./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:06:58,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:06:58,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 13:06:58,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:06:58,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:06:58,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:06:58,449 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:06:58,449 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:06:58,450 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:06:58,450 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:06:58,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:06:58,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:06:58,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:06:58,450 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:06:58,450 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:06:58,451 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 13:06:58,451 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:06:58,452 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:06:58,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:06:58,452 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:06:58,453 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:06:58,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:06:58,454 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-12-02 13:06:58,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:06:58,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:06:58,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:06:58,682 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:06:58,682 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:06:58,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-12-02 13:07:01,349 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/data/ad657777e/424960b8b8b74d59ad35ff61762fb861/FLAG6388c7fe3 [2024-12-02 13:07:01,582 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:07:01,583 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-12-02 13:07:01,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/data/ad657777e/424960b8b8b74d59ad35ff61762fb861/FLAG6388c7fe3 [2024-12-02 13:07:01,608 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/data/ad657777e/424960b8b8b74d59ad35ff61762fb861 [2024-12-02 13:07:01,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:07:01,611 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:07:01,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:07:01,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:07:01,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:07:01,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:01,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed5dcbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01, skipping insertion in model container [2024-12-02 13:07:01,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:01,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:07:01,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:07:01,883 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:07:01,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:07:01,948 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:07:01,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01 WrapperNode [2024-12-02 13:07:01,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:07:01,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:07:01,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:07:01,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:07:01,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:01,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:01,985 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 126 [2024-12-02 13:07:01,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:07:01,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:07:01,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:07:01,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:07:01,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:01,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:01,995 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,007 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-12-02 13:07:02,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,014 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,020 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:07:02,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:07:02,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:07:02,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:07:02,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (1/1) ... [2024-12-02 13:07:02,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:07:02,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:02,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:07:02,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:07:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 13:07:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 13:07:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-12-02 13:07:02,069 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-12-02 13:07:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 13:07:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 13:07:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 13:07:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:07:02,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:07:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:07:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 13:07:02,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:07:02,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:07:02,071 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 13:07:02,176 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:07:02,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:07:02,378 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 13:07:02,378 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:07:02,518 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:07:02,518 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 13:07:02,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:07:02 BoogieIcfgContainer [2024-12-02 13:07:02,518 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:07:02,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:07:02,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:07:02,523 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:07:02,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:07:01" (1/3) ... [2024-12-02 13:07:02,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a7bd56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:07:02, skipping insertion in model container [2024-12-02 13:07:02,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:07:01" (2/3) ... [2024-12-02 13:07:02,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78a7bd56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:07:02, skipping insertion in model container [2024-12-02 13:07:02,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:07:02" (3/3) ... [2024-12-02 13:07:02,525 INFO L128 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-12-02 13:07:02,535 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:07:02,536 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i that has 2 procedures, 36 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-12-02 13:07:02,537 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 13:07:02,575 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-12-02 13:07:02,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 41 transitions, 86 flow [2024-12-02 13:07:02,627 INFO L124 PetriNetUnfolderBase]: 6/40 cut-off events. [2024-12-02 13:07:02,629 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:07:02,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 40 events. 6/40 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2024-12-02 13:07:02,632 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 41 transitions, 86 flow [2024-12-02 13:07:02,635 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 40 transitions, 83 flow [2024-12-02 13:07:02,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:07:02,652 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;@617011a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:07:02,652 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-12-02 13:07:02,659 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 13:07:02,659 INFO L124 PetriNetUnfolderBase]: 2/19 cut-off events. [2024-12-02 13:07:02,659 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:07:02,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:02,660 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:02,661 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:02,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:02,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1348055269, now seen corresponding path program 1 times [2024-12-02 13:07:02,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:02,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274766667] [2024-12-02 13:07:02,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:02,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:03,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:03,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274766667] [2024-12-02 13:07:03,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274766667] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:03,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:03,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:07:03,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527132240] [2024-12-02 13:07:03,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:03,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:07:03,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:03,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:07:03,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:07:03,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-12-02 13:07:03,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-12-02 13:07:03,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:03,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-12-02 13:07:03,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:03,387 INFO L124 PetriNetUnfolderBase]: 363/738 cut-off events. [2024-12-02 13:07:03,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 13:07:03,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1376 conditions, 738 events. 363/738 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3602 event pairs, 35 based on Foata normal form. 64/658 useless extension candidates. Maximal degree in co-relation 1367. Up to 352 conditions per place. [2024-12-02 13:07:03,395 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 72 selfloop transitions, 9 changer transitions 0/93 dead transitions. [2024-12-02 13:07:03,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 93 transitions, 351 flow [2024-12-02 13:07:03,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:07:03,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:07:03,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-12-02 13:07:03,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7032520325203252 [2024-12-02 13:07:03,406 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 83 flow. Second operand 6 states and 173 transitions. [2024-12-02 13:07:03,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 93 transitions, 351 flow [2024-12-02 13:07:03,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 93 transitions, 350 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 13:07:03,414 INFO L231 Difference]: Finished difference. Result has 45 places, 47 transitions, 148 flow [2024-12-02 13:07:03,416 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=47} [2024-12-02 13:07:03,418 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 7 predicate places. [2024-12-02 13:07:03,418 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 47 transitions, 148 flow [2024-12-02 13:07:03,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 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) [2024-12-02 13:07:03,419 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:03,419 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:03,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:07:03,419 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:03,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:03,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1598996808, now seen corresponding path program 1 times [2024-12-02 13:07:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:03,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461023664] [2024-12-02 13:07:03,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:03,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:03,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:03,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:03,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461023664] [2024-12-02 13:07:03,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461023664] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:03,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:03,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:07:03,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585928264] [2024-12-02 13:07:03,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:03,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:07:03,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:03,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:07:03,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:07:03,556 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-12-02 13:07:03,557 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 47 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:07:03,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:03,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-12-02 13:07:03,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:03,801 INFO L124 PetriNetUnfolderBase]: 298/648 cut-off events. [2024-12-02 13:07:03,802 INFO L125 PetriNetUnfolderBase]: For 135/139 co-relation queries the response was YES. [2024-12-02 13:07:03,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400 conditions, 648 events. 298/648 cut-off events. For 135/139 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3156 event pairs, 26 based on Foata normal form. 22/593 useless extension candidates. Maximal degree in co-relation 1386. Up to 378 conditions per place. [2024-12-02 13:07:03,806 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 66 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-12-02 13:07:03,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 90 transitions, 389 flow [2024-12-02 13:07:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:07:03,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:07:03,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 165 transitions. [2024-12-02 13:07:03,808 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6707317073170732 [2024-12-02 13:07:03,808 INFO L175 Difference]: Start difference. First operand has 45 places, 47 transitions, 148 flow. Second operand 6 states and 165 transitions. [2024-12-02 13:07:03,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 90 transitions, 389 flow [2024-12-02 13:07:03,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 90 transitions, 389 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 13:07:03,812 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 192 flow [2024-12-02 13:07:03,812 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=192, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2024-12-02 13:07:03,813 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 15 predicate places. [2024-12-02 13:07:03,813 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 192 flow [2024-12-02 13:07:03,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:07:03,813 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:03,813 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:03,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 13:07:03,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:03,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:03,814 INFO L85 PathProgramCache]: Analyzing trace with hash 876476428, now seen corresponding path program 1 times [2024-12-02 13:07:03,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710888240] [2024-12-02 13:07:03,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:03,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:03,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:03,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710888240] [2024-12-02 13:07:03,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710888240] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:03,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:03,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:07:03,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124612714] [2024-12-02 13:07:03,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:03,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:07:03,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:03,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:07:03,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:07:03,904 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-12-02 13:07:03,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-12-02 13:07:03,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:03,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-12-02 13:07:03,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:04,161 INFO L124 PetriNetUnfolderBase]: 467/992 cut-off events. [2024-12-02 13:07:04,161 INFO L125 PetriNetUnfolderBase]: For 570/585 co-relation queries the response was YES. [2024-12-02 13:07:04,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 992 events. 467/992 cut-off events. For 570/585 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 5319 event pairs, 95 based on Foata normal form. 32/945 useless extension candidates. Maximal degree in co-relation 2372. Up to 491 conditions per place. [2024-12-02 13:07:04,166 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 93 selfloop transitions, 20 changer transitions 0/124 dead transitions. [2024-12-02 13:07:04,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 124 transitions, 745 flow [2024-12-02 13:07:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:07:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:07:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 155 transitions. [2024-12-02 13:07:04,168 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6300813008130082 [2024-12-02 13:07:04,168 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 192 flow. Second operand 6 states and 155 transitions. [2024-12-02 13:07:04,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 124 transitions, 745 flow [2024-12-02 13:07:04,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 124 transitions, 719 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-12-02 13:07:04,174 INFO L231 Difference]: Finished difference. Result has 61 places, 65 transitions, 351 flow [2024-12-02 13:07:04,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=351, PETRI_PLACES=61, PETRI_TRANSITIONS=65} [2024-12-02 13:07:04,175 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 23 predicate places. [2024-12-02 13:07:04,175 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 65 transitions, 351 flow [2024-12-02 13:07:04,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 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) [2024-12-02 13:07:04,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:04,176 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:04,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:07:04,176 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:04,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:04,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1400965925, now seen corresponding path program 1 times [2024-12-02 13:07:04,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:04,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957269318] [2024-12-02 13:07:04,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:04,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:04,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:04,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:04,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957269318] [2024-12-02 13:07:04,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957269318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:04,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:04,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:07:04,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628840383] [2024-12-02 13:07:04,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:04,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:07:04,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:04,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:07:04,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:07:04,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-12-02 13:07:04,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 65 transitions, 351 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-12-02 13:07:04,269 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:04,269 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-12-02 13:07:04,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:04,459 INFO L124 PetriNetUnfolderBase]: 335/756 cut-off events. [2024-12-02 13:07:04,459 INFO L125 PetriNetUnfolderBase]: For 760/799 co-relation queries the response was YES. [2024-12-02 13:07:04,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2121 conditions, 756 events. 335/756 cut-off events. For 760/799 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3731 event pairs, 111 based on Foata normal form. 35/765 useless extension candidates. Maximal degree in co-relation 2099. Up to 454 conditions per place. [2024-12-02 13:07:04,463 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 57 selfloop transitions, 11 changer transitions 3/86 dead transitions. [2024-12-02 13:07:04,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 86 transitions, 555 flow [2024-12-02 13:07:04,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:07:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 13:07:04,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2024-12-02 13:07:04,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-12-02 13:07:04,465 INFO L175 Difference]: Start difference. First operand has 61 places, 65 transitions, 351 flow. Second operand 5 states and 130 transitions. [2024-12-02 13:07:04,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 86 transitions, 555 flow [2024-12-02 13:07:04,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 533 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-12-02 13:07:04,472 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 365 flow [2024-12-02 13:07:04,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=365, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-12-02 13:07:04,473 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 27 predicate places. [2024-12-02 13:07:04,473 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 365 flow [2024-12-02 13:07:04,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-12-02 13:07:04,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:04,473 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:04,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 13:07:04,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:04,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash 962360062, now seen corresponding path program 1 times [2024-12-02 13:07:04,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879039321] [2024-12-02 13:07:04,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:04,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:04,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:04,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:04,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879039321] [2024-12-02 13:07:04,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879039321] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:04,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:04,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:07:04,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472851661] [2024-12-02 13:07:04,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:04,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:07:04,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:04,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:07:04,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:07:04,531 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-12-02 13:07:04,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-12-02 13:07:04,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:04,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-12-02 13:07:04,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:04,728 INFO L124 PetriNetUnfolderBase]: 398/863 cut-off events. [2024-12-02 13:07:04,728 INFO L125 PetriNetUnfolderBase]: For 1326/1408 co-relation queries the response was YES. [2024-12-02 13:07:04,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 863 events. 398/863 cut-off events. For 1326/1408 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4472 event pairs, 35 based on Foata normal form. 80/911 useless extension candidates. Maximal degree in co-relation 2527. Up to 559 conditions per place. [2024-12-02 13:07:04,733 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 84 selfloop transitions, 3 changer transitions 1/101 dead transitions. [2024-12-02 13:07:04,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 101 transitions, 717 flow [2024-12-02 13:07:04,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:07:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 13:07:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-12-02 13:07:04,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.676829268292683 [2024-12-02 13:07:04,734 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 365 flow. Second operand 4 states and 111 transitions. [2024-12-02 13:07:04,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 101 transitions, 717 flow [2024-12-02 13:07:04,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 101 transitions, 715 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-12-02 13:07:04,739 INFO L231 Difference]: Finished difference. Result has 70 places, 65 transitions, 383 flow [2024-12-02 13:07:04,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=70, PETRI_TRANSITIONS=65} [2024-12-02 13:07:04,740 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 32 predicate places. [2024-12-02 13:07:04,740 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 65 transitions, 383 flow [2024-12-02 13:07:04,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-12-02 13:07:04,740 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:04,740 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:04,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:07:04,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:04,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:04,741 INFO L85 PathProgramCache]: Analyzing trace with hash 550543689, now seen corresponding path program 1 times [2024-12-02 13:07:04,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:04,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342329350] [2024-12-02 13:07:04,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:04,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:04,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:04,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:04,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342329350] [2024-12-02 13:07:04,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342329350] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:04,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:04,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 13:07:04,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960945833] [2024-12-02 13:07:04,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:04,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:07:04,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:04,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:07:04,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 13:07:04,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-12-02 13:07:04,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 65 transitions, 383 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:07:04,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:04,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-12-02 13:07:04,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:05,222 INFO L124 PetriNetUnfolderBase]: 367/867 cut-off events. [2024-12-02 13:07:05,222 INFO L125 PetriNetUnfolderBase]: For 1184/1202 co-relation queries the response was YES. [2024-12-02 13:07:05,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2598 conditions, 867 events. 367/867 cut-off events. For 1184/1202 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4663 event pairs, 177 based on Foata normal form. 7/869 useless extension candidates. Maximal degree in co-relation 2569. Up to 609 conditions per place. [2024-12-02 13:07:05,229 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 57 selfloop transitions, 7 changer transitions 0/78 dead transitions. [2024-12-02 13:07:05,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 78 transitions, 572 flow [2024-12-02 13:07:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 13:07:05,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-02 13:07:05,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 117 transitions. [2024-12-02 13:07:05,231 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5707317073170731 [2024-12-02 13:07:05,231 INFO L175 Difference]: Start difference. First operand has 70 places, 65 transitions, 383 flow. Second operand 5 states and 117 transitions. [2024-12-02 13:07:05,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 78 transitions, 572 flow [2024-12-02 13:07:05,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 78 transitions, 559 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-12-02 13:07:05,238 INFO L231 Difference]: Finished difference. Result has 73 places, 66 transitions, 400 flow [2024-12-02 13:07:05,238 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=359, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=400, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2024-12-02 13:07:05,239 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 35 predicate places. [2024-12-02 13:07:05,239 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 66 transitions, 400 flow [2024-12-02 13:07:05,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:07:05,239 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:05,239 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:05,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 13:07:05,240 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:05,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:05,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1807706259, now seen corresponding path program 2 times [2024-12-02 13:07:05,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:05,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425085802] [2024-12-02 13:07:05,240 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:05,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:05,257 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:07:05,258 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:05,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:05,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425085802] [2024-12-02 13:07:05,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425085802] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:05,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:05,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:07:05,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428654283] [2024-12-02 13:07:05,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:05,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:07:05,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:05,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:07:05,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:07:05,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-12-02 13:07:05,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 400 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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) [2024-12-02 13:07:05,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:05,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-12-02 13:07:05,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:05,875 INFO L124 PetriNetUnfolderBase]: 400/942 cut-off events. [2024-12-02 13:07:05,875 INFO L125 PetriNetUnfolderBase]: For 1607/1625 co-relation queries the response was YES. [2024-12-02 13:07:05,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2974 conditions, 942 events. 400/942 cut-off events. For 1607/1625 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 5175 event pairs, 182 based on Foata normal form. 13/951 useless extension candidates. Maximal degree in co-relation 2943. Up to 630 conditions per place. [2024-12-02 13:07:05,879 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 68 selfloop transitions, 20 changer transitions 1/103 dead transitions. [2024-12-02 13:07:05,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 103 transitions, 819 flow [2024-12-02 13:07:05,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:07:05,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 13:07:05,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 208 transitions. [2024-12-02 13:07:05,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5073170731707317 [2024-12-02 13:07:05,881 INFO L175 Difference]: Start difference. First operand has 73 places, 66 transitions, 400 flow. Second operand 10 states and 208 transitions. [2024-12-02 13:07:05,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 103 transitions, 819 flow [2024-12-02 13:07:05,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 103 transitions, 787 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-12-02 13:07:05,888 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 578 flow [2024-12-02 13:07:05,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=386, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=578, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-12-02 13:07:05,889 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 46 predicate places. [2024-12-02 13:07:05,889 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 578 flow [2024-12-02 13:07:05,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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) [2024-12-02 13:07:05,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:05,890 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:05,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:07:05,890 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:05,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:05,891 INFO L85 PathProgramCache]: Analyzing trace with hash 903761845, now seen corresponding path program 3 times [2024-12-02 13:07:05,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:05,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146636012] [2024-12-02 13:07:05,891 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:07:05,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:05,904 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 13:07:05,904 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:06,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:06,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146636012] [2024-12-02 13:07:06,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146636012] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:06,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:06,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:07:06,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925499366] [2024-12-02 13:07:06,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:06,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:07:06,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:06,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:07:06,124 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:07:06,128 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2024-12-02 13:07:06,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 578 flow. Second operand has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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) [2024-12-02 13:07:06,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:06,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2024-12-02 13:07:06,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:06,432 INFO L124 PetriNetUnfolderBase]: 393/935 cut-off events. [2024-12-02 13:07:06,432 INFO L125 PetriNetUnfolderBase]: For 2076/2093 co-relation queries the response was YES. [2024-12-02 13:07:06,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3139 conditions, 935 events. 393/935 cut-off events. For 2076/2093 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4825 event pairs, 154 based on Foata normal form. 12/944 useless extension candidates. Maximal degree in co-relation 3103. Up to 605 conditions per place. [2024-12-02 13:07:06,439 INFO L140 encePairwiseOnDemand]: 32/41 looper letters, 71 selfloop transitions, 23 changer transitions 1/109 dead transitions. [2024-12-02 13:07:06,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 109 transitions, 959 flow [2024-12-02 13:07:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:07:06,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 13:07:06,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 176 transitions. [2024-12-02 13:07:06,440 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2024-12-02 13:07:06,440 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 578 flow. Second operand 8 states and 176 transitions. [2024-12-02 13:07:06,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 109 transitions, 959 flow [2024-12-02 13:07:06,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 109 transitions, 913 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-12-02 13:07:06,450 INFO L231 Difference]: Finished difference. Result has 91 places, 85 transitions, 697 flow [2024-12-02 13:07:06,450 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=697, PETRI_PLACES=91, PETRI_TRANSITIONS=85} [2024-12-02 13:07:06,451 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 53 predicate places. [2024-12-02 13:07:06,451 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 85 transitions, 697 flow [2024-12-02 13:07:06,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.75) internal successors, (126), 8 states have internal predecessors, (126), 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) [2024-12-02 13:07:06,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:06,451 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:06,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:07:06,451 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:06,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:06,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2018134911, now seen corresponding path program 1 times [2024-12-02 13:07:06,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:06,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828793956] [2024-12-02 13:07:06,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:06,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:06,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:06,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828793956] [2024-12-02 13:07:06,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828793956] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:06,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337205309] [2024-12-02 13:07:06,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:06,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:06,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:06,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:06,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:07:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:06,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 13:07:06,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:06,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 13:07:07,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-12-02 13:07:07,091 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-12-02 13:07:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:07,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:07,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:07,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337205309] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:07:07,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:07:07,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 19 [2024-12-02 13:07:07,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458569014] [2024-12-02 13:07:07,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:07,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 13:07:07,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:07,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 13:07:07,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2024-12-02 13:07:07,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 41 [2024-12-02 13:07:07,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 85 transitions, 697 flow. Second operand has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 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) [2024-12-02 13:07:07,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:07,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 41 [2024-12-02 13:07:07,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:08,733 INFO L124 PetriNetUnfolderBase]: 1416/2974 cut-off events. [2024-12-02 13:07:08,733 INFO L125 PetriNetUnfolderBase]: For 5999/6214 co-relation queries the response was YES. [2024-12-02 13:07:08,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9773 conditions, 2974 events. 1416/2974 cut-off events. For 5999/6214 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 17636 event pairs, 108 based on Foata normal form. 198/3154 useless extension candidates. Maximal degree in co-relation 9733. Up to 576 conditions per place. [2024-12-02 13:07:08,747 INFO L140 encePairwiseOnDemand]: 30/41 looper letters, 348 selfloop transitions, 102 changer transitions 0/465 dead transitions. [2024-12-02 13:07:08,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 465 transitions, 3915 flow [2024-12-02 13:07:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:07:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-12-02 13:07:08,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 543 transitions. [2024-12-02 13:07:08,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6019955654101996 [2024-12-02 13:07:08,750 INFO L175 Difference]: Start difference. First operand has 91 places, 85 transitions, 697 flow. Second operand 22 states and 543 transitions. [2024-12-02 13:07:08,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 465 transitions, 3915 flow [2024-12-02 13:07:08,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 465 transitions, 3776 flow, removed 42 selfloop flow, removed 4 redundant places. [2024-12-02 13:07:08,764 INFO L231 Difference]: Finished difference. Result has 117 places, 179 transitions, 1724 flow [2024-12-02 13:07:08,764 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=648, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1724, PETRI_PLACES=117, PETRI_TRANSITIONS=179} [2024-12-02 13:07:08,765 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 79 predicate places. [2024-12-02 13:07:08,765 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 179 transitions, 1724 flow [2024-12-02 13:07:08,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 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) [2024-12-02 13:07:08,765 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:08,765 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:08,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:07:08,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 13:07:08,966 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:08,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:08,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1084870916, now seen corresponding path program 1 times [2024-12-02 13:07:08,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:08,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385596433] [2024-12-02 13:07:08,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:08,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:09,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:09,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:09,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385596433] [2024-12-02 13:07:09,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385596433] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:09,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:09,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:07:09,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044407380] [2024-12-02 13:07:09,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:09,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:07:09,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:09,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:07:09,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:07:09,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-12-02 13:07:09,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 179 transitions, 1724 flow. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-12-02 13:07:09,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:09,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-12-02 13:07:09,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:09,954 INFO L124 PetriNetUnfolderBase]: 2827/5962 cut-off events. [2024-12-02 13:07:09,954 INFO L125 PetriNetUnfolderBase]: For 16528/16844 co-relation queries the response was YES. [2024-12-02 13:07:09,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21810 conditions, 5962 events. 2827/5962 cut-off events. For 16528/16844 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 41327 event pairs, 400 based on Foata normal form. 316/6261 useless extension candidates. Maximal degree in co-relation 21761. Up to 1255 conditions per place. [2024-12-02 13:07:09,991 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 322 selfloop transitions, 208 changer transitions 0/548 dead transitions. [2024-12-02 13:07:09,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 548 transitions, 5906 flow [2024-12-02 13:07:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:07:09,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 13:07:09,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 256 transitions. [2024-12-02 13:07:09,993 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.624390243902439 [2024-12-02 13:07:09,993 INFO L175 Difference]: Start difference. First operand has 117 places, 179 transitions, 1724 flow. Second operand 10 states and 256 transitions. [2024-12-02 13:07:09,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 548 transitions, 5906 flow [2024-12-02 13:07:10,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 548 transitions, 5221 flow, removed 307 selfloop flow, removed 6 redundant places. [2024-12-02 13:07:10,059 INFO L231 Difference]: Finished difference. Result has 127 places, 367 transitions, 3991 flow [2024-12-02 13:07:10,060 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=1525, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3991, PETRI_PLACES=127, PETRI_TRANSITIONS=367} [2024-12-02 13:07:10,060 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 89 predicate places. [2024-12-02 13:07:10,060 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 367 transitions, 3991 flow [2024-12-02 13:07:10,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 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) [2024-12-02 13:07:10,061 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:10,061 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:10,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 13:07:10,061 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:10,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:10,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1838437790, now seen corresponding path program 2 times [2024-12-02 13:07:10,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:10,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383342181] [2024-12-02 13:07:10,062 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:10,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:10,073 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:07:10,073 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:10,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:10,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:10,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383342181] [2024-12-02 13:07:10,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383342181] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:10,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:10,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:07:10,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305517587] [2024-12-02 13:07:10,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:10,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:07:10,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:10,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:07:10,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:07:10,247 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-12-02 13:07:10,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 367 transitions, 3991 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2024-12-02 13:07:10,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:10,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-12-02 13:07:10,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:11,604 INFO L124 PetriNetUnfolderBase]: 4098/8388 cut-off events. [2024-12-02 13:07:11,604 INFO L125 PetriNetUnfolderBase]: For 36157/36531 co-relation queries the response was YES. [2024-12-02 13:07:11,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34707 conditions, 8388 events. 4098/8388 cut-off events. For 36157/36531 co-relation queries the response was YES. Maximal size of possible extension queue 188. Compared 60626 event pairs, 929 based on Foata normal form. 353/8695 useless extension candidates. Maximal degree in co-relation 34654. Up to 4475 conditions per place. [2024-12-02 13:07:11,645 INFO L140 encePairwiseOnDemand]: 27/41 looper letters, 480 selfloop transitions, 205 changer transitions 1/700 dead transitions. [2024-12-02 13:07:11,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 700 transitions, 8359 flow [2024-12-02 13:07:11,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 13:07:11,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-12-02 13:07:11,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 360 transitions. [2024-12-02 13:07:11,647 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-12-02 13:07:11,647 INFO L175 Difference]: Start difference. First operand has 127 places, 367 transitions, 3991 flow. Second operand 18 states and 360 transitions. [2024-12-02 13:07:11,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 700 transitions, 8359 flow [2024-12-02 13:07:11,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 700 transitions, 8333 flow, removed 13 selfloop flow, removed 0 redundant places. [2024-12-02 13:07:11,855 INFO L231 Difference]: Finished difference. Result has 158 places, 527 transitions, 6771 flow [2024-12-02 13:07:11,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=3969, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6771, PETRI_PLACES=158, PETRI_TRANSITIONS=527} [2024-12-02 13:07:11,856 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 120 predicate places. [2024-12-02 13:07:11,856 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 527 transitions, 6771 flow [2024-12-02 13:07:11,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2024-12-02 13:07:11,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:11,856 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:11,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 13:07:11,856 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:11,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1334890082, now seen corresponding path program 3 times [2024-12-02 13:07:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:11,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860030940] [2024-12-02 13:07:11,857 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:07:11,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:11,868 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 13:07:11,868 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:12,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:12,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:12,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860030940] [2024-12-02 13:07:12,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860030940] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:12,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:12,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:07:12,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739660474] [2024-12-02 13:07:12,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:12,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:07:12,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:12,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:07:12,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:07:12,098 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-12-02 13:07:12,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 527 transitions, 6771 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2024-12-02 13:07:12,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:12,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-12-02 13:07:12,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:14,025 INFO L124 PetriNetUnfolderBase]: 5010/10336 cut-off events. [2024-12-02 13:07:14,025 INFO L125 PetriNetUnfolderBase]: For 73379/73874 co-relation queries the response was YES. [2024-12-02 13:07:14,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48088 conditions, 10336 events. 5010/10336 cut-off events. For 73379/73874 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 78949 event pairs, 1256 based on Foata normal form. 547/10844 useless extension candidates. Maximal degree in co-relation 48019. Up to 5491 conditions per place. [2024-12-02 13:07:14,095 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 603 selfloop transitions, 248 changer transitions 2/867 dead transitions. [2024-12-02 13:07:14,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 867 transitions, 12110 flow [2024-12-02 13:07:14,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:07:14,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-12-02 13:07:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 320 transitions. [2024-12-02 13:07:14,097 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2024-12-02 13:07:14,097 INFO L175 Difference]: Start difference. First operand has 158 places, 527 transitions, 6771 flow. Second operand 16 states and 320 transitions. [2024-12-02 13:07:14,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 867 transitions, 12110 flow [2024-12-02 13:07:14,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 867 transitions, 11992 flow, removed 56 selfloop flow, removed 1 redundant places. [2024-12-02 13:07:14,389 INFO L231 Difference]: Finished difference. Result has 180 places, 666 transitions, 9760 flow [2024-12-02 13:07:14,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=6675, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=9760, PETRI_PLACES=180, PETRI_TRANSITIONS=666} [2024-12-02 13:07:14,390 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 142 predicate places. [2024-12-02 13:07:14,390 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 666 transitions, 9760 flow [2024-12-02 13:07:14,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2024-12-02 13:07:14,390 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:14,391 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:14,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 13:07:14,391 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:14,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:14,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1862326791, now seen corresponding path program 1 times [2024-12-02 13:07:14,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:14,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592169699] [2024-12-02 13:07:14,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:14,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 13:07:14,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:14,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592169699] [2024-12-02 13:07:14,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592169699] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:14,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:14,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:07:14,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757793596] [2024-12-02 13:07:14,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:14,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:07:14,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:14,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:07:14,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:07:14,431 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-12-02 13:07:14,431 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 666 transitions, 9760 flow. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-12-02 13:07:14,431 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:14,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-12-02 13:07:14,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:16,446 INFO L124 PetriNetUnfolderBase]: 4598/9784 cut-off events. [2024-12-02 13:07:16,446 INFO L125 PetriNetUnfolderBase]: For 82766/83304 co-relation queries the response was YES. [2024-12-02 13:07:16,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47681 conditions, 9784 events. 4598/9784 cut-off events. For 82766/83304 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 76103 event pairs, 1034 based on Foata normal form. 705/10383 useless extension candidates. Maximal degree in co-relation 47603. Up to 4740 conditions per place. [2024-12-02 13:07:16,533 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 689 selfloop transitions, 126 changer transitions 0/839 dead transitions. [2024-12-02 13:07:16,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 839 transitions, 13855 flow [2024-12-02 13:07:16,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:07:16,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 13:07:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2024-12-02 13:07:16,534 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6524390243902439 [2024-12-02 13:07:16,534 INFO L175 Difference]: Start difference. First operand has 180 places, 666 transitions, 9760 flow. Second operand 4 states and 107 transitions. [2024-12-02 13:07:16,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 839 transitions, 13855 flow [2024-12-02 13:07:16,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 839 transitions, 13534 flow, removed 128 selfloop flow, removed 7 redundant places. [2024-12-02 13:07:16,815 INFO L231 Difference]: Finished difference. Result has 178 places, 673 transitions, 10140 flow [2024-12-02 13:07:16,815 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=9117, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=10140, PETRI_PLACES=178, PETRI_TRANSITIONS=673} [2024-12-02 13:07:16,815 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 140 predicate places. [2024-12-02 13:07:16,815 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 673 transitions, 10140 flow [2024-12-02 13:07:16,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-12-02 13:07:16,816 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:16,816 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:16,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 13:07:16,816 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:16,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:16,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1897555246, now seen corresponding path program 1 times [2024-12-02 13:07:16,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:16,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506956560] [2024-12-02 13:07:16,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:16,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:16,861 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:16,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:16,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506956560] [2024-12-02 13:07:16,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506956560] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:16,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743517723] [2024-12-02 13:07:16,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:16,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:16,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:16,863 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:16,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:07:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:16,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:07:16,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:16,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:07:16,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743517723] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:16,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:16,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-12-02 13:07:16,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298585154] [2024-12-02 13:07:16,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:16,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:07:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:16,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:07:16,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:07:16,990 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-12-02 13:07:16,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 673 transitions, 10140 flow. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2024-12-02 13:07:16,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:16,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-12-02 13:07:16,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:18,922 INFO L124 PetriNetUnfolderBase]: 4689/9799 cut-off events. [2024-12-02 13:07:18,922 INFO L125 PetriNetUnfolderBase]: For 89081/89609 co-relation queries the response was YES. [2024-12-02 13:07:18,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50746 conditions, 9799 events. 4689/9799 cut-off events. For 89081/89609 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 74963 event pairs, 1267 based on Foata normal form. 611/10141 useless extension candidates. Maximal degree in co-relation 50668. Up to 5911 conditions per place. [2024-12-02 13:07:18,991 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 752 selfloop transitions, 89 changer transitions 28/894 dead transitions. [2024-12-02 13:07:18,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 894 transitions, 14889 flow [2024-12-02 13:07:18,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:07:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 13:07:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-12-02 13:07:18,992 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6341463414634146 [2024-12-02 13:07:18,992 INFO L175 Difference]: Start difference. First operand has 178 places, 673 transitions, 10140 flow. Second operand 6 states and 156 transitions. [2024-12-02 13:07:18,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 894 transitions, 14889 flow [2024-12-02 13:07:19,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 894 transitions, 14867 flow, removed 11 selfloop flow, removed 0 redundant places. [2024-12-02 13:07:19,320 INFO L231 Difference]: Finished difference. Result has 182 places, 672 transitions, 10292 flow [2024-12-02 13:07:19,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=10114, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=10292, PETRI_PLACES=182, PETRI_TRANSITIONS=672} [2024-12-02 13:07:19,321 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 144 predicate places. [2024-12-02 13:07:19,321 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 672 transitions, 10292 flow [2024-12-02 13:07:19,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 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) [2024-12-02 13:07:19,321 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:19,321 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:19,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:07:19,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 13:07:19,522 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:19,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:19,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1305329909, now seen corresponding path program 1 times [2024-12-02 13:07:19,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:19,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604981174] [2024-12-02 13:07:19,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:19,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:19,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:19,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604981174] [2024-12-02 13:07:19,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604981174] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:19,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780990976] [2024-12-02 13:07:19,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:19,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:19,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:19,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:19,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:07:19,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:19,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:07:19,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:19,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:19,737 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:19,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780990976] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:07:19,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 13:07:19,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-12-02 13:07:19,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281610319] [2024-12-02 13:07:19,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:19,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 13:07:19,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:19,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 13:07:19,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:07:19,748 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2024-12-02 13:07:19,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 672 transitions, 10292 flow. Second operand has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 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) [2024-12-02 13:07:19,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:19,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2024-12-02 13:07:19,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:26,173 INFO L124 PetriNetUnfolderBase]: 14575/29769 cut-off events. [2024-12-02 13:07:26,173 INFO L125 PetriNetUnfolderBase]: For 273950/275590 co-relation queries the response was YES. [2024-12-02 13:07:26,340 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156232 conditions, 29769 events. 14575/29769 cut-off events. For 273950/275590 co-relation queries the response was YES. Maximal size of possible extension queue 610. Compared 261393 event pairs, 2989 based on Foata normal form. 1767/31371 useless extension candidates. Maximal degree in co-relation 156153. Up to 8358 conditions per place. [2024-12-02 13:07:26,423 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 2028 selfloop transitions, 216 changer transitions 0/2269 dead transitions. [2024-12-02 13:07:26,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 2269 transitions, 38441 flow [2024-12-02 13:07:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:07:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-02 13:07:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 284 transitions. [2024-12-02 13:07:26,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6926829268292682 [2024-12-02 13:07:26,425 INFO L175 Difference]: Start difference. First operand has 182 places, 672 transitions, 10292 flow. Second operand 10 states and 284 transitions. [2024-12-02 13:07:26,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 2269 transitions, 38441 flow [2024-12-02 13:07:27,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 2269 transitions, 38374 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-12-02 13:07:27,702 INFO L231 Difference]: Finished difference. Result has 190 places, 869 transitions, 13749 flow [2024-12-02 13:07:27,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=10234, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=13749, PETRI_PLACES=190, PETRI_TRANSITIONS=869} [2024-12-02 13:07:27,703 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 152 predicate places. [2024-12-02 13:07:27,703 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 869 transitions, 13749 flow [2024-12-02 13:07:27,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.583333333333332) internal successors, (199), 12 states have internal predecessors, (199), 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) [2024-12-02 13:07:27,703 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:27,703 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:27,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:07:27,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3e91-81db-4c0a-98ae-344c3e74ffdd/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:27,904 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:27,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:27,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1495972510, now seen corresponding path program 1 times [2024-12-02 13:07:27,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:27,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836870810] [2024-12-02 13:07:27,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:27,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:28,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:28,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:28,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836870810] [2024-12-02 13:07:28,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836870810] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:28,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:28,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 13:07:28,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901218217] [2024-12-02 13:07:28,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:28,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:07:28,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:28,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:07:28,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:07:28,293 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-12-02 13:07:28,294 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 869 transitions, 13749 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:07:28,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:28,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-12-02 13:07:28,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:07:39,393 INFO L124 PetriNetUnfolderBase]: 22479/45422 cut-off events. [2024-12-02 13:07:39,394 INFO L125 PetriNetUnfolderBase]: For 497740/499062 co-relation queries the response was YES. [2024-12-02 13:07:39,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246147 conditions, 45422 events. 22479/45422 cut-off events. For 497740/499062 co-relation queries the response was YES. Maximal size of possible extension queue 880. Compared 423762 event pairs, 6526 based on Foata normal form. 1791/47002 useless extension candidates. Maximal degree in co-relation 246066. Up to 28188 conditions per place. [2024-12-02 13:07:39,871 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 1050 selfloop transitions, 395 changer transitions 1/1459 dead transitions. [2024-12-02 13:07:39,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 1459 transitions, 24795 flow [2024-12-02 13:07:39,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-12-02 13:07:39,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-12-02 13:07:39,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 495 transitions. [2024-12-02 13:07:39,873 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4643527204502814 [2024-12-02 13:07:39,873 INFO L175 Difference]: Start difference. First operand has 190 places, 869 transitions, 13749 flow. Second operand 26 states and 495 transitions. [2024-12-02 13:07:39,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 1459 transitions, 24795 flow [2024-12-02 13:07:43,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 1459 transitions, 24713 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-12-02 13:07:43,939 INFO L231 Difference]: Finished difference. Result has 225 places, 1207 transitions, 21086 flow [2024-12-02 13:07:43,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=13658, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=21086, PETRI_PLACES=225, PETRI_TRANSITIONS=1207} [2024-12-02 13:07:43,940 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 187 predicate places. [2024-12-02 13:07:43,940 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 1207 transitions, 21086 flow [2024-12-02 13:07:43,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:07:43,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:07:43,940 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:43,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 13:07:43,940 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:07:43,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:43,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1032682458, now seen corresponding path program 2 times [2024-12-02 13:07:43,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:43,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853828832] [2024-12-02 13:07:43,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:43,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:43,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:07:43,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:07:44,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:44,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853828832] [2024-12-02 13:07:44,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853828832] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:07:44,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:07:44,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-12-02 13:07:44,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809393989] [2024-12-02 13:07:44,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:07:44,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:07:44,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:44,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:07:44,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:07:44,388 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2024-12-02 13:07:44,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 1207 transitions, 21086 flow. Second operand has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:07:44,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:07:44,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2024-12-02 13:07:44,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:08:01,534 INFO L124 PetriNetUnfolderBase]: 28615/58311 cut-off events. [2024-12-02 13:08:01,534 INFO L125 PetriNetUnfolderBase]: For 809987/811470 co-relation queries the response was YES. [2024-12-02 13:08:01,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339644 conditions, 58311 events. 28615/58311 cut-off events. For 809987/811470 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 569729 event pairs, 7434 based on Foata normal form. 2071/60090 useless extension candidates. Maximal degree in co-relation 339548. Up to 38309 conditions per place. [2024-12-02 13:08:02,171 INFO L140 encePairwiseOnDemand]: 26/41 looper letters, 1336 selfloop transitions, 439 changer transitions 1/1789 dead transitions. [2024-12-02 13:08:02,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 1789 transitions, 33531 flow [2024-12-02 13:08:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:08:02,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-12-02 13:08:02,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 445 transitions. [2024-12-02 13:08:02,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4933481152993348 [2024-12-02 13:08:02,173 INFO L175 Difference]: Start difference. First operand has 225 places, 1207 transitions, 21086 flow. Second operand 22 states and 445 transitions. [2024-12-02 13:08:02,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 1789 transitions, 33531 flow [2024-12-02 13:08:10,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 1789 transitions, 33158 flow, removed 61 selfloop flow, removed 13 redundant places. [2024-12-02 13:08:10,630 INFO L231 Difference]: Finished difference. Result has 247 places, 1541 transitions, 28908 flow [2024-12-02 13:08:10,630 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=20571, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=838, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=28908, PETRI_PLACES=247, PETRI_TRANSITIONS=1541} [2024-12-02 13:08:10,631 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 209 predicate places. [2024-12-02 13:08:10,631 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 1541 transitions, 28908 flow [2024-12-02 13:08:10,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.571428571428571) internal successors, (176), 14 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:08:10,631 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:08:10,631 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:08:10,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 13:08:10,631 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:08:10,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:08:10,632 INFO L85 PathProgramCache]: Analyzing trace with hash -349537712, now seen corresponding path program 3 times [2024-12-02 13:08:10,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:08:10,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646791773] [2024-12-02 13:08:10,632 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:08:10,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:08:10,645 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-12-02 13:08:10,645 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:08:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:08:10,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:08:10,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646791773] [2024-12-02 13:08:10,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646791773] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:08:10,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:08:10,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 13:08:10,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428608947] [2024-12-02 13:08:10,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:08:10,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:08:10,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:08:10,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:08:10,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:08:10,791 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-12-02 13:08:10,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 1541 transitions, 28908 flow. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2024-12-02 13:08:10,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:08:10,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-12-02 13:08:10,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:08:38,965 INFO L124 PetriNetUnfolderBase]: 42034/83803 cut-off events. [2024-12-02 13:08:38,965 INFO L125 PetriNetUnfolderBase]: For 1401867/1403294 co-relation queries the response was YES. [2024-12-02 13:08:39,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519141 conditions, 83803 events. 42034/83803 cut-off events. For 1401867/1403294 co-relation queries the response was YES. Maximal size of possible extension queue 1550. Compared 836968 event pairs, 5186 based on Foata normal form. 1784/85334 useless extension candidates. Maximal degree in co-relation 519034. Up to 32367 conditions per place. [2024-12-02 13:08:39,989 INFO L140 encePairwiseOnDemand]: 29/41 looper letters, 1454 selfloop transitions, 1557 changer transitions 1/3024 dead transitions. [2024-12-02 13:08:39,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 3024 transitions, 62884 flow [2024-12-02 13:08:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 13:08:39,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-12-02 13:08:39,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 331 transitions. [2024-12-02 13:08:39,990 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5382113821138211 [2024-12-02 13:08:39,990 INFO L175 Difference]: Start difference. First operand has 247 places, 1541 transitions, 28908 flow. Second operand 15 states and 331 transitions. [2024-12-02 13:08:39,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 3024 transitions, 62884 flow [2024-12-02 13:09:00,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 3024 transitions, 62138 flow, removed 345 selfloop flow, removed 7 redundant places. [2024-12-02 13:09:00,638 INFO L231 Difference]: Finished difference. Result has 266 places, 2592 transitions, 56621 flow [2024-12-02 13:09:00,639 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=28388, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=558, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=56621, PETRI_PLACES=266, PETRI_TRANSITIONS=2592} [2024-12-02 13:09:00,639 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 228 predicate places. [2024-12-02 13:09:00,639 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 2592 transitions, 56621 flow [2024-12-02 13:09:00,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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) [2024-12-02 13:09:00,640 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:09:00,640 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:09:00,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 13:09:00,640 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:09:00,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:09:00,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1447544748, now seen corresponding path program 4 times [2024-12-02 13:09:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:09:00,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100033186] [2024-12-02 13:09:00,640 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:09:00,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:09:00,652 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:09:00,652 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:09:00,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 13:09:00,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:09:00,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100033186] [2024-12-02 13:09:00,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100033186] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:09:00,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:09:00,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 13:09:00,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030307783] [2024-12-02 13:09:00,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:09:00,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 13:09:00,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:09:00,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 13:09:00,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 13:09:00,743 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2024-12-02 13:09:00,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 2592 transitions, 56621 flow. Second operand has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:09:00,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:09:00,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2024-12-02 13:09:00,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:09:43,681 INFO L124 PetriNetUnfolderBase]: 41096/86332 cut-off events. [2024-12-02 13:09:43,681 INFO L125 PetriNetUnfolderBase]: For 1782991/1788495 co-relation queries the response was YES. [2024-12-02 13:09:44,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578691 conditions, 86332 events. 41096/86332 cut-off events. For 1782991/1788495 co-relation queries the response was YES. Maximal size of possible extension queue 1729. Compared 920165 event pairs, 3678 based on Foata normal form. 3859/89798 useless extension candidates. Maximal degree in co-relation 578573. Up to 35371 conditions per place. [2024-12-02 13:09:45,036 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 1809 selfloop transitions, 1570 changer transitions 4/3418 dead transitions. [2024-12-02 13:09:45,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 3418 transitions, 79604 flow [2024-12-02 13:09:45,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:09:45,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-02 13:09:45,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 199 transitions. [2024-12-02 13:09:45,037 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6067073170731707 [2024-12-02 13:09:45,037 INFO L175 Difference]: Start difference. First operand has 266 places, 2592 transitions, 56621 flow. Second operand 8 states and 199 transitions. [2024-12-02 13:09:45,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 3418 transitions, 79604 flow [2024-12-02 13:10:14,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 3418 transitions, 78710 flow, removed 447 selfloop flow, removed 0 redundant places. [2024-12-02 13:10:14,536 INFO L231 Difference]: Finished difference. Result has 276 places, 2774 transitions, 63482 flow [2024-12-02 13:10:14,537 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=55789, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1386, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=63482, PETRI_PLACES=276, PETRI_TRANSITIONS=2774} [2024-12-02 13:10:14,537 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 238 predicate places. [2024-12-02 13:10:14,538 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 2774 transitions, 63482 flow [2024-12-02 13:10:14,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.142857142857142) internal successors, (127), 7 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 13:10:14,538 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:10:14,538 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:10:14,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:10:14,538 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:10:14,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:10:14,538 INFO L85 PathProgramCache]: Analyzing trace with hash 202265426, now seen corresponding path program 5 times [2024-12-02 13:10:14,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:10:14,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338898079] [2024-12-02 13:10:14,539 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 13:10:14,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:10:14,550 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 13:10:14,550 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:10:14,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:10:14,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:10:14,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338898079] [2024-12-02 13:10:14,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338898079] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:10:14,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:10:14,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:10:14,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241632908] [2024-12-02 13:10:14,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:10:14,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:10:14,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:10:14,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:10:14,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:10:14,731 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-12-02 13:10:14,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 2774 transitions, 63482 flow. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 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) [2024-12-02 13:10:14,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:10:14,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-12-02 13:10:14,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 13:12:01,518 INFO L124 PetriNetUnfolderBase]: 89884/179180 cut-off events. [2024-12-02 13:12:01,518 INFO L125 PetriNetUnfolderBase]: For 3993616/3996513 co-relation queries the response was YES. [2024-12-02 13:12:03,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1287883 conditions, 179180 events. 89884/179180 cut-off events. For 3993616/3996513 co-relation queries the response was YES. Maximal size of possible extension queue 3270. Compared 1992022 event pairs, 6462 based on Foata normal form. 4025/182820 useless extension candidates. Maximal degree in co-relation 1287761. Up to 41980 conditions per place. [2024-12-02 13:12:04,297 INFO L140 encePairwiseOnDemand]: 24/41 looper letters, 4628 selfloop transitions, 5339 changer transitions 5/9983 dead transitions. [2024-12-02 13:12:04,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 9983 transitions, 254130 flow [2024-12-02 13:12:04,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 13:12:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-12-02 13:12:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 606 transitions. [2024-12-02 13:12:04,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46189024390243905 [2024-12-02 13:12:04,299 INFO L175 Difference]: Start difference. First operand has 276 places, 2774 transitions, 63482 flow. Second operand 32 states and 606 transitions. [2024-12-02 13:12:04,299 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 9983 transitions, 254130 flow [2024-12-02 13:14:34,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 9983 transitions, 251820 flow, removed 1155 selfloop flow, removed 0 redundant places. [2024-12-02 13:14:35,076 INFO L231 Difference]: Finished difference. Result has 332 places, 7677 transitions, 206468 flow [2024-12-02 13:14:35,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=63054, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2774, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1215, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=206468, PETRI_PLACES=332, PETRI_TRANSITIONS=7677} [2024-12-02 13:14:35,078 INFO L279 CegarLoopForPetriNet]: 38 programPoint places, 294 predicate places. [2024-12-02 13:14:35,078 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 7677 transitions, 206468 flow [2024-12-02 13:14:35,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 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) [2024-12-02 13:14:35,078 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 13:14:35,078 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:14:35,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 13:14:35,078 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-12-02 13:14:35,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:14:35,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2108523190, now seen corresponding path program 6 times [2024-12-02 13:14:35,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:14:35,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846942613] [2024-12-02 13:14:35,079 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 13:14:35,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:14:35,088 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-12-02 13:14:35,088 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:14:35,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 13:14:35,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:14:35,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846942613] [2024-12-02 13:14:35,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846942613] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:14:35,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:14:35,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 13:14:35,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512316317] [2024-12-02 13:14:35,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:14:35,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:14:35,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:14:35,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:14:35,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:14:35,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 41 [2024-12-02 13:14:35,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 7677 transitions, 206468 flow. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 10 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) [2024-12-02 13:14:35,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 13:14:35,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 41 [2024-12-02 13:14:35,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand