42,783 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-08 18:39:42,828 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-08 18:39:42,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 132 transitions, 291 flow [2024-11-08 18:39:42,879 INFO L124 PetriNetUnfolderBase]: 46/264 cut-off events. [2024-11-08 18:39:42,879 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-08 18:39:42,881 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 999 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 18:39:42,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 132 transitions, 291 flow [2024-11-08 18:39:42,886 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 132 transitions, 291 flow [2024-11-08 18:39:42,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:39:42,888 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;@24723c0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:39:42,888 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-08 18:39:42,895 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:39:42,895 INFO L124 PetriNetUnfolderBase]: 1/14 cut-off events. [2024-11-08 18:39:42,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:39:42,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:39:42,896 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:39:42,896 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 18:39:42,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:42,897 INFO L85 PathProgramCache]: Analyzing trace with hash -437060313, now seen corresponding path program 1 times [2024-11-08 18:39:42,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:39:42,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510790035] [2024-11-08 18:39:42,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:42,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:39:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:43,141 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 18:39:43,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:39:43,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510790035] [2024-11-08 18:39:43,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510790035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:39:43,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:39:43,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:39:43,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44219902] [2024-11-08 18:39:43,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:43,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:39:43,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:39:43,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:39:43,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:39:43,164 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 132 [2024-11-08 18:39:43,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 132 transitions, 291 flow. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:39:43,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:39:43,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 132 [2024-11-08 18:39:43,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:40:03,001 INFO L124 PetriNetUnfolderBase]: 106594/190666 cut-off events. [2024-11-08 18:40:03,001 INFO L125 PetriNetUnfolderBase]: For 2075/2075 co-relation queries the response was YES. [2024-11-08 18:40:03,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 337484 conditions, 190666 events. 106594/190666 cut-off events. For 2075/2075 co-relation queries the response was YES. Maximal size of possible extension queue 3954. Compared 2006937 event pairs, 67345 based on Foata normal form. 37199/214482 useless extension candidates. Maximal degree in co-relation 19980. Up to 145469 conditions per place. [2024-11-08 18:40:04,629 INFO L140 encePairwiseOnDemand]: 105/132 looper letters, 84 selfloop transitions, 3 changer transitions 0/139 dead transitions. [2024-11-08 18:40:04,629 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 139 transitions, 479 flow [2024-11-08 18:40:04,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:40:04,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 18:40:04,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-11-08 18:40:04,631 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6268939393939394 [2024-11-08 18:40:04,631 INFO L175 Difference]: Start difference. First operand has 114 places, 132 transitions, 291 flow. Second operand 4 states and 331 transitions. [2024-11-08 18:40:04,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 139 transitions, 479 flow [2024-11-08 18:40:04,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 139 transitions, 479 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:40:04,639 INFO L231 Difference]: Finished difference. Result has 119 places, 114 transitions, 277 flow [2024-11-08 18:40:04,639 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 18:40:04,640 INFO L277 CegarLoopForPetriNet]: 114 programPoint places, 5 predicate places. [2024-11-08 18:40:04,641 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 114 transitions, 277 flow [2024-11-08 18:40:04,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:40:04,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:40:04,642 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:40:04,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:40:04,642 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 18:40:04,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:40:04,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1935821552, now seen corresponding path program 1 times [2024-11-08 18:40:04,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:40:04,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85318386] [2024-11-08 18:40:04,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:40:04,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:40:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:04,798 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 18:40:04,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:40:04,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85318386] [2024-11-08 18:40:04,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85318386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:40:04,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:40:04,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:40:04,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020759589] [2024-11-08 18:40:04,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:40:04,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:40:04,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:40:04,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:40:04,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:40:04,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 132 [2024-11-08 18:40:04,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 114 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 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 18:40:04,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:40:04,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 132 [2024-11-08 18:40:04,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand