./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/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_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/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_e65337c5-f114-4395-a898-93abfcc7dcaf/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 a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:34:32,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:34:32,732 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 17:34:32,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:34:32,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:34:32,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:34:32,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:34:32,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:34:32,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:34:32,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:34:32,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:34:32,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:34:32,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:34:32,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:34:32,780 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:34:32,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:34:32,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:34:32,782 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:34:32,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:34:32,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:34:32,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:34:32,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:34:32,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:34:32,788 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:34:32,788 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:34:32,789 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:34:32,789 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:34:32,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:34:32,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:34:32,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:34:32,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:34:32,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:34:32,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:34:32,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:34:32,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:34:32,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:34:32,794 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:34:32,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:34:32,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:34:32,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:34:32,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:34:32,804 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:34:32,804 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:34:32,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:34:32,805 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_e65337c5-f114-4395-a898-93abfcc7dcaf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a812aad62102b8bb20af57f89ce6dbf7fb9ee1fa63f6f8ecf164ccf61d0713cb [2024-11-08 17:34:33,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:34:33,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:34:33,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:34:33,180 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:34:33,181 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:34:33,183 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i Unable to find full path for "g++" [2024-11-08 17:34:35,333 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:34:35,619 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:34:35,620 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/sv-benchmarks/c/goblint-regression/06-symbeq_08-tricky_address3.i [2024-11-08 17:34:35,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/data/57c088d2e/fb9335f08e384e04bb8138c428c769f5/FLAG67440530e [2024-11-08 17:34:35,674 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/data/57c088d2e/fb9335f08e384e04bb8138c428c769f5 [2024-11-08 17:34:35,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:34:35,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:34:35,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:34:35,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:34:35,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:34:35,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:34:35" (1/1) ... [2024-11-08 17:34:35,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45955ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:35, skipping insertion in model container [2024-11-08 17:34:35,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:34:35" (1/1) ... [2024-11-08 17:34:35,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:34:36,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:34:36,328 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:34:36,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:34:36,465 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:34:36,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36 WrapperNode [2024-11-08 17:34:36,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:34:36,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:34:36,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:34:36,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:34:36,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,518 INFO L138 Inliner]: procedures = 265, calls = 74, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2024-11-08 17:34:36,519 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:34:36,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:34:36,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:34:36,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:34:36,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,549 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,568 INFO L175 MemorySlicer]: Split 64 memory accesses to 1 slices as follows [64]. 100 percent of accesses are in the largest equivalence class. The 60 initializations are split as follows [60]. The 2 writes are split as follows [2]. [2024-11-08 17:34:36,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,569 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,578 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:34:36,589 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:34:36,589 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:34:36,589 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:34:36,590 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (1/1) ... [2024-11-08 17:34:36,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:34:36,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:36,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:34:36,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:34:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:34:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:34:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:34:36,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:34:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:34:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 17:34:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 17:34:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:34:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:34:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:34:36,675 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 17:34:36,803 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:34:36,805 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:34:37,207 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:34:37,207 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:34:37,854 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:34:37,855 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:34:37,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:34:37 BoogieIcfgContainer [2024-11-08 17:34:37,856 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:34:37,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:34:37,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:34:37,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:34:37,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:34:35" (1/3) ... [2024-11-08 17:34:37,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5e91fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:34:37, skipping insertion in model container [2024-11-08 17:34:37,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:34:36" (2/3) ... [2024-11-08 17:34:37,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5e91fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:34:37, skipping insertion in model container [2024-11-08 17:34:37,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:34:37" (3/3) ... [2024-11-08 17:34:37,868 INFO L112 eAbstractionObserver]: Analyzing ICFG 06-symbeq_08-tricky_address3.i [2024-11-08 17:34:37,889 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:34:37,890 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-08 17:34:37,890 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:34:37,946 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 17:34:37,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 34 transitions, 72 flow [2024-11-08 17:34:38,034 INFO L124 PetriNetUnfolderBase]: 2/33 cut-off events. [2024-11-08 17:34:38,035 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:34:38,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 33 events. 2/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 10. Up to 2 conditions per place. [2024-11-08 17:34:38,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 34 transitions, 72 flow [2024-11-08 17:34:38,043 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 33 transitions, 69 flow [2024-11-08 17:34:38,061 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:34:38,069 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;@25141008, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:34:38,069 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-08 17:34:38,078 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:34:38,078 INFO L124 PetriNetUnfolderBase]: 1/7 cut-off events. [2024-11-08 17:34:38,079 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:34:38,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:38,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-08 17:34:38,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:38,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:38,087 INFO L85 PathProgramCache]: Analyzing trace with hash 10910408, now seen corresponding path program 1 times [2024-11-08 17:34:38,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:38,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314667812] [2024-11-08 17:34:38,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:38,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:38,542 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 17:34:38,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:38,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314667812] [2024-11-08 17:34:38,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314667812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:38,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:38,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:34:38,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731004167] [2024-11-08 17:34:38,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:38,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:34:38,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:38,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:34:38,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:34:38,651 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:34:38,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 33 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 17:34:38,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:38,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:34:38,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:38,844 INFO L124 PetriNetUnfolderBase]: 44/151 cut-off events. [2024-11-08 17:34:38,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:34:38,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 264 conditions, 151 events. 44/151 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 554 event pairs, 42 based on Foata normal form. 2/136 useless extension candidates. Maximal degree in co-relation 233. Up to 107 conditions per place. [2024-11-08 17:34:38,850 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 21 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2024-11-08 17:34:38,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 121 flow [2024-11-08 17:34:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:34:38,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:34:38,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2024-11-08 17:34:38,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5588235294117647 [2024-11-08 17:34:38,869 INFO L175 Difference]: Start difference. First operand has 35 places, 33 transitions, 69 flow. Second operand 4 states and 76 transitions. [2024-11-08 17:34:38,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 121 flow [2024-11-08 17:34:38,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:34:38,876 INFO L231 Difference]: Finished difference. Result has 39 places, 35 transitions, 94 flow [2024-11-08 17:34:38,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=39, PETRI_TRANSITIONS=35} [2024-11-08 17:34:38,885 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2024-11-08 17:34:38,885 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 35 transitions, 94 flow [2024-11-08 17:34:38,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 17:34:38,886 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:38,886 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-08 17:34:38,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:34:38,887 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:38,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:38,889 INFO L85 PathProgramCache]: Analyzing trace with hash 8272441, now seen corresponding path program 1 times [2024-11-08 17:34:38,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:38,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624960708] [2024-11-08 17:34:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:38,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:39,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:39,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624960708] [2024-11-08 17:34:39,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624960708] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:34:39,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130143687] [2024-11-08 17:34:39,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:39,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:39,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:39,083 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:34:39,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:34:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:39,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 17:34:39,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:34:39,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:39,274 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:34:39,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130143687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:39,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:34:39,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:34:39,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542995077] [2024-11-08 17:34:39,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:39,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:34:39,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:39,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:34:39,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:34:39,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:34:39,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 17:34:39,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:39,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:34:39,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:39,492 INFO L124 PetriNetUnfolderBase]: 44/150 cut-off events. [2024-11-08 17:34:39,492 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 17:34:39,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 274 conditions, 150 events. 44/150 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 550 event pairs, 42 based on Foata normal form. 1/134 useless extension candidates. Maximal degree in co-relation 256. Up to 100 conditions per place. [2024-11-08 17:34:39,496 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 17 selfloop transitions, 6 changer transitions 0/34 dead transitions. [2024-11-08 17:34:39,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 34 transitions, 136 flow [2024-11-08 17:34:39,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:34:39,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:34:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions. [2024-11-08 17:34:39,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47058823529411764 [2024-11-08 17:34:39,500 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 94 flow. Second operand 6 states and 96 transitions. [2024-11-08 17:34:39,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 34 transitions, 136 flow [2024-11-08 17:34:39,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 34 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:34:39,504 INFO L231 Difference]: Finished difference. Result has 42 places, 34 transitions, 100 flow [2024-11-08 17:34:39,505 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=42, PETRI_TRANSITIONS=34} [2024-11-08 17:34:39,505 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 7 predicate places. [2024-11-08 17:34:39,506 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 34 transitions, 100 flow [2024-11-08 17:34:39,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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 17:34:39,507 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:39,508 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-08 17:34:39,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:34:39,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:39,713 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:39,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash 256446017, now seen corresponding path program 1 times [2024-11-08 17:34:39,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:39,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669643133] [2024-11-08 17:34:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:39,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:39,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:39,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:34:39,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:39,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669643133] [2024-11-08 17:34:39,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669643133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:39,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:39,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:34:39,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343280111] [2024-11-08 17:34:39,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:39,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:34:39,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:39,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:34:39,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:34:39,834 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-08 17:34:39,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 34 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 17:34:39,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:39,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-08 17:34:39,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:39,984 INFO L124 PetriNetUnfolderBase]: 43/148 cut-off events. [2024-11-08 17:34:39,984 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-08 17:34:39,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 148 events. 43/148 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 546 event pairs, 42 based on Foata normal form. 2/135 useless extension candidates. Maximal degree in co-relation 250. Up to 103 conditions per place. [2024-11-08 17:34:39,987 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 17 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2024-11-08 17:34:39,987 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 33 transitions, 140 flow [2024-11-08 17:34:39,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:34:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:34:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2024-11-08 17:34:39,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49264705882352944 [2024-11-08 17:34:39,990 INFO L175 Difference]: Start difference. First operand has 42 places, 34 transitions, 100 flow. Second operand 4 states and 67 transitions. [2024-11-08 17:34:39,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 33 transitions, 140 flow [2024-11-08 17:34:39,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 130 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-08 17:34:39,993 INFO L231 Difference]: Finished difference. Result has 41 places, 33 transitions, 102 flow [2024-11-08 17:34:39,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=102, PETRI_PLACES=41, PETRI_TRANSITIONS=33} [2024-11-08 17:34:39,994 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2024-11-08 17:34:39,994 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 33 transitions, 102 flow [2024-11-08 17:34:39,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 17:34:39,995 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:39,995 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:39,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:34:39,997 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:39,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:39,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1948578893, now seen corresponding path program 1 times [2024-11-08 17:34:39,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:40,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438207184] [2024-11-08 17:34:40,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:40,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:40,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:40,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438207184] [2024-11-08 17:34:40,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438207184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:34:40,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850500367] [2024-11-08 17:34:40,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:40,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:40,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:40,139 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:34:40,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:34:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:40,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 17:34:40,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:34:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:40,304 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:34:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:40,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850500367] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:34:40,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:34:40,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 17:34:40,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206199604] [2024-11-08 17:34:40,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:34:40,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:34:40,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:40,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:34:40,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:34:40,394 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-08 17:34:40,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 33 transitions, 102 flow. Second operand has 10 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 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 17:34:40,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:40,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-08 17:34:40,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:40,592 INFO L124 PetriNetUnfolderBase]: 43/153 cut-off events. [2024-11-08 17:34:40,592 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-08 17:34:40,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 153 events. 43/153 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 541 event pairs, 42 based on Foata normal form. 2/140 useless extension candidates. Maximal degree in co-relation 242. Up to 102 conditions per place. [2024-11-08 17:34:40,598 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 20 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2024-11-08 17:34:40,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 181 flow [2024-11-08 17:34:40,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:34:40,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-08 17:34:40,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 106 transitions. [2024-11-08 17:34:40,601 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44537815126050423 [2024-11-08 17:34:40,602 INFO L175 Difference]: Start difference. First operand has 41 places, 33 transitions, 102 flow. Second operand 7 states and 106 transitions. [2024-11-08 17:34:40,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 181 flow [2024-11-08 17:34:40,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 37 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 17:34:40,606 INFO L231 Difference]: Finished difference. Result has 48 places, 36 transitions, 140 flow [2024-11-08 17:34:40,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=140, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2024-11-08 17:34:40,608 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2024-11-08 17:34:40,609 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 140 flow [2024-11-08 17:34:40,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.9) internal successors, (129), 10 states have internal predecessors, (129), 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 17:34:40,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:40,610 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:40,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:34:40,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:40,811 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:40,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:40,812 INFO L85 PathProgramCache]: Analyzing trace with hash 755617967, now seen corresponding path program 2 times [2024-11-08 17:34:40,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:40,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961860368] [2024-11-08 17:34:40,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:40,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:41,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:41,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961860368] [2024-11-08 17:34:41,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961860368] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:34:41,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849886706] [2024-11-08 17:34:41,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:34:41,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:41,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:41,041 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:34:41,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:34:41,140 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 17:34:41,141 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:34:41,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 17:34:41,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:34:42,437 INFO L349 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2024-11-08 17:34:42,438 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 56 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 87 treesize of output 40 [2024-11-08 17:34:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 17:34:42,465 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:34:42,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849886706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:42,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:34:42,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 11 [2024-11-08 17:34:42,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919781028] [2024-11-08 17:34:42,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:42,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:34:42,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:42,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:34:42,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-08 17:34:42,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-08 17:34:42,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 36 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 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 17:34:42,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:42,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-08 17:34:42,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:42,694 INFO L124 PetriNetUnfolderBase]: 57/168 cut-off events. [2024-11-08 17:34:42,694 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-08 17:34:42,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 168 events. 57/168 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 561 event pairs, 18 based on Foata normal form. 8/159 useless extension candidates. Maximal degree in co-relation 286. Up to 74 conditions per place. [2024-11-08 17:34:42,696 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 33 selfloop transitions, 7 changer transitions 3/55 dead transitions. [2024-11-08 17:34:42,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 55 transitions, 264 flow [2024-11-08 17:34:42,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:34:42,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:34:42,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-08 17:34:42,698 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6127450980392157 [2024-11-08 17:34:42,698 INFO L175 Difference]: Start difference. First operand has 48 places, 36 transitions, 140 flow. Second operand 6 states and 125 transitions. [2024-11-08 17:34:42,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 55 transitions, 264 flow [2024-11-08 17:34:42,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 55 transitions, 258 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-08 17:34:42,702 INFO L231 Difference]: Finished difference. Result has 55 places, 39 transitions, 174 flow [2024-11-08 17:34:42,702 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=55, PETRI_TRANSITIONS=39} [2024-11-08 17:34:42,703 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 20 predicate places. [2024-11-08 17:34:42,703 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 174 flow [2024-11-08 17:34:42,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 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 17:34:42,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:42,703 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:42,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 17:34:42,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:42,908 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:42,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:42,908 INFO L85 PathProgramCache]: Analyzing trace with hash 756066628, now seen corresponding path program 1 times [2024-11-08 17:34:42,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:42,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595684350] [2024-11-08 17:34:42,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:42,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:43,007 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 17:34:43,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:43,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595684350] [2024-11-08 17:34:43,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595684350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:43,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:43,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:34:43,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495426181] [2024-11-08 17:34:43,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:43,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:34:43,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:43,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:34:43,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:34:43,017 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-08 17:34:43,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 39 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 17:34:43,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:43,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-08 17:34:43,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:43,145 INFO L124 PetriNetUnfolderBase]: 39/141 cut-off events. [2024-11-08 17:34:43,145 INFO L125 PetriNetUnfolderBase]: For 97/100 co-relation queries the response was YES. [2024-11-08 17:34:43,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 340 conditions, 141 events. 39/141 cut-off events. For 97/100 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 481 event pairs, 8 based on Foata normal form. 7/137 useless extension candidates. Maximal degree in co-relation 303. Up to 62 conditions per place. [2024-11-08 17:34:43,147 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 34 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2024-11-08 17:34:43,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 50 transitions, 286 flow [2024-11-08 17:34:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:34:43,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:34:43,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2024-11-08 17:34:43,150 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6470588235294118 [2024-11-08 17:34:43,150 INFO L175 Difference]: Start difference. First operand has 55 places, 39 transitions, 174 flow. Second operand 4 states and 88 transitions. [2024-11-08 17:34:43,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 50 transitions, 286 flow [2024-11-08 17:34:43,153 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 50 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 17:34:43,155 INFO L231 Difference]: Finished difference. Result has 56 places, 38 transitions, 176 flow [2024-11-08 17:34:43,155 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=56, PETRI_TRANSITIONS=38} [2024-11-08 17:34:43,156 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2024-11-08 17:34:43,157 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 38 transitions, 176 flow [2024-11-08 17:34:43,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 17:34:43,157 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:43,158 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:43,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 17:34:43,158 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:43,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1949320854, now seen corresponding path program 1 times [2024-11-08 17:34:43,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:43,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698067968] [2024-11-08 17:34:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:43,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:43,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:43,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:43,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698067968] [2024-11-08 17:34:43,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698067968] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:34:43,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2163292] [2024-11-08 17:34:43,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:43,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:43,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:43,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:34:43,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:34:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:43,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 17:34:43,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:34:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:43,504 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:34:43,616 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:43,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2163292] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:34:43,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:34:43,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-08 17:34:43,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602232975] [2024-11-08 17:34:43,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:34:43,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 17:34:43,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:43,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 17:34:43,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-08 17:34:43,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-08 17:34:43,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 38 transitions, 176 flow. Second operand has 18 states, 18 states have (on average 12.722222222222221) internal successors, (229), 18 states have internal predecessors, (229), 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 17:34:43,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:43,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-08 17:34:43,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:43,859 INFO L124 PetriNetUnfolderBase]: 33/154 cut-off events. [2024-11-08 17:34:43,860 INFO L125 PetriNetUnfolderBase]: For 151/152 co-relation queries the response was YES. [2024-11-08 17:34:43,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 154 events. 33/154 cut-off events. For 151/152 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 488 event pairs, 32 based on Foata normal form. 4/152 useless extension candidates. Maximal degree in co-relation 378. Up to 86 conditions per place. [2024-11-08 17:34:43,861 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 26 selfloop transitions, 15 changer transitions 0/51 dead transitions. [2024-11-08 17:34:43,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 51 transitions, 368 flow [2024-11-08 17:34:43,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:34:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:34:43,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 208 transitions. [2024-11-08 17:34:43,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40784313725490196 [2024-11-08 17:34:43,864 INFO L175 Difference]: Start difference. First operand has 56 places, 38 transitions, 176 flow. Second operand 15 states and 208 transitions. [2024-11-08 17:34:43,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 51 transitions, 368 flow [2024-11-08 17:34:43,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 51 transitions, 362 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:34:43,868 INFO L231 Difference]: Finished difference. Result has 72 places, 47 transitions, 304 flow [2024-11-08 17:34:43,868 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=304, PETRI_PLACES=72, PETRI_TRANSITIONS=47} [2024-11-08 17:34:43,869 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2024-11-08 17:34:43,870 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 47 transitions, 304 flow [2024-11-08 17:34:43,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.722222222222221) internal successors, (229), 18 states have internal predecessors, (229), 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 17:34:43,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:43,870 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:43,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:34:44,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 17:34:44,075 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:44,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:44,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1726442578, now seen corresponding path program 2 times [2024-11-08 17:34:44,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:44,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000552994] [2024-11-08 17:34:44,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:44,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:44,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:44,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000552994] [2024-11-08 17:34:44,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000552994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:34:44,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590557572] [2024-11-08 17:34:44,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 17:34:44,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:44,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:44,476 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:34:44,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:34:44,573 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 17:34:44,574 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 17:34:44,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 17:34:44,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:34:46,163 INFO L349 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2024-11-08 17:34:46,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 56 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 87 treesize of output 40 [2024-11-08 17:34:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 17:34:46,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:34:46,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590557572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:46,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:34:46,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 19 [2024-11-08 17:34:46,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625301505] [2024-11-08 17:34:46,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:46,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:34:46,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:46,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:34:46,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2024-11-08 17:34:46,211 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-08 17:34:46,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 47 transitions, 304 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 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 17:34:46,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:46,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-08 17:34:46,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:46,431 INFO L124 PetriNetUnfolderBase]: 37/147 cut-off events. [2024-11-08 17:34:46,432 INFO L125 PetriNetUnfolderBase]: For 264/266 co-relation queries the response was YES. [2024-11-08 17:34:46,433 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 147 events. 37/147 cut-off events. For 264/266 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 406 event pairs, 12 based on Foata normal form. 10/154 useless extension candidates. Maximal degree in co-relation 364. Up to 53 conditions per place. [2024-11-08 17:34:46,434 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 39 selfloop transitions, 6 changer transitions 1/58 dead transitions. [2024-11-08 17:34:46,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 58 transitions, 416 flow [2024-11-08 17:34:46,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:34:46,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:34:46,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 120 transitions. [2024-11-08 17:34:46,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5882352941176471 [2024-11-08 17:34:46,436 INFO L175 Difference]: Start difference. First operand has 72 places, 47 transitions, 304 flow. Second operand 6 states and 120 transitions. [2024-11-08 17:34:46,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 58 transitions, 416 flow [2024-11-08 17:34:46,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 58 transitions, 384 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-11-08 17:34:46,441 INFO L231 Difference]: Finished difference. Result has 72 places, 45 transitions, 274 flow [2024-11-08 17:34:46,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=274, PETRI_PLACES=72, PETRI_TRANSITIONS=45} [2024-11-08 17:34:46,443 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 37 predicate places. [2024-11-08 17:34:46,443 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 45 transitions, 274 flow [2024-11-08 17:34:46,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 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 17:34:46,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:46,445 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:46,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 17:34:46,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 17:34:46,651 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:46,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:46,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1740351086, now seen corresponding path program 1 times [2024-11-08 17:34:46,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:46,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322644190] [2024-11-08 17:34:46,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:46,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:46,744 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-08 17:34:46,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322644190] [2024-11-08 17:34:46,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322644190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:46,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:46,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:34:46,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722818510] [2024-11-08 17:34:46,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:46,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:34:46,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:46,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:34:46,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:34:46,754 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-08 17:34:46,754 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 45 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 17:34:46,754 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:46,754 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-08 17:34:46,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:46,859 INFO L124 PetriNetUnfolderBase]: 33/135 cut-off events. [2024-11-08 17:34:46,859 INFO L125 PetriNetUnfolderBase]: For 218/218 co-relation queries the response was YES. [2024-11-08 17:34:46,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 135 events. 33/135 cut-off events. For 218/218 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 357 event pairs, 14 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 359. Up to 57 conditions per place. [2024-11-08 17:34:46,860 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 40 selfloop transitions, 3 changer transitions 0/56 dead transitions. [2024-11-08 17:34:46,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 56 transitions, 404 flow [2024-11-08 17:34:46,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:34:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-08 17:34:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-11-08 17:34:46,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6397058823529411 [2024-11-08 17:34:46,862 INFO L175 Difference]: Start difference. First operand has 72 places, 45 transitions, 274 flow. Second operand 4 states and 87 transitions. [2024-11-08 17:34:46,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 56 transitions, 404 flow [2024-11-08 17:34:46,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 56 transitions, 380 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-08 17:34:46,867 INFO L231 Difference]: Finished difference. Result has 69 places, 44 transitions, 264 flow [2024-11-08 17:34:46,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=264, PETRI_PLACES=69, PETRI_TRANSITIONS=44} [2024-11-08 17:34:46,868 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 34 predicate places. [2024-11-08 17:34:46,868 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 44 transitions, 264 flow [2024-11-08 17:34:46,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 17:34:46,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:46,868 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:46,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 17:34:46,869 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:46,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:46,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1883690806, now seen corresponding path program 1 times [2024-11-08 17:34:46,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:46,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890796193] [2024-11-08 17:34:46,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:46,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:47,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:47,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890796193] [2024-11-08 17:34:47,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890796193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:34:47,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074487730] [2024-11-08 17:34:47,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:47,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:47,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:34:47,308 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:34:47,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:34:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:47,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 17:34:47,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:34:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:47,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:34:47,748 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:34:47,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074487730] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:34:47,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:34:47,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-08 17:34:47,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655516102] [2024-11-08 17:34:47,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:34:47,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-08 17:34:47,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:47,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-08 17:34:47,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-08 17:34:47,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-08 17:34:47,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 44 transitions, 264 flow. Second operand has 23 states, 23 states have (on average 12.782608695652174) internal successors, (294), 23 states have internal predecessors, (294), 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 17:34:47,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:47,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-08 17:34:47,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:48,045 INFO L124 PetriNetUnfolderBase]: 33/155 cut-off events. [2024-11-08 17:34:48,045 INFO L125 PetriNetUnfolderBase]: For 261/261 co-relation queries the response was YES. [2024-11-08 17:34:48,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 155 events. 33/155 cut-off events. For 261/261 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 391 event pairs, 32 based on Foata normal form. 3/152 useless extension candidates. Maximal degree in co-relation 263. Up to 83 conditions per place. [2024-11-08 17:34:48,046 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 28 selfloop transitions, 21 changer transitions 0/57 dead transitions. [2024-11-08 17:34:48,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 57 transitions, 494 flow [2024-11-08 17:34:48,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-08 17:34:48,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-08 17:34:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 282 transitions. [2024-11-08 17:34:48,049 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3949579831932773 [2024-11-08 17:34:48,049 INFO L175 Difference]: Start difference. First operand has 69 places, 44 transitions, 264 flow. Second operand 21 states and 282 transitions. [2024-11-08 17:34:48,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 57 transitions, 494 flow [2024-11-08 17:34:48,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 57 transitions, 488 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-08 17:34:48,055 INFO L231 Difference]: Finished difference. Result has 90 places, 51 transitions, 392 flow [2024-11-08 17:34:48,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=392, PETRI_PLACES=90, PETRI_TRANSITIONS=51} [2024-11-08 17:34:48,056 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 55 predicate places. [2024-11-08 17:34:48,056 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 51 transitions, 392 flow [2024-11-08 17:34:48,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.782608695652174) internal successors, (294), 23 states have internal predecessors, (294), 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 17:34:48,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:48,057 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:48,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 17:34:48,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:34:48,257 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:48,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:48,258 INFO L85 PathProgramCache]: Analyzing trace with hash 363221213, now seen corresponding path program 2 times [2024-11-08 17:34:48,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:48,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101474588] [2024-11-08 17:34:48,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:48,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:49,620 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:34:49,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:49,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101474588] [2024-11-08 17:34:49,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101474588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:49,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:49,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:34:49,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254563945] [2024-11-08 17:34:49,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:49,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:34:49,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:49,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:34:49,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:34:49,638 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 34 [2024-11-08 17:34:49,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 51 transitions, 392 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 17:34:49,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:49,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 34 [2024-11-08 17:34:49,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:34:49,876 INFO L124 PetriNetUnfolderBase]: 36/156 cut-off events. [2024-11-08 17:34:49,876 INFO L125 PetriNetUnfolderBase]: For 367/367 co-relation queries the response was YES. [2024-11-08 17:34:49,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 156 events. 36/156 cut-off events. For 367/367 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 384 event pairs, 8 based on Foata normal form. 14/170 useless extension candidates. Maximal degree in co-relation 257. Up to 57 conditions per place. [2024-11-08 17:34:49,878 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 45 selfloop transitions, 6 changer transitions 4/67 dead transitions. [2024-11-08 17:34:49,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 67 transitions, 546 flow [2024-11-08 17:34:49,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:34:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:34:49,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-08 17:34:49,879 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6127450980392157 [2024-11-08 17:34:49,879 INFO L175 Difference]: Start difference. First operand has 90 places, 51 transitions, 392 flow. Second operand 6 states and 125 transitions. [2024-11-08 17:34:49,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 67 transitions, 546 flow [2024-11-08 17:34:49,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 67 transitions, 520 flow, removed 1 selfloop flow, removed 12 redundant places. [2024-11-08 17:34:49,886 INFO L231 Difference]: Finished difference. Result has 87 places, 54 transitions, 407 flow [2024-11-08 17:34:49,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=366, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=407, PETRI_PLACES=87, PETRI_TRANSITIONS=54} [2024-11-08 17:34:49,888 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 52 predicate places. [2024-11-08 17:34:49,888 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 54 transitions, 407 flow [2024-11-08 17:34:49,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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 17:34:49,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:34:49,889 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:34:49,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:34:49,889 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:34:49,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:34:49,890 INFO L85 PathProgramCache]: Analyzing trace with hash 596638408, now seen corresponding path program 1 times [2024-11-08 17:34:49,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:34:49,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103114041] [2024-11-08 17:34:49,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:34:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:34:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:34:57,761 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:34:57,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:34:57,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103114041] [2024-11-08 17:34:57,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103114041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:34:57,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:34:57,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:34:57,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27282897] [2024-11-08 17:34:57,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:34:57,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:34:57,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:34:57,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:34:57,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:34:57,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-08 17:34:57,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 54 transitions, 407 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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 17:34:57,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:34:57,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-08 17:34:57,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:01,055 INFO L124 PetriNetUnfolderBase]: 71/228 cut-off events. [2024-11-08 17:35:01,055 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2024-11-08 17:35:01,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 746 conditions, 228 events. 71/228 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 720 event pairs, 12 based on Foata normal form. 3/231 useless extension candidates. Maximal degree in co-relation 674. Up to 45 conditions per place. [2024-11-08 17:35:01,058 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 66 selfloop transitions, 21 changer transitions 6/101 dead transitions. [2024-11-08 17:35:01,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 101 transitions, 756 flow [2024-11-08 17:35:01,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 17:35:01,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-08 17:35:01,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 236 transitions. [2024-11-08 17:35:01,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4338235294117647 [2024-11-08 17:35:01,060 INFO L175 Difference]: Start difference. First operand has 87 places, 54 transitions, 407 flow. Second operand 16 states and 236 transitions. [2024-11-08 17:35:01,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 101 transitions, 756 flow [2024-11-08 17:35:01,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 101 transitions, 741 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-08 17:35:01,067 INFO L231 Difference]: Finished difference. Result has 105 places, 69 transitions, 547 flow [2024-11-08 17:35:01,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=547, PETRI_PLACES=105, PETRI_TRANSITIONS=69} [2024-11-08 17:35:01,068 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 70 predicate places. [2024-11-08 17:35:01,069 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 69 transitions, 547 flow [2024-11-08 17:35:01,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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 17:35:01,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:01,069 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:01,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:35:01,070 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:01,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:01,070 INFO L85 PathProgramCache]: Analyzing trace with hash 968914458, now seen corresponding path program 2 times [2024-11-08 17:35:01,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:01,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129070400] [2024-11-08 17:35:01,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:01,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:04,819 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:04,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:04,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129070400] [2024-11-08 17:35:04,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129070400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:04,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:04,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:35:04,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807193731] [2024-11-08 17:35:04,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:04,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:35:04,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:04,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:35:04,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:35:04,860 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-08 17:35:04,860 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 69 transitions, 547 flow. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 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 17:35:04,860 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:04,860 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-08 17:35:04,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:06,568 INFO L124 PetriNetUnfolderBase]: 80/260 cut-off events. [2024-11-08 17:35:06,568 INFO L125 PetriNetUnfolderBase]: For 572/572 co-relation queries the response was YES. [2024-11-08 17:35:06,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 939 conditions, 260 events. 80/260 cut-off events. For 572/572 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 928 event pairs, 16 based on Foata normal form. 3/262 useless extension candidates. Maximal degree in co-relation 850. Up to 63 conditions per place. [2024-11-08 17:35:06,571 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 65 selfloop transitions, 21 changer transitions 5/99 dead transitions. [2024-11-08 17:35:06,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 99 transitions, 862 flow [2024-11-08 17:35:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:35:06,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 17:35:06,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 159 transitions. [2024-11-08 17:35:06,573 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4676470588235294 [2024-11-08 17:35:06,573 INFO L175 Difference]: Start difference. First operand has 105 places, 69 transitions, 547 flow. Second operand 10 states and 159 transitions. [2024-11-08 17:35:06,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 99 transitions, 862 flow [2024-11-08 17:35:06,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 99 transitions, 835 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-08 17:35:06,580 INFO L231 Difference]: Finished difference. Result has 115 places, 74 transitions, 646 flow [2024-11-08 17:35:06,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=646, PETRI_PLACES=115, PETRI_TRANSITIONS=74} [2024-11-08 17:35:06,581 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 80 predicate places. [2024-11-08 17:35:06,581 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 74 transitions, 646 flow [2024-11-08 17:35:06,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 states have internal predecessors, (105), 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 17:35:06,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:06,582 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:06,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 17:35:06,582 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:06,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:06,583 INFO L85 PathProgramCache]: Analyzing trace with hash -655585137, now seen corresponding path program 1 times [2024-11-08 17:35:06,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:06,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517775622] [2024-11-08 17:35:06,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:06,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:06,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:12,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:12,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517775622] [2024-11-08 17:35:12,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517775622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:12,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:12,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:35:12,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809052933] [2024-11-08 17:35:12,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:12,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:35:12,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:12,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:35:12,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:35:12,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-08 17:35:12,395 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 74 transitions, 646 flow. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 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 17:35:12,395 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:12,395 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-08 17:35:12,395 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:14,201 INFO L124 PetriNetUnfolderBase]: 77/267 cut-off events. [2024-11-08 17:35:14,202 INFO L125 PetriNetUnfolderBase]: For 784/786 co-relation queries the response was YES. [2024-11-08 17:35:14,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 267 events. 77/267 cut-off events. For 784/786 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1028 event pairs, 24 based on Foata normal form. 5/272 useless extension candidates. Maximal degree in co-relation 939. Up to 125 conditions per place. [2024-11-08 17:35:14,204 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 59 selfloop transitions, 33 changer transitions 7/110 dead transitions. [2024-11-08 17:35:14,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 110 transitions, 1007 flow [2024-11-08 17:35:14,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 17:35:14,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-08 17:35:14,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 267 transitions. [2024-11-08 17:35:14,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4362745098039216 [2024-11-08 17:35:14,207 INFO L175 Difference]: Start difference. First operand has 115 places, 74 transitions, 646 flow. Second operand 18 states and 267 transitions. [2024-11-08 17:35:14,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 110 transitions, 1007 flow [2024-11-08 17:35:14,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 110 transitions, 984 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-08 17:35:14,215 INFO L231 Difference]: Finished difference. Result has 133 places, 88 transitions, 806 flow [2024-11-08 17:35:14,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=627, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=806, PETRI_PLACES=133, PETRI_TRANSITIONS=88} [2024-11-08 17:35:14,216 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 98 predicate places. [2024-11-08 17:35:14,216 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 88 transitions, 806 flow [2024-11-08 17:35:14,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 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 17:35:14,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:14,217 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:14,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 17:35:14,217 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:14,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:14,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1439435369, now seen corresponding path program 2 times [2024-11-08 17:35:14,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:14,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364618713] [2024-11-08 17:35:14,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:14,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:14,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:18,636 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:18,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:18,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364618713] [2024-11-08 17:35:18,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364618713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:18,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:18,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:18,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048047264] [2024-11-08 17:35:18,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:18,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:18,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:18,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:18,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:18,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-08 17:35:18,673 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 88 transitions, 806 flow. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 17:35:18,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:18,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-08 17:35:18,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:20,284 INFO L124 PetriNetUnfolderBase]: 87/290 cut-off events. [2024-11-08 17:35:20,285 INFO L125 PetriNetUnfolderBase]: For 944/946 co-relation queries the response was YES. [2024-11-08 17:35:20,286 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 290 events. 87/290 cut-off events. For 944/946 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1155 event pairs, 28 based on Foata normal form. 3/293 useless extension candidates. Maximal degree in co-relation 1101. Up to 133 conditions per place. [2024-11-08 17:35:20,288 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 69 selfloop transitions, 31 changer transitions 5/113 dead transitions. [2024-11-08 17:35:20,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 113 transitions, 1150 flow [2024-11-08 17:35:20,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 17:35:20,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-08 17:35:20,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 225 transitions. [2024-11-08 17:35:20,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41360294117647056 [2024-11-08 17:35:20,290 INFO L175 Difference]: Start difference. First operand has 133 places, 88 transitions, 806 flow. Second operand 16 states and 225 transitions. [2024-11-08 17:35:20,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 113 transitions, 1150 flow [2024-11-08 17:35:20,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 113 transitions, 1095 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-11-08 17:35:20,301 INFO L231 Difference]: Finished difference. Result has 147 places, 93 transitions, 921 flow [2024-11-08 17:35:20,302 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=921, PETRI_PLACES=147, PETRI_TRANSITIONS=93} [2024-11-08 17:35:20,302 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 112 predicate places. [2024-11-08 17:35:20,302 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 93 transitions, 921 flow [2024-11-08 17:35:20,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 17:35:20,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:20,303 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:20,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 17:35:20,303 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:20,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:20,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1474290839, now seen corresponding path program 3 times [2024-11-08 17:35:20,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:20,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017100437] [2024-11-08 17:35:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:20,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:24,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:24,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017100437] [2024-11-08 17:35:24,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017100437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:24,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:24,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:24,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279040434] [2024-11-08 17:35:24,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:24,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:24,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:24,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:24,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:24,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-08 17:35:24,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 93 transitions, 921 flow. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 17:35:24,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:24,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-08 17:35:24,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:25,731 INFO L124 PetriNetUnfolderBase]: 90/302 cut-off events. [2024-11-08 17:35:25,732 INFO L125 PetriNetUnfolderBase]: For 1093/1095 co-relation queries the response was YES. [2024-11-08 17:35:25,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321 conditions, 302 events. 90/302 cut-off events. For 1093/1095 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1254 event pairs, 29 based on Foata normal form. 5/307 useless extension candidates. Maximal degree in co-relation 1204. Up to 132 conditions per place. [2024-11-08 17:35:25,735 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 68 selfloop transitions, 37 changer transitions 1/114 dead transitions. [2024-11-08 17:35:25,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 114 transitions, 1229 flow [2024-11-08 17:35:25,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:35:25,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:35:25,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 218 transitions. [2024-11-08 17:35:25,738 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42745098039215684 [2024-11-08 17:35:25,738 INFO L175 Difference]: Start difference. First operand has 147 places, 93 transitions, 921 flow. Second operand 15 states and 218 transitions. [2024-11-08 17:35:25,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 114 transitions, 1229 flow [2024-11-08 17:35:25,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 114 transitions, 1179 flow, removed 11 selfloop flow, removed 6 redundant places. [2024-11-08 17:35:25,752 INFO L231 Difference]: Finished difference. Result has 157 places, 97 transitions, 1022 flow [2024-11-08 17:35:25,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1022, PETRI_PLACES=157, PETRI_TRANSITIONS=97} [2024-11-08 17:35:25,753 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 122 predicate places. [2024-11-08 17:35:25,754 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 97 transitions, 1022 flow [2024-11-08 17:35:25,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 17:35:25,754 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:25,754 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:25,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 17:35:25,757 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:25,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:25,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1438253339, now seen corresponding path program 4 times [2024-11-08 17:35:25,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:25,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230027425] [2024-11-08 17:35:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:25,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:29,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:29,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230027425] [2024-11-08 17:35:29,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230027425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:29,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:29,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:29,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269807150] [2024-11-08 17:35:29,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:29,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:29,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:29,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:29,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:29,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-08 17:35:29,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 97 transitions, 1022 flow. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 17:35:29,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:29,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-08 17:35:29,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:30,724 INFO L124 PetriNetUnfolderBase]: 95/317 cut-off events. [2024-11-08 17:35:30,724 INFO L125 PetriNetUnfolderBase]: For 1291/1293 co-relation queries the response was YES. [2024-11-08 17:35:30,726 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1428 conditions, 317 events. 95/317 cut-off events. For 1291/1293 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1366 event pairs, 24 based on Foata normal form. 3/320 useless extension candidates. Maximal degree in co-relation 1304. Up to 135 conditions per place. [2024-11-08 17:35:30,728 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 78 selfloop transitions, 39 changer transitions 1/126 dead transitions. [2024-11-08 17:35:30,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 126 transitions, 1419 flow [2024-11-08 17:35:30,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:35:30,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:35:30,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 217 transitions. [2024-11-08 17:35:30,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42549019607843136 [2024-11-08 17:35:30,730 INFO L175 Difference]: Start difference. First operand has 157 places, 97 transitions, 1022 flow. Second operand 15 states and 217 transitions. [2024-11-08 17:35:30,730 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 126 transitions, 1419 flow [2024-11-08 17:35:30,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 126 transitions, 1339 flow, removed 16 selfloop flow, removed 10 redundant places. [2024-11-08 17:35:30,745 INFO L231 Difference]: Finished difference. Result has 165 places, 105 transitions, 1112 flow [2024-11-08 17:35:30,745 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1112, PETRI_PLACES=165, PETRI_TRANSITIONS=105} [2024-11-08 17:35:30,745 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 130 predicate places. [2024-11-08 17:35:30,746 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 105 transitions, 1112 flow [2024-11-08 17:35:30,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 17:35:30,746 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:30,746 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:30,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 17:35:30,747 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:30,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:30,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1410790739, now seen corresponding path program 5 times [2024-11-08 17:35:30,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:30,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272069508] [2024-11-08 17:35:30,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:30,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:35,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:35,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272069508] [2024-11-08 17:35:35,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272069508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:35,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:35,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:35:35,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724593194] [2024-11-08 17:35:35,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:35,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:35:35,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:35,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:35:35,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:35:35,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-08 17:35:35,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 105 transitions, 1112 flow. Second operand has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 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 17:35:35,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:35,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-08 17:35:35,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:38,333 INFO L124 PetriNetUnfolderBase]: 86/313 cut-off events. [2024-11-08 17:35:38,334 INFO L125 PetriNetUnfolderBase]: For 1445/1449 co-relation queries the response was YES. [2024-11-08 17:35:38,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1475 conditions, 313 events. 86/313 cut-off events. For 1445/1449 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1401 event pairs, 36 based on Foata normal form. 7/319 useless extension candidates. Maximal degree in co-relation 1358. Up to 152 conditions per place. [2024-11-08 17:35:38,338 INFO L140 encePairwiseOnDemand]: 22/34 looper letters, 71 selfloop transitions, 34 changer transitions 2/125 dead transitions. [2024-11-08 17:35:38,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 125 transitions, 1427 flow [2024-11-08 17:35:38,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 17:35:38,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-08 17:35:38,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 238 transitions. [2024-11-08 17:35:38,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-11-08 17:35:38,340 INFO L175 Difference]: Start difference. First operand has 165 places, 105 transitions, 1112 flow. Second operand 16 states and 238 transitions. [2024-11-08 17:35:38,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 125 transitions, 1427 flow [2024-11-08 17:35:38,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 125 transitions, 1369 flow, removed 4 selfloop flow, removed 8 redundant places. [2024-11-08 17:35:38,356 INFO L231 Difference]: Finished difference. Result has 176 places, 109 transitions, 1189 flow [2024-11-08 17:35:38,357 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1189, PETRI_PLACES=176, PETRI_TRANSITIONS=109} [2024-11-08 17:35:38,357 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 141 predicate places. [2024-11-08 17:35:38,357 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 109 transitions, 1189 flow [2024-11-08 17:35:38,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.363636363636363) internal successors, (136), 11 states have internal predecessors, (136), 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 17:35:38,358 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:38,358 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:38,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 17:35:38,358 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:38,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:38,359 INFO L85 PathProgramCache]: Analyzing trace with hash -915144772, now seen corresponding path program 3 times [2024-11-08 17:35:38,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:38,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618154770] [2024-11-08 17:35:38,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:38,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:43,070 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:43,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:43,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618154770] [2024-11-08 17:35:43,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618154770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:43,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:43,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:35:43,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081201568] [2024-11-08 17:35:43,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:43,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:35:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:43,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:35:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:35:43,138 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-08 17:35:43,139 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 109 transitions, 1189 flow. Second operand has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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 17:35:43,139 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:43,139 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-08 17:35:43,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:44,779 INFO L124 PetriNetUnfolderBase]: 104/355 cut-off events. [2024-11-08 17:35:44,779 INFO L125 PetriNetUnfolderBase]: For 1504/1506 co-relation queries the response was YES. [2024-11-08 17:35:44,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 355 events. 104/355 cut-off events. For 1504/1506 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1642 event pairs, 41 based on Foata normal form. 5/360 useless extension candidates. Maximal degree in co-relation 1520. Up to 156 conditions per place. [2024-11-08 17:35:44,784 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 89 selfloop transitions, 34 changer transitions 1/132 dead transitions. [2024-11-08 17:35:44,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 132 transitions, 1538 flow [2024-11-08 17:35:44,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:35:44,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:35:44,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 216 transitions. [2024-11-08 17:35:44,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4235294117647059 [2024-11-08 17:35:44,786 INFO L175 Difference]: Start difference. First operand has 176 places, 109 transitions, 1189 flow. Second operand 15 states and 216 transitions. [2024-11-08 17:35:44,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 132 transitions, 1538 flow [2024-11-08 17:35:44,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 132 transitions, 1490 flow, removed 5 selfloop flow, removed 5 redundant places. [2024-11-08 17:35:44,803 INFO L231 Difference]: Finished difference. Result has 188 places, 113 transitions, 1281 flow [2024-11-08 17:35:44,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1147, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1281, PETRI_PLACES=188, PETRI_TRANSITIONS=113} [2024-11-08 17:35:44,804 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 153 predicate places. [2024-11-08 17:35:44,804 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 113 transitions, 1281 flow [2024-11-08 17:35:44,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.363636363636363) internal successors, (125), 11 states have internal predecessors, (125), 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 17:35:44,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:44,805 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:44,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 17:35:44,805 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:44,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:44,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2116916060, now seen corresponding path program 4 times [2024-11-08 17:35:44,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:44,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031165977] [2024-11-08 17:35:44,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:44,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:46,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:46,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031165977] [2024-11-08 17:35:46,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031165977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:46,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:46,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:46,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718147834] [2024-11-08 17:35:46,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:46,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:46,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:46,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:46,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:46,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-08 17:35:46,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 113 transitions, 1281 flow. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 17:35:46,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:46,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-08 17:35:46,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:47,867 INFO L124 PetriNetUnfolderBase]: 106/364 cut-off events. [2024-11-08 17:35:47,868 INFO L125 PetriNetUnfolderBase]: For 1810/1812 co-relation queries the response was YES. [2024-11-08 17:35:47,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1740 conditions, 364 events. 106/364 cut-off events. For 1810/1812 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1735 event pairs, 32 based on Foata normal form. 5/369 useless extension candidates. Maximal degree in co-relation 1598. Up to 146 conditions per place. [2024-11-08 17:35:47,871 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 93 selfloop transitions, 44 changer transitions 1/146 dead transitions. [2024-11-08 17:35:47,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 146 transitions, 1734 flow [2024-11-08 17:35:47,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 17:35:47,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-08 17:35:47,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 240 transitions. [2024-11-08 17:35:47,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41522491349480967 [2024-11-08 17:35:47,877 INFO L175 Difference]: Start difference. First operand has 188 places, 113 transitions, 1281 flow. Second operand 17 states and 240 transitions. [2024-11-08 17:35:47,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 146 transitions, 1734 flow [2024-11-08 17:35:47,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 146 transitions, 1647 flow, removed 11 selfloop flow, removed 10 redundant places. [2024-11-08 17:35:47,899 INFO L231 Difference]: Finished difference. Result has 199 places, 124 transitions, 1390 flow [2024-11-08 17:35:47,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1390, PETRI_PLACES=199, PETRI_TRANSITIONS=124} [2024-11-08 17:35:47,900 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 164 predicate places. [2024-11-08 17:35:47,900 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 124 transitions, 1390 flow [2024-11-08 17:35:47,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 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 17:35:47,900 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:47,900 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:47,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 17:35:47,901 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:47,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:47,901 INFO L85 PathProgramCache]: Analyzing trace with hash -28422496, now seen corresponding path program 1 times [2024-11-08 17:35:47,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:47,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236619792] [2024-11-08 17:35:47,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:47,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:52,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:52,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236619792] [2024-11-08 17:35:52,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236619792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:52,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:52,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:35:52,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759443208] [2024-11-08 17:35:52,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:52,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:35:52,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:52,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:35:52,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:35:52,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:35:52,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 124 transitions, 1390 flow. Second operand has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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 17:35:52,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:52,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:35:52,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:35:54,850 INFO L124 PetriNetUnfolderBase]: 98/391 cut-off events. [2024-11-08 17:35:54,850 INFO L125 PetriNetUnfolderBase]: For 2370/2372 co-relation queries the response was YES. [2024-11-08 17:35:54,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1938 conditions, 391 events. 98/391 cut-off events. For 2370/2372 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2118 event pairs, 37 based on Foata normal form. 6/395 useless extension candidates. Maximal degree in co-relation 1813. Up to 198 conditions per place. [2024-11-08 17:35:54,855 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 75 selfloop transitions, 20 changer transitions 23/145 dead transitions. [2024-11-08 17:35:54,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 145 transitions, 1818 flow [2024-11-08 17:35:54,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:35:54,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 17:35:54,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 168 transitions. [2024-11-08 17:35:54,856 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49411764705882355 [2024-11-08 17:35:54,856 INFO L175 Difference]: Start difference. First operand has 199 places, 124 transitions, 1390 flow. Second operand 10 states and 168 transitions. [2024-11-08 17:35:54,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 145 transitions, 1818 flow [2024-11-08 17:35:54,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 145 transitions, 1725 flow, removed 6 selfloop flow, removed 10 redundant places. [2024-11-08 17:35:54,878 INFO L231 Difference]: Finished difference. Result has 200 places, 117 transitions, 1270 flow [2024-11-08 17:35:54,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1270, PETRI_PLACES=200, PETRI_TRANSITIONS=117} [2024-11-08 17:35:54,879 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 165 predicate places. [2024-11-08 17:35:54,879 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 117 transitions, 1270 flow [2024-11-08 17:35:54,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.75) internal successors, (110), 8 states have internal predecessors, (110), 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 17:35:54,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:35:54,880 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:35:54,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 17:35:54,880 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:35:54,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:35:54,881 INFO L85 PathProgramCache]: Analyzing trace with hash -42923752, now seen corresponding path program 1 times [2024-11-08 17:35:54,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:35:54,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539565714] [2024-11-08 17:35:54,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:35:54,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:35:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:35:59,323 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:35:59,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:35:59,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539565714] [2024-11-08 17:35:59,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539565714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:35:59,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:35:59,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:35:59,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655912759] [2024-11-08 17:35:59,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:35:59,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:35:59,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:35:59,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:35:59,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:35:59,387 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:35:59,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 117 transitions, 1270 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:35:59,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:35:59,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:35:59,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:01,123 INFO L124 PetriNetUnfolderBase]: 76/323 cut-off events. [2024-11-08 17:36:01,123 INFO L125 PetriNetUnfolderBase]: For 1850/1852 co-relation queries the response was YES. [2024-11-08 17:36:01,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 323 events. 76/323 cut-off events. For 1850/1852 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1618 event pairs, 34 based on Foata normal form. 5/326 useless extension candidates. Maximal degree in co-relation 1444. Up to 187 conditions per place. [2024-11-08 17:36:01,127 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 65 selfloop transitions, 23 changer transitions 13/127 dead transitions. [2024-11-08 17:36:01,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 127 transitions, 1493 flow [2024-11-08 17:36:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:36:01,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 17:36:01,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 205 transitions. [2024-11-08 17:36:01,128 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4638009049773756 [2024-11-08 17:36:01,128 INFO L175 Difference]: Start difference. First operand has 200 places, 117 transitions, 1270 flow. Second operand 13 states and 205 transitions. [2024-11-08 17:36:01,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 127 transitions, 1493 flow [2024-11-08 17:36:01,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 127 transitions, 1428 flow, removed 6 selfloop flow, removed 9 redundant places. [2024-11-08 17:36:01,143 INFO L231 Difference]: Finished difference. Result has 198 places, 109 transitions, 1158 flow [2024-11-08 17:36:01,144 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1197, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1158, PETRI_PLACES=198, PETRI_TRANSITIONS=109} [2024-11-08 17:36:01,144 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 163 predicate places. [2024-11-08 17:36:01,144 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 109 transitions, 1158 flow [2024-11-08 17:36:01,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:01,145 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:01,145 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:01,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 17:36:01,145 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:01,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:01,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1634935680, now seen corresponding path program 1 times [2024-11-08 17:36:01,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:01,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563633795] [2024-11-08 17:36:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:01,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:05,218 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:05,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:05,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563633795] [2024-11-08 17:36:05,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563633795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:05,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:05,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:36:05,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317000421] [2024-11-08 17:36:05,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:05,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:36:05,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:36:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:36:05,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 34 [2024-11-08 17:36:05,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 109 transitions, 1158 flow. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 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 17:36:05,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:05,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 34 [2024-11-08 17:36:05,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:06,028 INFO L124 PetriNetUnfolderBase]: 87/319 cut-off events. [2024-11-08 17:36:06,028 INFO L125 PetriNetUnfolderBase]: For 1330/1330 co-relation queries the response was YES. [2024-11-08 17:36:06,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1516 conditions, 319 events. 87/319 cut-off events. For 1330/1330 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1489 event pairs, 3 based on Foata normal form. 2/321 useless extension candidates. Maximal degree in co-relation 1391. Up to 78 conditions per place. [2024-11-08 17:36:06,030 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 97 selfloop transitions, 26 changer transitions 0/131 dead transitions. [2024-11-08 17:36:06,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 131 transitions, 1546 flow [2024-11-08 17:36:06,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:36:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-08 17:36:06,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 161 transitions. [2024-11-08 17:36:06,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4304812834224599 [2024-11-08 17:36:06,032 INFO L175 Difference]: Start difference. First operand has 198 places, 109 transitions, 1158 flow. Second operand 11 states and 161 transitions. [2024-11-08 17:36:06,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 131 transitions, 1546 flow [2024-11-08 17:36:06,040 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 131 transitions, 1471 flow, removed 2 selfloop flow, removed 18 redundant places. [2024-11-08 17:36:06,041 INFO L231 Difference]: Finished difference. Result has 180 places, 108 transitions, 1123 flow [2024-11-08 17:36:06,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1071, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1123, PETRI_PLACES=180, PETRI_TRANSITIONS=108} [2024-11-08 17:36:06,042 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 145 predicate places. [2024-11-08 17:36:06,042 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 108 transitions, 1123 flow [2024-11-08 17:36:06,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 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 17:36:06,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:06,042 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:06,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 17:36:06,042 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:06,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:06,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1636180192, now seen corresponding path program 2 times [2024-11-08 17:36:06,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:06,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647104830] [2024-11-08 17:36:06,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:06,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:10,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:10,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647104830] [2024-11-08 17:36:10,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647104830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:10,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:10,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:36:10,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272334560] [2024-11-08 17:36:10,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:10,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:36:10,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:10,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:36:10,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:36:10,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:36:10,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 108 transitions, 1123 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:10,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:10,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:36:10,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:11,875 INFO L124 PetriNetUnfolderBase]: 68/295 cut-off events. [2024-11-08 17:36:11,875 INFO L125 PetriNetUnfolderBase]: For 1339/1339 co-relation queries the response was YES. [2024-11-08 17:36:11,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1399 conditions, 295 events. 68/295 cut-off events. For 1339/1339 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1417 event pairs, 23 based on Foata normal form. 3/294 useless extension candidates. Maximal degree in co-relation 1255. Up to 159 conditions per place. [2024-11-08 17:36:11,879 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 66 selfloop transitions, 25 changer transitions 7/123 dead transitions. [2024-11-08 17:36:11,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 123 transitions, 1377 flow [2024-11-08 17:36:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:36:11,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 17:36:11,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 203 transitions. [2024-11-08 17:36:11,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4592760180995475 [2024-11-08 17:36:11,883 INFO L175 Difference]: Start difference. First operand has 180 places, 108 transitions, 1123 flow. Second operand 13 states and 203 transitions. [2024-11-08 17:36:11,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 123 transitions, 1377 flow [2024-11-08 17:36:11,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 123 transitions, 1331 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-11-08 17:36:11,897 INFO L231 Difference]: Finished difference. Result has 184 places, 104 transitions, 1100 flow [2024-11-08 17:36:11,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1077, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1100, PETRI_PLACES=184, PETRI_TRANSITIONS=104} [2024-11-08 17:36:11,898 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 149 predicate places. [2024-11-08 17:36:11,898 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 104 transitions, 1100 flow [2024-11-08 17:36:11,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:11,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:11,898 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:11,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 17:36:11,899 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:11,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:11,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1672823122, now seen corresponding path program 3 times [2024-11-08 17:36:11,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:11,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571172570] [2024-11-08 17:36:11,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:11,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:16,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:16,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571172570] [2024-11-08 17:36:16,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571172570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:16,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:16,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:36:16,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585791464] [2024-11-08 17:36:16,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:16,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:36:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:16,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:36:16,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:36:17,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:36:17,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 104 transitions, 1100 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:17,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:17,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:36:17,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:18,975 INFO L124 PetriNetUnfolderBase]: 62/277 cut-off events. [2024-11-08 17:36:18,975 INFO L125 PetriNetUnfolderBase]: For 1360/1360 co-relation queries the response was YES. [2024-11-08 17:36:18,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1309 conditions, 277 events. 62/277 cut-off events. For 1360/1360 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1265 event pairs, 23 based on Foata normal form. 6/282 useless extension candidates. Maximal degree in co-relation 1242. Up to 143 conditions per place. [2024-11-08 17:36:18,979 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 58 selfloop transitions, 21 changer transitions 16/115 dead transitions. [2024-11-08 17:36:18,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 115 transitions, 1317 flow [2024-11-08 17:36:18,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:36:18,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 17:36:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 200 transitions. [2024-11-08 17:36:18,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45248868778280543 [2024-11-08 17:36:18,981 INFO L175 Difference]: Start difference. First operand has 184 places, 104 transitions, 1100 flow. Second operand 13 states and 200 transitions. [2024-11-08 17:36:18,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 115 transitions, 1317 flow [2024-11-08 17:36:18,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 115 transitions, 1247 flow, removed 2 selfloop flow, removed 13 redundant places. [2024-11-08 17:36:18,995 INFO L231 Difference]: Finished difference. Result has 180 places, 93 transitions, 956 flow [2024-11-08 17:36:18,995 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=1040, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=956, PETRI_PLACES=180, PETRI_TRANSITIONS=93} [2024-11-08 17:36:18,995 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 145 predicate places. [2024-11-08 17:36:18,996 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 93 transitions, 956 flow [2024-11-08 17:36:18,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:18,996 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:18,996 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:18,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 17:36:18,997 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:18,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:18,997 INFO L85 PathProgramCache]: Analyzing trace with hash -784839592, now seen corresponding path program 4 times [2024-11-08 17:36:18,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:18,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91241492] [2024-11-08 17:36:18,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:18,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:23,204 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:23,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:23,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91241492] [2024-11-08 17:36:23,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91241492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:23,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:23,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:36:23,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928963008] [2024-11-08 17:36:23,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:23,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:36:23,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:36:23,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:36:23,298 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:36:23,298 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 93 transitions, 956 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:23,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:23,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:36:23,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:25,008 INFO L124 PetriNetUnfolderBase]: 54/245 cut-off events. [2024-11-08 17:36:25,009 INFO L125 PetriNetUnfolderBase]: For 1177/1177 co-relation queries the response was YES. [2024-11-08 17:36:25,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1129 conditions, 245 events. 54/245 cut-off events. For 1177/1177 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1006 event pairs, 22 based on Foata normal form. 3/247 useless extension candidates. Maximal degree in co-relation 1064. Up to 129 conditions per place. [2024-11-08 17:36:25,013 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 54 selfloop transitions, 15 changer transitions 13/100 dead transitions. [2024-11-08 17:36:25,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 100 transitions, 1129 flow [2024-11-08 17:36:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:36:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 17:36:25,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 200 transitions. [2024-11-08 17:36:25,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45248868778280543 [2024-11-08 17:36:25,018 INFO L175 Difference]: Start difference. First operand has 180 places, 93 transitions, 956 flow. Second operand 13 states and 200 transitions. [2024-11-08 17:36:25,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 100 transitions, 1129 flow [2024-11-08 17:36:25,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 100 transitions, 1022 flow, removed 4 selfloop flow, removed 19 redundant places. [2024-11-08 17:36:25,029 INFO L231 Difference]: Finished difference. Result has 163 places, 84 transitions, 798 flow [2024-11-08 17:36:25,029 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=842, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=798, PETRI_PLACES=163, PETRI_TRANSITIONS=84} [2024-11-08 17:36:25,029 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 128 predicate places. [2024-11-08 17:36:25,029 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 84 transitions, 798 flow [2024-11-08 17:36:25,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:25,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:25,030 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:25,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-08 17:36:25,030 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:25,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1161990512, now seen corresponding path program 2 times [2024-11-08 17:36:25,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:25,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737378701] [2024-11-08 17:36:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:25,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:30,897 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:30,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:30,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737378701] [2024-11-08 17:36:30,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737378701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:30,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:30,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:36:30,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518890739] [2024-11-08 17:36:30,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:30,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:36:30,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:36:30,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:36:31,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:36:31,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 84 transitions, 798 flow. Second operand has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 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 17:36:31,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:31,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:36:31,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:32,645 INFO L124 PetriNetUnfolderBase]: 55/258 cut-off events. [2024-11-08 17:36:32,645 INFO L125 PetriNetUnfolderBase]: For 919/919 co-relation queries the response was YES. [2024-11-08 17:36:32,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 258 events. 55/258 cut-off events. For 919/919 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1136 event pairs, 23 based on Foata normal form. 9/266 useless extension candidates. Maximal degree in co-relation 1019. Up to 103 conditions per place. [2024-11-08 17:36:32,648 INFO L140 encePairwiseOnDemand]: 24/34 looper letters, 52 selfloop transitions, 12 changer transitions 19/99 dead transitions. [2024-11-08 17:36:32,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 99 transitions, 1036 flow [2024-11-08 17:36:32,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:36:32,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-08 17:36:32,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 187 transitions. [2024-11-08 17:36:32,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2024-11-08 17:36:32,650 INFO L175 Difference]: Start difference. First operand has 163 places, 84 transitions, 798 flow. Second operand 12 states and 187 transitions. [2024-11-08 17:36:32,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 99 transitions, 1036 flow [2024-11-08 17:36:32,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 99 transitions, 976 flow, removed 3 selfloop flow, removed 14 redundant places. [2024-11-08 17:36:32,660 INFO L231 Difference]: Finished difference. Result has 150 places, 75 transitions, 673 flow [2024-11-08 17:36:32,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=673, PETRI_PLACES=150, PETRI_TRANSITIONS=75} [2024-11-08 17:36:32,661 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 115 predicate places. [2024-11-08 17:36:32,661 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 75 transitions, 673 flow [2024-11-08 17:36:32,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.272727272727273) internal successors, (146), 11 states have internal predecessors, (146), 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 17:36:32,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:32,662 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:32,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-08 17:36:32,662 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:32,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:32,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1056243826, now seen corresponding path program 3 times [2024-11-08 17:36:32,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:32,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924517866] [2024-11-08 17:36:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:32,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:32,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:36,222 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:36,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:36,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924517866] [2024-11-08 17:36:36,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924517866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:36,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:36,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:36:36,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087806025] [2024-11-08 17:36:36,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:36,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:36:36,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:36,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:36:36,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:36:36,334 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:36:36,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 75 transitions, 673 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:36,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:36,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:36:36,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:37,236 INFO L124 PetriNetUnfolderBase]: 40/209 cut-off events. [2024-11-08 17:36:37,236 INFO L125 PetriNetUnfolderBase]: For 812/812 co-relation queries the response was YES. [2024-11-08 17:36:37,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 209 events. 40/209 cut-off events. For 812/812 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 789 event pairs, 23 based on Foata normal form. 6/215 useless extension candidates. Maximal degree in co-relation 787. Up to 85 conditions per place. [2024-11-08 17:36:37,238 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 50 selfloop transitions, 13 changer transitions 10/89 dead transitions. [2024-11-08 17:36:37,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 89 transitions, 881 flow [2024-11-08 17:36:37,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 17:36:37,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-08 17:36:37,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2024-11-08 17:36:37,239 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45588235294117646 [2024-11-08 17:36:37,239 INFO L175 Difference]: Start difference. First operand has 150 places, 75 transitions, 673 flow. Second operand 12 states and 186 transitions. [2024-11-08 17:36:37,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 89 transitions, 881 flow [2024-11-08 17:36:37,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 89 transitions, 819 flow, removed 11 selfloop flow, removed 15 redundant places. [2024-11-08 17:36:37,248 INFO L231 Difference]: Finished difference. Result has 142 places, 74 transitions, 636 flow [2024-11-08 17:36:37,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=636, PETRI_PLACES=142, PETRI_TRANSITIONS=74} [2024-11-08 17:36:37,249 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 107 predicate places. [2024-11-08 17:36:37,249 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 74 transitions, 636 flow [2024-11-08 17:36:37,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:37,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:37,250 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:37,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-08 17:36:37,250 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:37,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:37,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1199888042, now seen corresponding path program 4 times [2024-11-08 17:36:37,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:37,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799370963] [2024-11-08 17:36:37,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:37,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:39,333 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:39,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:39,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799370963] [2024-11-08 17:36:39,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799370963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:39,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:39,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:36:39,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792528115] [2024-11-08 17:36:39,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:39,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 17:36:39,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:39,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 17:36:39,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:36:39,388 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:36:39,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 74 transitions, 636 flow. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:39,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:39,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:36:39,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:40,244 INFO L124 PetriNetUnfolderBase]: 30/170 cut-off events. [2024-11-08 17:36:40,245 INFO L125 PetriNetUnfolderBase]: For 615/615 co-relation queries the response was YES. [2024-11-08 17:36:40,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 718 conditions, 170 events. 30/170 cut-off events. For 615/615 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 512 event pairs, 15 based on Foata normal form. 3/173 useless extension candidates. Maximal degree in co-relation 651. Up to 65 conditions per place. [2024-11-08 17:36:40,246 INFO L140 encePairwiseOnDemand]: 23/34 looper letters, 42 selfloop transitions, 16 changer transitions 10/83 dead transitions. [2024-11-08 17:36:40,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 83 transitions, 788 flow [2024-11-08 17:36:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:36:40,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-08 17:36:40,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 226 transitions. [2024-11-08 17:36:40,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44313725490196076 [2024-11-08 17:36:40,247 INFO L175 Difference]: Start difference. First operand has 142 places, 74 transitions, 636 flow. Second operand 15 states and 226 transitions. [2024-11-08 17:36:40,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 83 transitions, 788 flow [2024-11-08 17:36:40,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 83 transitions, 755 flow, removed 4 selfloop flow, removed 10 redundant places. [2024-11-08 17:36:40,253 INFO L231 Difference]: Finished difference. Result has 146 places, 68 transitions, 598 flow [2024-11-08 17:36:40,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=598, PETRI_PLACES=146, PETRI_TRANSITIONS=68} [2024-11-08 17:36:40,254 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 111 predicate places. [2024-11-08 17:36:40,254 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 68 transitions, 598 flow [2024-11-08 17:36:40,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 10 states have internal predecessors, (134), 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 17:36:40,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:40,254 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:40,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-08 17:36:40,255 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:40,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:40,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1515793792, now seen corresponding path program 1 times [2024-11-08 17:36:40,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:40,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165842569] [2024-11-08 17:36:40,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:40,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:43,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:43,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165842569] [2024-11-08 17:36:43,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165842569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:43,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:43,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:36:43,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413278830] [2024-11-08 17:36:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:43,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:36:43,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:36:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:36:43,179 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-08 17:36:43,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 68 transitions, 598 flow. Second operand has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 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 17:36:43,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:43,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-08 17:36:43,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:44,446 INFO L124 PetriNetUnfolderBase]: 25/155 cut-off events. [2024-11-08 17:36:44,446 INFO L125 PetriNetUnfolderBase]: For 545/545 co-relation queries the response was YES. [2024-11-08 17:36:44,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 155 events. 25/155 cut-off events. For 545/545 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 423 event pairs, 4 based on Foata normal form. 2/157 useless extension candidates. Maximal degree in co-relation 633. Up to 36 conditions per place. [2024-11-08 17:36:44,447 INFO L140 encePairwiseOnDemand]: 25/34 looper letters, 50 selfloop transitions, 23 changer transitions 0/85 dead transitions. [2024-11-08 17:36:44,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 85 transitions, 827 flow [2024-11-08 17:36:44,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 17:36:44,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-08 17:36:44,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 192 transitions. [2024-11-08 17:36:44,449 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4343891402714932 [2024-11-08 17:36:44,449 INFO L175 Difference]: Start difference. First operand has 146 places, 68 transitions, 598 flow. Second operand 13 states and 192 transitions. [2024-11-08 17:36:44,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 85 transitions, 827 flow [2024-11-08 17:36:44,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 85 transitions, 759 flow, removed 7 selfloop flow, removed 17 redundant places. [2024-11-08 17:36:44,455 INFO L231 Difference]: Finished difference. Result has 140 places, 76 transitions, 652 flow [2024-11-08 17:36:44,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=652, PETRI_PLACES=140, PETRI_TRANSITIONS=76} [2024-11-08 17:36:44,456 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 105 predicate places. [2024-11-08 17:36:44,456 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 76 transitions, 652 flow [2024-11-08 17:36:44,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.777777777777779) internal successors, (115), 9 states have internal predecessors, (115), 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 17:36:44,456 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:44,456 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:44,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-08 17:36:44,457 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:44,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:44,457 INFO L85 PathProgramCache]: Analyzing trace with hash 856601829, now seen corresponding path program 1 times [2024-11-08 17:36:44,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:44,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522063574] [2024-11-08 17:36:44,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:44,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:48,465 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:48,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:48,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522063574] [2024-11-08 17:36:48,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522063574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:48,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:48,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:36:48,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468813062] [2024-11-08 17:36:48,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:48,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:36:48,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:48,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:36:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:36:48,534 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:36:48,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 76 transitions, 652 flow. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 17:36:48,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:48,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:36:48,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:49,390 INFO L124 PetriNetUnfolderBase]: 23/154 cut-off events. [2024-11-08 17:36:49,390 INFO L125 PetriNetUnfolderBase]: For 543/543 co-relation queries the response was YES. [2024-11-08 17:36:49,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 154 events. 23/154 cut-off events. For 543/543 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 414 event pairs, 7 based on Foata normal form. 2/156 useless extension candidates. Maximal degree in co-relation 575. Up to 56 conditions per place. [2024-11-08 17:36:49,392 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 44 selfloop transitions, 8 changer transitions 15/80 dead transitions. [2024-11-08 17:36:49,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 80 transitions, 786 flow [2024-11-08 17:36:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:36:49,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 17:36:49,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 153 transitions. [2024-11-08 17:36:49,393 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45 [2024-11-08 17:36:49,393 INFO L175 Difference]: Start difference. First operand has 140 places, 76 transitions, 652 flow. Second operand 10 states and 153 transitions. [2024-11-08 17:36:49,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 80 transitions, 786 flow [2024-11-08 17:36:49,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 80 transitions, 759 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-08 17:36:49,400 INFO L231 Difference]: Finished difference. Result has 139 places, 65 transitions, 581 flow [2024-11-08 17:36:49,400 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=619, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=581, PETRI_PLACES=139, PETRI_TRANSITIONS=65} [2024-11-08 17:36:49,400 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 104 predicate places. [2024-11-08 17:36:49,401 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 65 transitions, 581 flow [2024-11-08 17:36:49,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 17:36:49,401 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:49,401 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:49,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-08 17:36:49,402 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:49,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:49,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1475644254, now seen corresponding path program 1 times [2024-11-08 17:36:49,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:49,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292325082] [2024-11-08 17:36:49,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:49,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:56,659 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:56,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:56,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292325082] [2024-11-08 17:36:56,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292325082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:56,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:56,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:36:56,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290859424] [2024-11-08 17:36:56,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:56,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:36:56,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:56,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:36:56,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:36:56,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:36:56,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 65 transitions, 581 flow. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 17:36:56,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:56,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:36:56,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:36:57,699 INFO L124 PetriNetUnfolderBase]: 12/113 cut-off events. [2024-11-08 17:36:57,699 INFO L125 PetriNetUnfolderBase]: For 507/511 co-relation queries the response was YES. [2024-11-08 17:36:57,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 113 events. 12/113 cut-off events. For 507/511 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 221 event pairs, 2 based on Foata normal form. 8/121 useless extension candidates. Maximal degree in co-relation 506. Up to 25 conditions per place. [2024-11-08 17:36:57,700 INFO L140 encePairwiseOnDemand]: 26/34 looper letters, 39 selfloop transitions, 4 changer transitions 18/71 dead transitions. [2024-11-08 17:36:57,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 71 transitions, 727 flow [2024-11-08 17:36:57,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:36:57,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 17:36:57,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 137 transitions. [2024-11-08 17:36:57,702 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4477124183006536 [2024-11-08 17:36:57,703 INFO L175 Difference]: Start difference. First operand has 139 places, 65 transitions, 581 flow. Second operand 9 states and 137 transitions. [2024-11-08 17:36:57,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 71 transitions, 727 flow [2024-11-08 17:36:57,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 71 transitions, 681 flow, removed 3 selfloop flow, removed 13 redundant places. [2024-11-08 17:36:57,709 INFO L231 Difference]: Finished difference. Result has 119 places, 53 transitions, 455 flow [2024-11-08 17:36:57,709 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=535, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=455, PETRI_PLACES=119, PETRI_TRANSITIONS=53} [2024-11-08 17:36:57,710 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 84 predicate places. [2024-11-08 17:36:57,710 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 53 transitions, 455 flow [2024-11-08 17:36:57,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 17:36:57,710 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:36:57,710 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:36:57,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-08 17:36:57,711 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:36:57,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:36:57,711 INFO L85 PathProgramCache]: Analyzing trace with hash -767767896, now seen corresponding path program 1 times [2024-11-08 17:36:57,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:36:57,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396482662] [2024-11-08 17:36:57,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:36:57,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:36:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:36:59,371 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:36:59,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:36:59,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396482662] [2024-11-08 17:36:59,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396482662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:36:59,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:36:59,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:36:59,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237181156] [2024-11-08 17:36:59,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:36:59,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:36:59,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:36:59,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:36:59,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:36:59,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 34 [2024-11-08 17:36:59,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 53 transitions, 455 flow. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 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 17:36:59,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:36:59,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 34 [2024-11-08 17:36:59,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:37:00,044 INFO L124 PetriNetUnfolderBase]: 6/78 cut-off events. [2024-11-08 17:37:00,044 INFO L125 PetriNetUnfolderBase]: For 367/369 co-relation queries the response was YES. [2024-11-08 17:37:00,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 78 events. 6/78 cut-off events. For 367/369 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 3/81 useless extension candidates. Maximal degree in co-relation 354. Up to 26 conditions per place. [2024-11-08 17:37:00,045 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 34 selfloop transitions, 12 changer transitions 0/55 dead transitions. [2024-11-08 17:37:00,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 55 transitions, 549 flow [2024-11-08 17:37:00,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:37:00,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 17:37:00,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 136 transitions. [2024-11-08 17:37:00,047 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-11-08 17:37:00,047 INFO L175 Difference]: Start difference. First operand has 119 places, 53 transitions, 455 flow. Second operand 10 states and 136 transitions. [2024-11-08 17:37:00,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 55 transitions, 549 flow [2024-11-08 17:37:00,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 55 transitions, 500 flow, removed 10 selfloop flow, removed 15 redundant places. [2024-11-08 17:37:00,052 INFO L231 Difference]: Finished difference. Result has 94 places, 52 transitions, 422 flow [2024-11-08 17:37:00,053 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=422, PETRI_PLACES=94, PETRI_TRANSITIONS=52} [2024-11-08 17:37:00,054 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 59 predicate places. [2024-11-08 17:37:00,054 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 52 transitions, 422 flow [2024-11-08 17:37:00,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 9 states have internal predecessors, (116), 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 17:37:00,054 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:37:00,054 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:37:00,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-08 17:37:00,054 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-08 17:37:00,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:37:00,055 INFO L85 PathProgramCache]: Analyzing trace with hash 291901134, now seen corresponding path program 2 times [2024-11-08 17:37:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:37:00,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596942208] [2024-11-08 17:37:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:37:00,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:37:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:37:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-08 17:37:02,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:37:02,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596942208] [2024-11-08 17:37:02,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596942208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:37:02,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:37:02,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:37:02,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571247329] [2024-11-08 17:37:02,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:37:02,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:37:02,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:37:02,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:37:02,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:37:02,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 34 [2024-11-08 17:37:02,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 52 transitions, 422 flow. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 17:37:02,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:37:02,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 34 [2024-11-08 17:37:02,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:37:03,302 INFO L124 PetriNetUnfolderBase]: 5/74 cut-off events. [2024-11-08 17:37:03,302 INFO L125 PetriNetUnfolderBase]: For 324/326 co-relation queries the response was YES. [2024-11-08 17:37:03,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 346 conditions, 74 events. 5/74 cut-off events. For 324/326 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 5/79 useless extension candidates. Maximal degree in co-relation 321. Up to 25 conditions per place. [2024-11-08 17:37:03,303 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2024-11-08 17:37:03,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 52 transitions, 503 flow [2024-11-08 17:37:03,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 17:37:03,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-08 17:37:03,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 144 transitions. [2024-11-08 17:37:03,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4235294117647059 [2024-11-08 17:37:03,304 INFO L175 Difference]: Start difference. First operand has 94 places, 52 transitions, 422 flow. Second operand 10 states and 144 transitions. [2024-11-08 17:37:03,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 52 transitions, 503 flow [2024-11-08 17:37:03,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 52 transitions, 472 flow, removed 2 selfloop flow, removed 10 redundant places. [2024-11-08 17:37:03,308 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2024-11-08 17:37:03,308 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2024-11-08 17:37:03,309 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 56 predicate places. [2024-11-08 17:37:03,309 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2024-11-08 17:37:03,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 9 states have internal predecessors, (123), 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 17:37:03,312 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-08 17:37:03,312 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-08 17:37:03,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-08 17:37:03,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-08 17:37:03,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 13 remaining) [2024-11-08 17:37:03,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-08 17:37:03,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 13 remaining) [2024-11-08 17:37:03,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 13 remaining) [2024-11-08 17:37:03,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 13 remaining) [2024-11-08 17:37:03,313 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-08 17:37:03,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-08 17:37:03,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-08 17:37:03,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-08 17:37:03,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-08 17:37:03,314 INFO L407 BasicCegarLoop]: Path program histogram: [5, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:37:03,321 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-08 17:37:03,321 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:37:03,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:37:03 BasicIcfg [2024-11-08 17:37:03,327 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:37:03,328 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:37:03,328 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:37:03,328 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:37:03,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:34:37" (3/4) ... [2024-11-08 17:37:03,331 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:37:03,334 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-08 17:37:03,339 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 86 nodes and edges [2024-11-08 17:37:03,340 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 17:37:03,340 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 17:37:03,469 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:37:03,470 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:37:03,470 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:37:03,471 INFO L158 Benchmark]: Toolchain (without parser) took 147789.09ms. Allocated memory was 155.2MB in the beginning and 836.8MB in the end (delta: 681.6MB). Free memory was 116.1MB in the beginning and 411.4MB in the end (delta: -295.3MB). Peak memory consumption was 384.9MB. Max. memory is 16.1GB. [2024-11-08 17:37:03,472 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:37:03,472 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.05ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 97.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 17:37:03,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.01ms. Allocated memory is still 155.2MB. Free memory was 97.6MB in the beginning and 94.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:37:03,473 INFO L158 Benchmark]: Boogie Preprocessor took 67.59ms. Allocated memory is still 155.2MB. Free memory was 94.9MB in the beginning and 92.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:37:03,473 INFO L158 Benchmark]: RCFGBuilder took 1267.69ms. Allocated memory is still 155.2MB. Free memory was 92.1MB in the beginning and 80.7MB in the end (delta: 11.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-08 17:37:03,474 INFO L158 Benchmark]: TraceAbstraction took 145468.17ms. Allocated memory was 155.2MB in the beginning and 836.8MB in the end (delta: 681.6MB). Free memory was 79.8MB in the beginning and 416.6MB in the end (delta: -336.8MB). Peak memory consumption was 347.6MB. Max. memory is 16.1GB. [2024-11-08 17:37:03,475 INFO L158 Benchmark]: Witness Printer took 142.60ms. Allocated memory is still 836.8MB. Free memory was 416.6MB in the beginning and 411.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:37:03,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 783.05ms. Allocated memory is still 155.2MB. Free memory was 116.1MB in the beginning and 97.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.01ms. Allocated memory is still 155.2MB. Free memory was 97.6MB in the beginning and 94.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.59ms. Allocated memory is still 155.2MB. Free memory was 94.9MB in the beginning and 92.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1267.69ms. Allocated memory is still 155.2MB. Free memory was 92.1MB in the beginning and 80.7MB in the end (delta: 11.4MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * TraceAbstraction took 145468.17ms. Allocated memory was 155.2MB in the beginning and 836.8MB in the end (delta: 681.6MB). Free memory was 79.8MB in the beginning and 416.6MB in the end (delta: -336.8MB). Peak memory consumption was 347.6MB. Max. memory is 16.1GB. * Witness Printer took 142.60ms. Allocated memory is still 836.8MB. Free memory was 416.6MB in the beginning and 411.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 937]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 944]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 931]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 932]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 48 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 145.3s, OverallIterations: 34, TraceHistogramMax: 10, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 38.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1823 SdHoareTripleChecker+Valid, 10.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1662 mSDsluCounter, 1863 SdHoareTripleChecker+Invalid, 9.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1749 mSDsCounter, 174 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6215 IncrementalHoareTripleChecker+Invalid, 6389 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 174 mSolverCounterUnsat, 114 mSDtfsCounter, 6215 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 669 GetRequests, 176 SyntacticMatches, 11 SemanticMatches, 482 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1416 ImplicationChecksByTransitivity, 40.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1390occurred in iteration=20, InterpolantAutomatonStates: 385, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 102.7s InterpolantComputationTime, 1675 NumberOfCodeBlocks, 1635 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1703 ConstructedInterpolants, 0 QuantifiedInterpolants, 120694 SizeOfPredicates, 23 NumberOfNonLiveVariables, 1141 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 43 InterpolantComputations, 31 PerfectInterpolantSequences, 4779/5209 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 17:37:03,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e65337c5-f114-4395-a898-93abfcc7dcaf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE