./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/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_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/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_e3d98101-2e43-44a2-bb01-2dd32dca5c43/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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:10:14,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:10:14,517 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 19:10:14,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:10:14,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:10:14,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:10:14,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:10:14,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:10:14,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:10:14,577 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:10:14,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:10:14,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:10:14,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:10:14,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:10:14,582 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:10:14,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:10:14,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:10:14,583 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:10:14,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:10:14,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:10:14,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:10:14,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:10:14,586 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:10:14,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:10:14,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:10:14,587 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:10:14,587 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:10:14,588 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:10:14,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:10:14,589 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:10:14,589 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:10:14,589 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:10:14,590 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:10:14,590 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:10:14,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:10:14,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:10:14,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:10:14,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:10:14,592 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:10:14,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:10:14,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:10:14,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:10:14,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:10:14,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:10:14,595 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_e3d98101-2e43-44a2-bb01-2dd32dca5c43/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-08 19:10:14,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:10:14,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:10:14,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:10:14,971 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:10:14,971 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:10:14,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i Unable to find full path for "g++" [2024-11-08 19:10:17,003 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:10:17,266 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:10:17,267 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-08 19:10:17,291 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/data/1e9698d48/524a62747ed14b63b7fdb2babbbc2fcb/FLAGf0dd00132 [2024-11-08 19:10:17,572 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/data/1e9698d48/524a62747ed14b63b7fdb2babbbc2fcb [2024-11-08 19:10:17,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:10:17,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:10:17,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:10:17,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:10:17,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:10:17,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:10:17" (1/1) ... [2024-11-08 19:10:17,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373ce7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:17, skipping insertion in model container [2024-11-08 19:10:17,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:10:17" (1/1) ... [2024-11-08 19:10:17,677 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:10:18,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:10:18,205 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:10:18,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:10:18,311 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:10:18,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18 WrapperNode [2024-11-08 19:10:18,312 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:10:18,313 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:10:18,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:10:18,314 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:10:18,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,363 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 126 [2024-11-08 19:10:18,364 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:10:18,365 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:10:18,365 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:10:18,365 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:10:18,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,409 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-08 19:10:18,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,424 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,438 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:10:18,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:10:18,449 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:10:18,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:10:18,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (1/1) ... [2024-11-08 19:10:18,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:10:18,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:10:18,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:10:18,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:10:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 19:10:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 19:10:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-08 19:10:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-08 19:10:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 19:10:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 19:10:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 19:10:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:10:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:10:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 19:10:18,558 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 19:10:18,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:10:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:10:18,560 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 19:10:18,700 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:10:18,702 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:10:19,015 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 19:10:19,016 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:10:19,256 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:10:19,257 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 19:10:19,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:10:19 BoogieIcfgContainer [2024-11-08 19:10:19,258 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:10:19,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:10:19,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:10:19,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:10:19,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:10:17" (1/3) ... [2024-11-08 19:10:19,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70459a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:10:19, skipping insertion in model container [2024-11-08 19:10:19,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:10:18" (2/3) ... [2024-11-08 19:10:19,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70459a10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:10:19, skipping insertion in model container [2024-11-08 19:10:19,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:10:19" (3/3) ... [2024-11-08 19:10:19,271 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-08 19:10:19,291 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:10:19,291 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-08 19:10:19,292 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 19:10:19,352 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 19:10:19,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 44 transitions, 92 flow [2024-11-08 19:10:19,428 INFO L124 PetriNetUnfolderBase]: 7/43 cut-off events. [2024-11-08 19:10:19,429 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:10:19,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 7/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-08 19:10:19,433 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 44 transitions, 92 flow [2024-11-08 19:10:19,436 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 43 transitions, 89 flow [2024-11-08 19:10:19,447 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:10:19,455 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;@56e52aa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:10:19,457 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-08 19:10:19,473 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 19:10:19,473 INFO L124 PetriNetUnfolderBase]: 3/23 cut-off events. [2024-11-08 19:10:19,473 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:10:19,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:19,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:19,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:19,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:19,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1258483740, now seen corresponding path program 1 times [2024-11-08 19:10:19,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:19,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899408674] [2024-11-08 19:10:19,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:20,233 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 19:10:20,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:20,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899408674] [2024-11-08 19:10:20,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899408674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:20,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:20,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:10:20,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727806935] [2024-11-08 19:10:20,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:20,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:10:20,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:20,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:10:20,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 19:10:20,312 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-11-08 19:10:20,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 43 transitions, 89 flow. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:10:20,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:20,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-11-08 19:10:20,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:20,889 INFO L124 PetriNetUnfolderBase]: 350/723 cut-off events. [2024-11-08 19:10:20,889 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 19:10:20,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1318 conditions, 723 events. 350/723 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3525 event pairs, 27 based on Foata normal form. 61/647 useless extension candidates. Maximal degree in co-relation 1309. Up to 322 conditions per place. [2024-11-08 19:10:20,906 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 78 selfloop transitions, 11 changer transitions 0/104 dead transitions. [2024-11-08 19:10:20,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 104 transitions, 389 flow [2024-11-08 19:10:20,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:10:20,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 19:10:20,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 216 transitions. [2024-11-08 19:10:20,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7012987012987013 [2024-11-08 19:10:20,923 INFO L175 Difference]: Start difference. First operand has 40 places, 43 transitions, 89 flow. Second operand 7 states and 216 transitions. [2024-11-08 19:10:20,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 104 transitions, 389 flow [2024-11-08 19:10:20,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 104 transitions, 388 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:10:20,931 INFO L231 Difference]: Finished difference. Result has 50 places, 52 transitions, 172 flow [2024-11-08 19:10:20,934 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=172, PETRI_PLACES=50, PETRI_TRANSITIONS=52} [2024-11-08 19:10:20,941 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 10 predicate places. [2024-11-08 19:10:20,942 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 52 transitions, 172 flow [2024-11-08 19:10:20,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 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 19:10:20,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:20,942 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:20,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:10:20,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:20,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:20,948 INFO L85 PathProgramCache]: Analyzing trace with hash 358290685, now seen corresponding path program 1 times [2024-11-08 19:10:20,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:20,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734622640] [2024-11-08 19:10:20,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:20,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:21,109 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 19:10:21,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:21,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734622640] [2024-11-08 19:10:21,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734622640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:21,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:21,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:10:21,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463687312] [2024-11-08 19:10:21,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:21,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:10:21,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:21,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:10:21,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:10:21,132 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-11-08 19:10:21,134 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 52 transitions, 172 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 19:10:21,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:21,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-11-08 19:10:21,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:21,472 INFO L124 PetriNetUnfolderBase]: 388/812 cut-off events. [2024-11-08 19:10:21,472 INFO L125 PetriNetUnfolderBase]: For 302/304 co-relation queries the response was YES. [2024-11-08 19:10:21,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1812 conditions, 812 events. 388/812 cut-off events. For 302/304 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4116 event pairs, 123 based on Foata normal form. 34/723 useless extension candidates. Maximal degree in co-relation 1796. Up to 403 conditions per place. [2024-11-08 19:10:21,485 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 55 selfloop transitions, 10 changer transitions 0/80 dead transitions. [2024-11-08 19:10:21,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 80 transitions, 374 flow [2024-11-08 19:10:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:10:21,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:10:21,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-11-08 19:10:21,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761363636363636 [2024-11-08 19:10:21,492 INFO L175 Difference]: Start difference. First operand has 50 places, 52 transitions, 172 flow. Second operand 4 states and 119 transitions. [2024-11-08 19:10:21,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 80 transitions, 374 flow [2024-11-08 19:10:21,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 80 transitions, 368 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 19:10:21,504 INFO L231 Difference]: Finished difference. Result has 55 places, 56 transitions, 236 flow [2024-11-08 19:10:21,504 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=55, PETRI_TRANSITIONS=56} [2024-11-08 19:10:21,505 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 15 predicate places. [2024-11-08 19:10:21,505 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 56 transitions, 236 flow [2024-11-08 19:10:21,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 19:10:21,506 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:21,506 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:21,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 19:10:21,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:21,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:21,507 INFO L85 PathProgramCache]: Analyzing trace with hash -264545427, now seen corresponding path program 1 times [2024-11-08 19:10:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:21,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050024944] [2024-11-08 19:10:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:21,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:21,649 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 19:10:21,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:21,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050024944] [2024-11-08 19:10:21,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050024944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:21,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:21,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:10:21,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753365986] [2024-11-08 19:10:21,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:21,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:10:21,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:21,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:10:21,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:10:21,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 19:10:21,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 56 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 19:10:21,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:21,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 19:10:21,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:22,124 INFO L124 PetriNetUnfolderBase]: 569/1183 cut-off events. [2024-11-08 19:10:22,125 INFO L125 PetriNetUnfolderBase]: For 1034/1042 co-relation queries the response was YES. [2024-11-08 19:10:22,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3022 conditions, 1183 events. 569/1183 cut-off events. For 1034/1042 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6425 event pairs, 111 based on Foata normal form. 37/1107 useless extension candidates. Maximal degree in co-relation 3004. Up to 579 conditions per place. [2024-11-08 19:10:22,136 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 103 selfloop transitions, 22 changer transitions 0/140 dead transitions. [2024-11-08 19:10:22,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 140 transitions, 930 flow [2024-11-08 19:10:22,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:10:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 19:10:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-11-08 19:10:22,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6553030303030303 [2024-11-08 19:10:22,139 INFO L175 Difference]: Start difference. First operand has 55 places, 56 transitions, 236 flow. Second operand 6 states and 173 transitions. [2024-11-08 19:10:22,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 140 transitions, 930 flow [2024-11-08 19:10:22,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 140 transitions, 914 flow, removed 8 selfloop flow, removed 0 redundant places. [2024-11-08 19:10:22,153 INFO L231 Difference]: Finished difference. Result has 65 places, 74 transitions, 426 flow [2024-11-08 19:10:22,154 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=426, PETRI_PLACES=65, PETRI_TRANSITIONS=74} [2024-11-08 19:10:22,154 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2024-11-08 19:10:22,155 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 74 transitions, 426 flow [2024-11-08 19:10:22,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 19:10:22,156 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:22,156 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:22,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 19:10:22,157 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:22,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:22,158 INFO L85 PathProgramCache]: Analyzing trace with hash 389026789, now seen corresponding path program 1 times [2024-11-08 19:10:22,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:22,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019755268] [2024-11-08 19:10:22,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:22,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:22,316 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 19:10:22,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:22,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019755268] [2024-11-08 19:10:22,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019755268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:22,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:22,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:10:22,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005830627] [2024-11-08 19:10:22,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:22,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:10:22,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:22,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:10:22,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:10:22,326 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-08 19:10:22,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 74 transitions, 426 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 19:10:22,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:22,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-08 19:10:22,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:22,638 INFO L124 PetriNetUnfolderBase]: 427/955 cut-off events. [2024-11-08 19:10:22,639 INFO L125 PetriNetUnfolderBase]: For 1356/1388 co-relation queries the response was YES. [2024-11-08 19:10:22,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2877 conditions, 955 events. 427/955 cut-off events. For 1356/1388 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4788 event pairs, 137 based on Foata normal form. 32/933 useless extension candidates. Maximal degree in co-relation 2854. Up to 580 conditions per place. [2024-11-08 19:10:22,649 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 66 selfloop transitions, 11 changer transitions 3/99 dead transitions. [2024-11-08 19:10:22,649 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 99 transitions, 688 flow [2024-11-08 19:10:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:10:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 19:10:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2024-11-08 19:10:22,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-08 19:10:22,651 INFO L175 Difference]: Start difference. First operand has 65 places, 74 transitions, 426 flow. Second operand 5 states and 145 transitions. [2024-11-08 19:10:22,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 99 transitions, 688 flow [2024-11-08 19:10:22,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 99 transitions, 684 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-11-08 19:10:22,667 INFO L231 Difference]: Finished difference. Result has 73 places, 74 transitions, 459 flow [2024-11-08 19:10:22,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=459, PETRI_PLACES=73, PETRI_TRANSITIONS=74} [2024-11-08 19:10:22,669 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 33 predicate places. [2024-11-08 19:10:22,669 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 74 transitions, 459 flow [2024-11-08 19:10:22,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 19:10:22,670 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:22,671 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:22,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 19:10:22,671 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:22,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:22,672 INFO L85 PathProgramCache]: Analyzing trace with hash 844478101, now seen corresponding path program 1 times [2024-11-08 19:10:22,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:22,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634975908] [2024-11-08 19:10:22,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:22,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:22,748 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 19:10:22,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:22,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634975908] [2024-11-08 19:10:22,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634975908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:22,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:22,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 19:10:22,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650607270] [2024-11-08 19:10:22,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:22,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 19:10:22,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:22,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 19:10:22,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 19:10:22,780 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-11-08 19:10:22,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 74 transitions, 459 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 19:10:22,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:22,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-11-08 19:10:22,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:23,062 INFO L124 PetriNetUnfolderBase]: 513/1120 cut-off events. [2024-11-08 19:10:23,063 INFO L125 PetriNetUnfolderBase]: For 2146/2219 co-relation queries the response was YES. [2024-11-08 19:10:23,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3538 conditions, 1120 events. 513/1120 cut-off events. For 2146/2219 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5920 event pairs, 154 based on Foata normal form. 73/1138 useless extension candidates. Maximal degree in co-relation 3509. Up to 707 conditions per place. [2024-11-08 19:10:23,076 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 91 selfloop transitions, 3 changer transitions 1/112 dead transitions. [2024-11-08 19:10:23,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 112 transitions, 837 flow [2024-11-08 19:10:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 19:10:23,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 19:10:23,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-11-08 19:10:23,079 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6988636363636364 [2024-11-08 19:10:23,079 INFO L175 Difference]: Start difference. First operand has 73 places, 74 transitions, 459 flow. Second operand 4 states and 123 transitions. [2024-11-08 19:10:23,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 112 transitions, 837 flow [2024-11-08 19:10:23,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 112 transitions, 835 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-08 19:10:23,092 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 477 flow [2024-11-08 19:10:23,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=477, PETRI_PLACES=78, PETRI_TRANSITIONS=75} [2024-11-08 19:10:23,093 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 38 predicate places. [2024-11-08 19:10:23,095 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 477 flow [2024-11-08 19:10:23,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 19:10:23,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:23,096 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:23,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 19:10:23,097 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:23,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:23,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1940040886, now seen corresponding path program 1 times [2024-11-08 19:10:23,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:23,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5697949] [2024-11-08 19:10:23,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:23,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:23,514 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 19:10:23,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:23,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5697949] [2024-11-08 19:10:23,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5697949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:23,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:23,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 19:10:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957196415] [2024-11-08 19:10:23,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:23,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:10:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:10:23,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:10:23,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-11-08 19:10:23,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 477 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 19:10:23,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:23,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-11-08 19:10:23,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:23,885 INFO L124 PetriNetUnfolderBase]: 489/1097 cut-off events. [2024-11-08 19:10:23,885 INFO L125 PetriNetUnfolderBase]: For 2146/2168 co-relation queries the response was YES. [2024-11-08 19:10:23,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3639 conditions, 1097 events. 489/1097 cut-off events. For 2146/2168 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5804 event pairs, 213 based on Foata normal form. 8/1077 useless extension candidates. Maximal degree in co-relation 3607. Up to 784 conditions per place. [2024-11-08 19:10:23,899 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 63 selfloop transitions, 7 changer transitions 0/88 dead transitions. [2024-11-08 19:10:23,900 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 88 transitions, 687 flow [2024-11-08 19:10:23,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 19:10:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-08 19:10:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 132 transitions. [2024-11-08 19:10:23,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-08 19:10:23,901 INFO L175 Difference]: Start difference. First operand has 78 places, 75 transitions, 477 flow. Second operand 5 states and 132 transitions. [2024-11-08 19:10:23,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 88 transitions, 687 flow [2024-11-08 19:10:23,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 88 transitions, 678 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 19:10:23,915 INFO L231 Difference]: Finished difference. Result has 82 places, 76 transitions, 497 flow [2024-11-08 19:10:23,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=497, PETRI_PLACES=82, PETRI_TRANSITIONS=76} [2024-11-08 19:10:23,918 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 42 predicate places. [2024-11-08 19:10:23,920 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 76 transitions, 497 flow [2024-11-08 19:10:23,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 19:10:23,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:23,921 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:23,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 19:10:23,921 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:23,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:23,922 INFO L85 PathProgramCache]: Analyzing trace with hash -881147472, now seen corresponding path program 2 times [2024-11-08 19:10:23,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:23,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499953079] [2024-11-08 19:10:23,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:23,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:23,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:24,401 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 19:10:24,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:24,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499953079] [2024-11-08 19:10:24,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499953079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:24,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:24,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:10:24,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258740104] [2024-11-08 19:10:24,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:24,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:10:24,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:24,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:10:24,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:10:24,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-11-08 19:10:24,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 76 transitions, 497 flow. Second operand has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 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 19:10:24,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:24,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-11-08 19:10:24,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:24,963 INFO L124 PetriNetUnfolderBase]: 526/1181 cut-off events. [2024-11-08 19:10:24,964 INFO L125 PetriNetUnfolderBase]: For 2720/2742 co-relation queries the response was YES. [2024-11-08 19:10:24,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4074 conditions, 1181 events. 526/1181 cut-off events. For 2720/2742 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 6357 event pairs, 218 based on Foata normal form. 16/1167 useless extension candidates. Maximal degree in co-relation 4040. Up to 807 conditions per place. [2024-11-08 19:10:24,977 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 75 selfloop transitions, 20 changer transitions 1/114 dead transitions. [2024-11-08 19:10:24,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 114 transitions, 966 flow [2024-11-08 19:10:24,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:10:24,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 19:10:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 238 transitions. [2024-11-08 19:10:24,980 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5409090909090909 [2024-11-08 19:10:24,980 INFO L175 Difference]: Start difference. First operand has 82 places, 76 transitions, 497 flow. Second operand 10 states and 238 transitions. [2024-11-08 19:10:24,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 114 transitions, 966 flow [2024-11-08 19:10:24,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 114 transitions, 934 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-11-08 19:10:24,995 INFO L231 Difference]: Finished difference. Result has 93 places, 89 transitions, 683 flow [2024-11-08 19:10:24,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=483, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=683, PETRI_PLACES=93, PETRI_TRANSITIONS=89} [2024-11-08 19:10:24,996 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 53 predicate places. [2024-11-08 19:10:24,997 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 89 transitions, 683 flow [2024-11-08 19:10:24,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 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 19:10:24,997 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:24,998 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:24,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 19:10:24,998 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:24,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1904743290, now seen corresponding path program 3 times [2024-11-08 19:10:24,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:25,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194890667] [2024-11-08 19:10:25,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:25,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:25,435 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 19:10:25,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:25,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194890667] [2024-11-08 19:10:25,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194890667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:25,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:25,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 19:10:25,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398538935] [2024-11-08 19:10:25,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:25,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 19:10:25,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:25,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 19:10:25,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:10:25,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-11-08 19:10:25,442 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 683 flow. Second operand has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 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 19:10:25,442 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:25,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-11-08 19:10:25,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:26,010 INFO L124 PetriNetUnfolderBase]: 526/1204 cut-off events. [2024-11-08 19:10:26,011 INFO L125 PetriNetUnfolderBase]: For 3222/3242 co-relation queries the response was YES. [2024-11-08 19:10:26,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4297 conditions, 1204 events. 526/1204 cut-off events. For 3222/3242 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 6324 event pairs, 187 based on Foata normal form. 14/1185 useless extension candidates. Maximal degree in co-relation 4258. Up to 786 conditions per place. [2024-11-08 19:10:26,026 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 78 selfloop transitions, 23 changer transitions 1/120 dead transitions. [2024-11-08 19:10:26,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 120 transitions, 1120 flow [2024-11-08 19:10:26,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 19:10:26,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-08 19:10:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 200 transitions. [2024-11-08 19:10:26,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-11-08 19:10:26,028 INFO L175 Difference]: Start difference. First operand has 93 places, 89 transitions, 683 flow. Second operand 8 states and 200 transitions. [2024-11-08 19:10:26,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 120 transitions, 1120 flow [2024-11-08 19:10:26,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 120 transitions, 1091 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-08 19:10:26,046 INFO L231 Difference]: Finished difference. Result has 101 places, 95 transitions, 817 flow [2024-11-08 19:10:26,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=817, PETRI_PLACES=101, PETRI_TRANSITIONS=95} [2024-11-08 19:10:26,048 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 61 predicate places. [2024-11-08 19:10:26,052 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 95 transitions, 817 flow [2024-11-08 19:10:26,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 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 19:10:26,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:26,053 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:26,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 19:10:26,054 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:26,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:26,054 INFO L85 PathProgramCache]: Analyzing trace with hash -251663790, now seen corresponding path program 1 times [2024-11-08 19:10:26,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:26,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707806228] [2024-11-08 19:10:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:26,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:26,328 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 19:10:26,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:26,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707806228] [2024-11-08 19:10:26,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707806228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:26,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:26,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:10:26,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675002236] [2024-11-08 19:10:26,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:26,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:10:26,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:26,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:10:26,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:10:26,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 19:10:26,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 95 transitions, 817 flow. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 19:10:26,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:26,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 19:10:26,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:27,488 INFO L124 PetriNetUnfolderBase]: 1195/2520 cut-off events. [2024-11-08 19:10:27,488 INFO L125 PetriNetUnfolderBase]: For 6715/6770 co-relation queries the response was YES. [2024-11-08 19:10:27,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9156 conditions, 2520 events. 1195/2520 cut-off events. For 6715/6770 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 14981 event pairs, 173 based on Foata normal form. 46/2509 useless extension candidates. Maximal degree in co-relation 9113. Up to 477 conditions per place. [2024-11-08 19:10:27,518 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 196 selfloop transitions, 107 changer transitions 0/318 dead transitions. [2024-11-08 19:10:27,518 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 318 transitions, 3152 flow [2024-11-08 19:10:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:10:27,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-08 19:10:27,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 332 transitions. [2024-11-08 19:10:27,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6287878787878788 [2024-11-08 19:10:27,521 INFO L175 Difference]: Start difference. First operand has 101 places, 95 transitions, 817 flow. Second operand 12 states and 332 transitions. [2024-11-08 19:10:27,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 318 transitions, 3152 flow [2024-11-08 19:10:27,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 318 transitions, 3046 flow, removed 18 selfloop flow, removed 4 redundant places. [2024-11-08 19:10:27,556 INFO L231 Difference]: Finished difference. Result has 117 places, 185 transitions, 2100 flow [2024-11-08 19:10:27,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=768, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2100, PETRI_PLACES=117, PETRI_TRANSITIONS=185} [2024-11-08 19:10:27,557 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 77 predicate places. [2024-11-08 19:10:27,558 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 185 transitions, 2100 flow [2024-11-08 19:10:27,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 19:10:27,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:27,559 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:27,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 19:10:27,559 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:27,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:27,560 INFO L85 PathProgramCache]: Analyzing trace with hash 105996848, now seen corresponding path program 2 times [2024-11-08 19:10:27,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:27,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702964947] [2024-11-08 19:10:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:27,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:27,786 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 19:10:27,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:27,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702964947] [2024-11-08 19:10:27,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702964947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:27,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:27,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:10:27,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268966460] [2024-11-08 19:10:27,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:27,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:10:27,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:27,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:10:27,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:10:27,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 19:10:27,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 185 transitions, 2100 flow. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 19:10:27,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:27,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 19:10:27,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:29,296 INFO L124 PetriNetUnfolderBase]: 1664/3577 cut-off events. [2024-11-08 19:10:29,298 INFO L125 PetriNetUnfolderBase]: For 18322/18398 co-relation queries the response was YES. [2024-11-08 19:10:29,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15452 conditions, 3577 events. 1664/3577 cut-off events. For 18322/18398 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 23544 event pairs, 213 based on Foata normal form. 55/3553 useless extension candidates. Maximal degree in co-relation 15401. Up to 676 conditions per place. [2024-11-08 19:10:29,361 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 217 selfloop transitions, 197 changer transitions 0/429 dead transitions. [2024-11-08 19:10:29,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 429 transitions, 5181 flow [2024-11-08 19:10:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 19:10:29,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 19:10:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 391 transitions. [2024-11-08 19:10:29,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5924242424242424 [2024-11-08 19:10:29,364 INFO L175 Difference]: Start difference. First operand has 117 places, 185 transitions, 2100 flow. Second operand 15 states and 391 transitions. [2024-11-08 19:10:29,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 429 transitions, 5181 flow [2024-11-08 19:10:29,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 429 transitions, 5123 flow, removed 29 selfloop flow, removed 0 redundant places. [2024-11-08 19:10:29,465 INFO L231 Difference]: Finished difference. Result has 143 places, 300 transitions, 4257 flow [2024-11-08 19:10:29,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=2052, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4257, PETRI_PLACES=143, PETRI_TRANSITIONS=300} [2024-11-08 19:10:29,470 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 103 predicate places. [2024-11-08 19:10:29,470 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 300 transitions, 4257 flow [2024-11-08 19:10:29,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 19:10:29,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:29,472 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:29,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 19:10:29,472 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:29,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:29,474 INFO L85 PathProgramCache]: Analyzing trace with hash 118754050, now seen corresponding path program 3 times [2024-11-08 19:10:29,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:29,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534187037] [2024-11-08 19:10:29,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:29,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:29,717 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 19:10:29,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:29,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534187037] [2024-11-08 19:10:29,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534187037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:29,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:10:29,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 19:10:29,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165823951] [2024-11-08 19:10:29,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:29,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 19:10:29,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:29,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 19:10:29,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:10:29,734 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 19:10:29,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 300 transitions, 4257 flow. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 19:10:29,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:29,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 19:10:29,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:31,174 INFO L124 PetriNetUnfolderBase]: 1587/3426 cut-off events. [2024-11-08 19:10:31,175 INFO L125 PetriNetUnfolderBase]: For 28423/28482 co-relation queries the response was YES. [2024-11-08 19:10:31,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17203 conditions, 3426 events. 1587/3426 cut-off events. For 28423/28482 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 22352 event pairs, 298 based on Foata normal form. 63/3419 useless extension candidates. Maximal degree in co-relation 17140. Up to 1383 conditions per place. [2024-11-08 19:10:31,220 INFO L140 encePairwiseOnDemand]: 32/44 looper letters, 114 selfloop transitions, 245 changer transitions 2/376 dead transitions. [2024-11-08 19:10:31,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 376 transitions, 5719 flow [2024-11-08 19:10:31,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:10:31,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 19:10:31,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 227 transitions. [2024-11-08 19:10:31,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5159090909090909 [2024-11-08 19:10:31,223 INFO L175 Difference]: Start difference. First operand has 143 places, 300 transitions, 4257 flow. Second operand 10 states and 227 transitions. [2024-11-08 19:10:31,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 376 transitions, 5719 flow [2024-11-08 19:10:31,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 376 transitions, 5306 flow, removed 96 selfloop flow, removed 7 redundant places. [2024-11-08 19:10:31,436 INFO L231 Difference]: Finished difference. Result has 144 places, 324 transitions, 4719 flow [2024-11-08 19:10:31,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=3865, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=220, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=4719, PETRI_PLACES=144, PETRI_TRANSITIONS=324} [2024-11-08 19:10:31,437 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 104 predicate places. [2024-11-08 19:10:31,437 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 324 transitions, 4719 flow [2024-11-08 19:10:31,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 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 19:10:31,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:31,438 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:31,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 19:10:31,439 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:31,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:31,439 INFO L85 PathProgramCache]: Analyzing trace with hash -779049430, now seen corresponding path program 1 times [2024-11-08 19:10:31,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:31,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142672219] [2024-11-08 19:10:31,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:31,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:31,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:31,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142672219] [2024-11-08 19:10:31,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142672219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:10:31,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381076582] [2024-11-08 19:10:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:31,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:10:31,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:10:31,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:10:31,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:10:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:31,891 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 19:10:31,906 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:31,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 19:10:32,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-08 19:10:32,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 19:10:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:32,342 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:10:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:32,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381076582] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:10:32,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:10:32,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 20 [2024-11-08 19:10:32,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161307251] [2024-11-08 19:10:32,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:10:32,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 19:10:32,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:32,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 19:10:32,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-08 19:10:32,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-08 19:10:32,900 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 324 transitions, 4719 flow. Second operand has 21 states, 21 states have (on average 17.428571428571427) internal successors, (366), 21 states have internal predecessors, (366), 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 19:10:32,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:32,900 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-08 19:10:32,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:36,832 INFO L124 PetriNetUnfolderBase]: 3588/7486 cut-off events. [2024-11-08 19:10:36,832 INFO L125 PetriNetUnfolderBase]: For 68826/69324 co-relation queries the response was YES. [2024-11-08 19:10:37,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38901 conditions, 7486 events. 3588/7486 cut-off events. For 68826/69324 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 52624 event pairs, 458 based on Foata normal form. 501/7813 useless extension candidates. Maximal degree in co-relation 38842. Up to 1169 conditions per place. [2024-11-08 19:10:37,108 INFO L140 encePairwiseOnDemand]: 33/44 looper letters, 625 selfloop transitions, 464 changer transitions 1/1127 dead transitions. [2024-11-08 19:10:37,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 1127 transitions, 18015 flow [2024-11-08 19:10:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 19:10:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-08 19:10:37,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 591 transitions. [2024-11-08 19:10:37,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6105371900826446 [2024-11-08 19:10:37,112 INFO L175 Difference]: Start difference. First operand has 144 places, 324 transitions, 4719 flow. Second operand 22 states and 591 transitions. [2024-11-08 19:10:37,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 1127 transitions, 18015 flow [2024-11-08 19:10:37,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 1127 transitions, 17176 flow, removed 171 selfloop flow, removed 5 redundant places. [2024-11-08 19:10:37,442 INFO L231 Difference]: Finished difference. Result has 166 places, 642 transitions, 10490 flow [2024-11-08 19:10:37,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=4476, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=10490, PETRI_PLACES=166, PETRI_TRANSITIONS=642} [2024-11-08 19:10:37,444 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 126 predicate places. [2024-11-08 19:10:37,444 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 642 transitions, 10490 flow [2024-11-08 19:10:37,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 17.428571428571427) internal successors, (366), 21 states have internal predecessors, (366), 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 19:10:37,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:37,445 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:37,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:10:37,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 19:10:37,648 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:37,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:37,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1342176832, now seen corresponding path program 1 times [2024-11-08 19:10:37,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:37,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294749433] [2024-11-08 19:10:37,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:37,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:37,753 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:37,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:37,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294749433] [2024-11-08 19:10:37,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294749433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:10:37,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340542418] [2024-11-08 19:10:37,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:37,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:10:37,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:10:37,757 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:10:37,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 19:10:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:37,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:10:37,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:37,956 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:37,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:10:37,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340542418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:37,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:10:37,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 19:10:37,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452360906] [2024-11-08 19:10:37,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:37,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:10:37,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:37,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:10:37,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 19:10:37,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-11-08 19:10:37,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 642 transitions, 10490 flow. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 19:10:37,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:37,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-11-08 19:10:37,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:40,543 INFO L124 PetriNetUnfolderBase]: 3477/7208 cut-off events. [2024-11-08 19:10:40,543 INFO L125 PetriNetUnfolderBase]: For 72871/73270 co-relation queries the response was YES. [2024-11-08 19:10:40,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38962 conditions, 7208 events. 3477/7208 cut-off events. For 72871/73270 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 49546 event pairs, 750 based on Foata normal form. 416/7274 useless extension candidates. Maximal degree in co-relation 38899. Up to 4062 conditions per place. [2024-11-08 19:10:40,650 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 566 selfloop transitions, 180 changer transitions 60/846 dead transitions. [2024-11-08 19:10:40,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 846 transitions, 14782 flow [2024-11-08 19:10:40,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:10:40,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 19:10:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 174 transitions. [2024-11-08 19:10:40,656 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6590909090909091 [2024-11-08 19:10:40,656 INFO L175 Difference]: Start difference. First operand has 166 places, 642 transitions, 10490 flow. Second operand 6 states and 174 transitions. [2024-11-08 19:10:40,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 846 transitions, 14782 flow [2024-11-08 19:10:41,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 846 transitions, 13849 flow, removed 436 selfloop flow, removed 7 redundant places. [2024-11-08 19:10:41,211 INFO L231 Difference]: Finished difference. Result has 163 places, 641 transitions, 9913 flow [2024-11-08 19:10:41,212 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=9553, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9913, PETRI_PLACES=163, PETRI_TRANSITIONS=641} [2024-11-08 19:10:41,213 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 123 predicate places. [2024-11-08 19:10:41,213 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 641 transitions, 9913 flow [2024-11-08 19:10:41,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 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 19:10:41,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:41,214 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:41,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 19:10:41,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:10:41,419 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:41,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:41,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1342191556, now seen corresponding path program 1 times [2024-11-08 19:10:41,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:41,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638742901] [2024-11-08 19:10:41,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:41,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:41,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:41,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638742901] [2024-11-08 19:10:41,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638742901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:10:41,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155067825] [2024-11-08 19:10:41,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:41,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:10:41,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:10:41,567 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:10:41,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 19:10:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:41,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 19:10:41,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:41,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:10:41,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:41,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155067825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:10:41,875 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:10:41,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-08 19:10:41,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772744692] [2024-11-08 19:10:41,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:10:41,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:10:41,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:41,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:10:41,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:10:41,944 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-11-08 19:10:41,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 641 transitions, 9913 flow. Second operand has 12 states, 12 states have (on average 19.583333333333332) internal successors, (235), 12 states have internal predecessors, (235), 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 19:10:41,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:41,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-11-08 19:10:41,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:10:49,616 INFO L124 PetriNetUnfolderBase]: 11102/22588 cut-off events. [2024-11-08 19:10:49,616 INFO L125 PetriNetUnfolderBase]: For 207528/208910 co-relation queries the response was YES. [2024-11-08 19:10:49,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118187 conditions, 22588 events. 11102/22588 cut-off events. For 207528/208910 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 183828 event pairs, 2170 based on Foata normal form. 1382/23299 useless extension candidates. Maximal degree in co-relation 118127. Up to 5854 conditions per place. [2024-11-08 19:10:50,206 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 1763 selfloop transitions, 437 changer transitions 0/2240 dead transitions. [2024-11-08 19:10:50,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 2240 transitions, 38225 flow [2024-11-08 19:10:50,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 19:10:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 19:10:50,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 314 transitions. [2024-11-08 19:10:50,210 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7136363636363636 [2024-11-08 19:10:50,210 INFO L175 Difference]: Start difference. First operand has 163 places, 641 transitions, 9913 flow. Second operand 10 states and 314 transitions. [2024-11-08 19:10:50,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 2240 transitions, 38225 flow [2024-11-08 19:10:51,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 2240 transitions, 38154 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-08 19:10:51,908 INFO L231 Difference]: Finished difference. Result has 173 places, 1056 transitions, 18582 flow [2024-11-08 19:10:51,908 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=9861, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18582, PETRI_PLACES=173, PETRI_TRANSITIONS=1056} [2024-11-08 19:10:51,909 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 133 predicate places. [2024-11-08 19:10:51,910 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 1056 transitions, 18582 flow [2024-11-08 19:10:51,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.583333333333332) internal successors, (235), 12 states have internal predecessors, (235), 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 19:10:51,910 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:10:51,910 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:10:51,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 19:10:52,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 19:10:52,112 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:10:52,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:10:52,112 INFO L85 PathProgramCache]: Analyzing trace with hash -195484721, now seen corresponding path program 1 times [2024-11-08 19:10:52,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:10:52,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934020898] [2024-11-08 19:10:52,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:52,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:10:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:10:52,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:10:52,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934020898] [2024-11-08 19:10:52,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934020898] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:10:52,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637674719] [2024-11-08 19:10:52,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:10:52,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:10:52,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:10:52,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:10:52,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 19:10:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:10:52,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:10:52,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:10:52,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 19:10:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 19:10:52,912 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:10:52,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637674719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:10:52,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 19:10:52,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 14 [2024-11-08 19:10:52,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386013175] [2024-11-08 19:10:52,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:10:52,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 19:10:52,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:10:52,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 19:10:52,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-08 19:10:52,922 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-08 19:10:52,922 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 1056 transitions, 18582 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 19:10:52,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:10:52,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-08 19:10:52,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:11:05,514 INFO L124 PetriNetUnfolderBase]: 14962/30827 cut-off events. [2024-11-08 19:11:05,515 INFO L125 PetriNetUnfolderBase]: For 320061/321179 co-relation queries the response was YES. [2024-11-08 19:11:05,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169253 conditions, 30827 events. 14962/30827 cut-off events. For 320061/321179 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 269691 event pairs, 1601 based on Foata normal form. 944/30833 useless extension candidates. Maximal degree in co-relation 169190. Up to 15081 conditions per place. [2024-11-08 19:11:05,897 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 1631 selfloop transitions, 59 changer transitions 61/1790 dead transitions. [2024-11-08 19:11:05,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 1790 transitions, 35043 flow [2024-11-08 19:11:05,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 19:11:05,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 19:11:05,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 171 transitions. [2024-11-08 19:11:05,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6477272727272727 [2024-11-08 19:11:05,900 INFO L175 Difference]: Start difference. First operand has 173 places, 1056 transitions, 18582 flow. Second operand 6 states and 171 transitions. [2024-11-08 19:11:05,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 1790 transitions, 35043 flow [2024-11-08 19:11:10,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 1790 transitions, 34929 flow, removed 15 selfloop flow, removed 4 redundant places. [2024-11-08 19:11:10,388 INFO L231 Difference]: Finished difference. Result has 175 places, 1074 transitions, 18896 flow [2024-11-08 19:11:10,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=18409, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1050, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=993, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=18896, PETRI_PLACES=175, PETRI_TRANSITIONS=1074} [2024-11-08 19:11:10,389 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 135 predicate places. [2024-11-08 19:11:10,389 INFO L471 AbstractCegarLoop]: Abstraction has has 175 places, 1074 transitions, 18896 flow [2024-11-08 19:11:10,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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 19:11:10,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:11:10,390 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:10,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 19:11:10,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 19:11:10,591 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:11:10,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:10,591 INFO L85 PathProgramCache]: Analyzing trace with hash -397127679, now seen corresponding path program 2 times [2024-11-08 19:11:10,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:10,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519062884] [2024-11-08 19:11:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:10,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:11:10,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:10,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519062884] [2024-11-08 19:11:10,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519062884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 19:11:10,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890651687] [2024-11-08 19:11:10,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 19:11:10,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:11:10,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:11:10,962 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:11:10,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 19:11:11,091 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 19:11:11,092 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 19:11:11,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 19:11:11,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:11:11,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-08 19:11:11,341 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:11:11,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 19:11:11,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2024-11-08 19:11:11,453 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 19:11:11,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890651687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 19:11:11,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 19:11:11,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 15 [2024-11-08 19:11:11,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182373527] [2024-11-08 19:11:11,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 19:11:11,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 19:11:11,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:11,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 19:11:11,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-08 19:11:11,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-11-08 19:11:11,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 1074 transitions, 18896 flow. Second operand has 15 states, 15 states have (on average 16.2) internal successors, (243), 15 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 19:11:11,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:11:11,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-11-08 19:11:11,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 19:11:34,138 INFO L124 PetriNetUnfolderBase]: 24873/50029 cut-off events. [2024-11-08 19:11:34,139 INFO L125 PetriNetUnfolderBase]: For 601668/601742 co-relation queries the response was YES. [2024-11-08 19:11:34,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308307 conditions, 50029 events. 24873/50029 cut-off events. For 601668/601742 co-relation queries the response was YES. Maximal size of possible extension queue 843. Compared 458299 event pairs, 654 based on Foata normal form. 773/50002 useless extension candidates. Maximal degree in co-relation 308242. Up to 9878 conditions per place. [2024-11-08 19:11:34,902 INFO L140 encePairwiseOnDemand]: 22/44 looper letters, 1424 selfloop transitions, 2419 changer transitions 150/4005 dead transitions. [2024-11-08 19:11:34,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 4005 transitions, 78125 flow [2024-11-08 19:11:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-08 19:11:34,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2024-11-08 19:11:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 1076 transitions. [2024-11-08 19:11:34,907 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4890909090909091 [2024-11-08 19:11:34,907 INFO L175 Difference]: Start difference. First operand has 175 places, 1074 transitions, 18896 flow. Second operand 50 states and 1076 transitions. [2024-11-08 19:11:34,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 4005 transitions, 78125 flow [2024-11-08 19:11:48,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 4005 transitions, 77994 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-11-08 19:11:48,986 INFO L231 Difference]: Finished difference. Result has 263 places, 3266 transitions, 70706 flow [2024-11-08 19:11:48,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=18704, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=564, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=70706, PETRI_PLACES=263, PETRI_TRANSITIONS=3266} [2024-11-08 19:11:48,987 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, 223 predicate places. [2024-11-08 19:11:48,987 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 3266 transitions, 70706 flow [2024-11-08 19:11:48,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.2) internal successors, (243), 15 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 19:11:48,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 19:11:48,988 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:11:49,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 19:11:49,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d98101-2e43-44a2-bb01-2dd32dca5c43/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 19:11:49,189 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-08 19:11:49,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:11:49,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1268107355, now seen corresponding path program 3 times [2024-11-08 19:11:49,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:11:49,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500523359] [2024-11-08 19:11:49,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:11:49,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:11:49,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:11:49,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 19:11:49,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 19:11:49,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500523359] [2024-11-08 19:11:49,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500523359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:11:49,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:11:49,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 19:11:49,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161267445] [2024-11-08 19:11:49,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:11:49,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 19:11:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 19:11:49,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 19:11:49,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 19:11:49,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-11-08 19:11:49,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 3266 transitions, 70706 flow. Second operand has 10 states, 10 states have (on average 15.3) internal successors, (153), 10 states have internal predecessors, (153), 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 19:11:49,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 19:11:49,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-11-08 19:11:49,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand