./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c --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_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/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_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/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_189d78a7-456c-4148-97a8-fd3741144b22/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 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 22:58:16,975 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 22:58:17,024 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-01 22:58:17,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 22:58:17,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 22:58:17,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 22:58:17,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 22:58:17,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 22:58:17,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 22:58:17,048 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 22:58:17,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 22:58:17,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 22:58:17,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 22:58:17,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 22:58:17,049 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 22:58:17,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 22:58:17,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 22:58:17,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 22:58:17,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 22:58:17,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 22:58:17,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 22:58:17,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 22:58:17,050 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 22:58:17,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 22:58:17,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 22:58:17,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 22:58:17,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:58:17,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 22:58:17,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 22:58:17,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 22:58:17,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 22:58:17,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:58:17,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 22:58:17,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 22:58:17,052 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_189d78a7-456c-4148-97a8-fd3741144b22/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 -> 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 [2024-12-01 22:58:17,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 22:58:17,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 22:58:17,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 22:58:17,279 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 22:58:17,279 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 22:58:17,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2024-12-01 22:58:19,952 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/data/1c671b5a7/7fb6920ba8994943aefa0c0ccd404495/FLAGe991f44af [2024-12-01 22:58:20,185 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 22:58:20,185 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2024-12-01 22:58:20,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/data/1c671b5a7/7fb6920ba8994943aefa0c0ccd404495/FLAGe991f44af [2024-12-01 22:58:20,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/data/1c671b5a7/7fb6920ba8994943aefa0c0ccd404495 [2024-12-01 22:58:20,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 22:58:20,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 22:58:20,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 22:58:20,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 22:58:20,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 22:58:20,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240adb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20, skipping insertion in model container [2024-12-01 22:58:20,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,237 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 22:58:20,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 22:58:20,418 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 22:58:20,450 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 22:58:20,465 INFO L204 MainTranslator]: Completed translation [2024-12-01 22:58:20,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20 WrapperNode [2024-12-01 22:58:20,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 22:58:20,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 22:58:20,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 22:58:20,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 22:58:20,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,483 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,512 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 495 [2024-12-01 22:58:20,512 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 22:58:20,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 22:58:20,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 22:58:20,513 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 22:58:20,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,544 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [2, 18]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-12-01 22:58:20,544 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,544 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,555 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,557 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,561 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,564 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,566 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 22:58:20,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 22:58:20,567 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 22:58:20,567 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 22:58:20,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (1/1) ... [2024-12-01 22:58:20,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 22:58:20,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:58:20,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 22:58:20,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 22:58:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 22:58:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-12-01 22:58:20,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-12-01 22:58:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-12-01 22:58:20,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-12-01 22:58:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 22:58:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-01 22:58:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-01 22:58:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-01 22:58:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-01 22:58:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 22:58:20,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 22:58:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-01 22:58:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-01 22:58:20,618 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-01 22:58:20,724 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 22:58:20,726 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 22:58:21,390 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-01 22:58:21,391 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 22:58:21,853 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 22:58:21,853 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-01 22:58:21,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:58:21 BoogieIcfgContainer [2024-12-01 22:58:21,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 22:58:21,855 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 22:58:21,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 22:58:21,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 22:58:21,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:58:20" (1/3) ... [2024-12-01 22:58:21,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2f8c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:58:21, skipping insertion in model container [2024-12-01 22:58:21,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:58:20" (2/3) ... [2024-12-01 22:58:21,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e2f8c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:58:21, skipping insertion in model container [2024-12-01 22:58:21,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:58:21" (3/3) ... [2024-12-01 22:58:21,861 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2024-12-01 22:58:21,871 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 22:58:21,872 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-symm.wvr.c that has 3 procedures, 144 locations, 1 initial locations, 4 loop locations, and 42 error locations. [2024-12-01 22:58:21,872 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-01 22:58:21,988 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-12-01 22:58:22,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 169 transitions, 352 flow [2024-12-01 22:58:22,085 INFO L124 PetriNetUnfolderBase]: 26/167 cut-off events. [2024-12-01 22:58:22,087 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-12-01 22:58:22,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 26/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 836 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2024-12-01 22:58:22,094 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 169 transitions, 352 flow [2024-12-01 22:58:22,100 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 166 transitions, 344 flow [2024-12-01 22:58:22,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 22:58:22,119 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;@4bc838e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 22:58:22,119 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-12-01 22:58:22,122 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-01 22:58:22,123 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-12-01 22:58:22,123 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-01 22:58:22,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:22,123 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-12-01 22:58:22,124 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:22,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:22,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1513319, now seen corresponding path program 1 times [2024-12-01 22:58:22,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:22,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854978407] [2024-12-01 22:58:22,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:58:22,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:22,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854978407] [2024-12-01 22:58:22,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854978407] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:22,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:22,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 22:58:22,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352058847] [2024-12-01 22:58:22,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:22,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:22,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:22,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:22,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:22,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:22,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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) [2024-12-01 22:58:22,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:22,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:22,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:23,406 INFO L124 PetriNetUnfolderBase]: 2890/6519 cut-off events. [2024-12-01 22:58:23,407 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-12-01 22:58:23,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10784 conditions, 6519 events. 2890/6519 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 58763 event pairs, 1812 based on Foata normal form. 4/5189 useless extension candidates. Maximal degree in co-relation 10584. Up to 4183 conditions per place. [2024-12-01 22:58:23,449 INFO L140 encePairwiseOnDemand]: 154/169 looper letters, 79 selfloop transitions, 7 changer transitions 2/168 dead transitions. [2024-12-01 22:58:23,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 168 transitions, 522 flow [2024-12-01 22:58:23,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:23,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-12-01 22:58:23,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2024-12-01 22:58:23,467 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 344 flow. Second operand 4 states and 427 transitions. [2024-12-01 22:58:23,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 168 transitions, 522 flow [2024-12-01 22:58:23,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 168 transitions, 514 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-01 22:58:23,479 INFO L231 Difference]: Finished difference. Result has 147 places, 166 transitions, 383 flow [2024-12-01 22:58:23,482 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=147, PETRI_TRANSITIONS=166} [2024-12-01 22:58:23,485 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-12-01 22:58:23,486 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 166 transitions, 383 flow [2024-12-01 22:58:23,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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) [2024-12-01 22:58:23,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:23,486 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-12-01 22:58:23,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 22:58:23,487 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:23,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:23,487 INFO L85 PathProgramCache]: Analyzing trace with hash 2135112273, now seen corresponding path program 1 times [2024-12-01 22:58:23,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:23,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111791614] [2024-12-01 22:58:23,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:23,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:58:23,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:23,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111791614] [2024-12-01 22:58:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111791614] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:58:23,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069996642] [2024-12-01 22:58:23,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:23,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:23,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:58:23,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:58:23,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 22:58:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:23,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 22:58:23,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:58:23,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:58:23,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:58:23,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069996642] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:23,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:58:23,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-01 22:58:23,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665466495] [2024-12-01 22:58:23,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:23,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 22:58:23,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:23,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 22:58:23,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-01 22:58:23,819 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:23,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2024-12-01 22:58:23,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:23,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:23,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:24,704 INFO L124 PetriNetUnfolderBase]: 2890/6515 cut-off events. [2024-12-01 22:58:24,704 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-12-01 22:58:24,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10750 conditions, 6515 events. 2890/6515 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 58714 event pairs, 1812 based on Foata normal form. 2/5186 useless extension candidates. Maximal degree in co-relation 10700. Up to 4172 conditions per place. [2024-12-01 22:58:24,751 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 72 selfloop transitions, 12 changer transitions 0/164 dead transitions. [2024-12-01 22:58:24,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 164 transitions, 543 flow [2024-12-01 22:58:24,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 22:58:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 22:58:24,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2024-12-01 22:58:24,754 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5759368836291914 [2024-12-01 22:58:24,755 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 383 flow. Second operand 6 states and 584 transitions. [2024-12-01 22:58:24,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 164 transitions, 543 flow [2024-12-01 22:58:24,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 164 transitions, 543 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-01 22:58:24,759 INFO L231 Difference]: Finished difference. Result has 148 places, 164 transitions, 399 flow [2024-12-01 22:58:24,760 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=148, PETRI_TRANSITIONS=164} [2024-12-01 22:58:24,760 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2024-12-01 22:58:24,760 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 164 transitions, 399 flow [2024-12-01 22:58:24,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2024-12-01 22:58:24,761 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:24,761 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-12-01 22:58:24,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 22:58:24,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:24,962 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:24,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:24,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1763972530, now seen corresponding path program 1 times [2024-12-01 22:58:24,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:24,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317030160] [2024-12-01 22:58:24,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:24,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:25,092 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:58:25,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:25,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317030160] [2024-12-01 22:58:25,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317030160] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:58:25,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897559351] [2024-12-01 22:58:25,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:25,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:25,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:58:25,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:58:25,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 22:58:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:25,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 22:58:25,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:58:25,220 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:58:25,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 22:58:25,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:58:25,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897559351] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 22:58:25,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 22:58:25,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-12-01 22:58:25,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108791411] [2024-12-01 22:58:25,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 22:58:25,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-01 22:58:25,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:25,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-01 22:58:25,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-12-01 22:58:25,305 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:25,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 164 transitions, 399 flow. Second operand has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 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) [2024-12-01 22:58:25,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:25,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:25,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:26,137 INFO L124 PetriNetUnfolderBase]: 2896/6539 cut-off events. [2024-12-01 22:58:26,137 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-12-01 22:58:26,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10844 conditions, 6539 events. 2896/6539 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 464. Compared 59007 event pairs, 1812 based on Foata normal form. 6/5213 useless extension candidates. Maximal degree in co-relation 10702. Up to 4183 conditions per place. [2024-12-01 22:58:26,171 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 77 selfloop transitions, 25 changer transitions 0/182 dead transitions. [2024-12-01 22:58:26,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 182 transitions, 717 flow [2024-12-01 22:58:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-01 22:58:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-12-01 22:58:26,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 938 transitions. [2024-12-01 22:58:26,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5550295857988166 [2024-12-01 22:58:26,175 INFO L175 Difference]: Start difference. First operand has 148 places, 164 transitions, 399 flow. Second operand 10 states and 938 transitions. [2024-12-01 22:58:26,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 182 transitions, 717 flow [2024-12-01 22:58:26,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 182 transitions, 659 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-12-01 22:58:26,180 INFO L231 Difference]: Finished difference. Result has 155 places, 182 transitions, 539 flow [2024-12-01 22:58:26,180 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=539, PETRI_PLACES=155, PETRI_TRANSITIONS=182} [2024-12-01 22:58:26,181 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-12-01 22:58:26,181 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 182 transitions, 539 flow [2024-12-01 22:58:26,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 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) [2024-12-01 22:58:26,181 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:26,181 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:26,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-01 22:58:26,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:26,382 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:26,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:26,383 INFO L85 PathProgramCache]: Analyzing trace with hash -997373709, now seen corresponding path program 1 times [2024-12-01 22:58:26,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:26,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536090605] [2024-12-01 22:58:26,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:26,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:26,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 22:58:26,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:26,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536090605] [2024-12-01 22:58:26,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536090605] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:26,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:26,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 22:58:26,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840855572] [2024-12-01 22:58:26,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:26,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 22:58:26,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:26,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 22:58:26,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 22:58:26,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 169 [2024-12-01 22:58:26,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 182 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-12-01 22:58:26,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:26,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 169 [2024-12-01 22:58:26,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:26,931 INFO L124 PetriNetUnfolderBase]: 2894/6537 cut-off events. [2024-12-01 22:58:26,931 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-12-01 22:58:26,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10849 conditions, 6537 events. 2894/6537 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 58796 event pairs, 1812 based on Foata normal form. 2/5209 useless extension candidates. Maximal degree in co-relation 10782. Up to 4192 conditions per place. [2024-12-01 22:58:26,954 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 91 selfloop transitions, 7 changer transitions 0/180 dead transitions. [2024-12-01 22:58:26,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 180 transitions, 725 flow [2024-12-01 22:58:26,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 22:58:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 22:58:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2024-12-01 22:58:26,956 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6765285996055227 [2024-12-01 22:58:26,956 INFO L175 Difference]: Start difference. First operand has 155 places, 182 transitions, 539 flow. Second operand 3 states and 343 transitions. [2024-12-01 22:58:26,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 180 transitions, 725 flow [2024-12-01 22:58:26,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 180 transitions, 695 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-12-01 22:58:26,960 INFO L231 Difference]: Finished difference. Result has 154 places, 180 transitions, 513 flow [2024-12-01 22:58:26,961 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=154, PETRI_TRANSITIONS=180} [2024-12-01 22:58:26,961 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2024-12-01 22:58:26,961 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 180 transitions, 513 flow [2024-12-01 22:58:26,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-12-01 22:58:26,962 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:26,962 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-12-01 22:58:26,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 22:58:26,962 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:26,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2107483172, now seen corresponding path program 2 times [2024-12-01 22:58:26,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:26,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042585575] [2024-12-01 22:58:26,963 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 22:58:26,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:26,975 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 22:58:26,975 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 22:58:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-01 22:58:27,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:27,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042585575] [2024-12-01 22:58:27,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042585575] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:58:27,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366416302] [2024-12-01 22:58:27,027 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 22:58:27,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:27,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:58:27,030 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:58:27,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-01 22:58:27,121 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 22:58:27,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 22:58:27,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-01 22:58:27,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:58:27,169 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-01 22:58:27,169 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 22:58:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-01 22:58:27,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366416302] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 22:58:27,218 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 22:58:27,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-12-01 22:58:27,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856256649] [2024-12-01 22:58:27,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 22:58:27,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-01 22:58:27,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:27,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-01 22:58:27,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-01 22:58:27,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:27,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 180 transitions, 513 flow. Second operand has 7 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 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) [2024-12-01 22:58:27,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:27,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:27,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:27,760 INFO L124 PetriNetUnfolderBase]: 2894/6535 cut-off events. [2024-12-01 22:58:27,760 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-12-01 22:58:27,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10829 conditions, 6535 events. 2894/6535 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 58819 event pairs, 1812 based on Foata normal form. 2/5208 useless extension candidates. Maximal degree in co-relation 10774. Up to 4174 conditions per place. [2024-12-01 22:58:27,799 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 73 selfloop transitions, 25 changer transitions 0/178 dead transitions. [2024-12-01 22:58:27,799 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 178 transitions, 689 flow [2024-12-01 22:58:27,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:27,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2024-12-01 22:58:27,802 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.606508875739645 [2024-12-01 22:58:27,802 INFO L175 Difference]: Start difference. First operand has 154 places, 180 transitions, 513 flow. Second operand 4 states and 410 transitions. [2024-12-01 22:58:27,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 178 transitions, 689 flow [2024-12-01 22:58:27,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 178 transitions, 655 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-12-01 22:58:27,808 INFO L231 Difference]: Finished difference. Result has 149 places, 178 transitions, 509 flow [2024-12-01 22:58:27,808 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=149, PETRI_TRANSITIONS=178} [2024-12-01 22:58:27,809 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 2 predicate places. [2024-12-01 22:58:27,809 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 178 transitions, 509 flow [2024-12-01 22:58:27,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 85.0) internal successors, (595), 7 states have internal predecessors, (595), 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) [2024-12-01 22:58:27,809 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:27,809 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:27,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-01 22:58:28,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:28,014 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:28,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:28,015 INFO L85 PathProgramCache]: Analyzing trace with hash -869807085, now seen corresponding path program 1 times [2024-12-01 22:58:28,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:28,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196035571] [2024-12-01 22:58:28,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:28,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:28,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-01 22:58:28,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:28,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196035571] [2024-12-01 22:58:28,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196035571] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:28,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:28,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:58:28,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702069471] [2024-12-01 22:58:28,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:28,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:28,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:28,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:28,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:28,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:58:28,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 178 transitions, 509 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2024-12-01 22:58:28,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:28,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:58:28,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:28,862 INFO L124 PetriNetUnfolderBase]: 4486/9423 cut-off events. [2024-12-01 22:58:28,862 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-12-01 22:58:28,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16155 conditions, 9423 events. 4486/9423 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 600. Compared 84568 event pairs, 1724 based on Foata normal form. 224/7784 useless extension candidates. Maximal degree in co-relation 16011. Up to 4017 conditions per place. [2024-12-01 22:58:28,892 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 176 selfloop transitions, 10 changer transitions 0/254 dead transitions. [2024-12-01 22:58:28,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 254 transitions, 1035 flow [2024-12-01 22:58:28,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2024-12-01 22:58:28,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6952662721893491 [2024-12-01 22:58:28,895 INFO L175 Difference]: Start difference. First operand has 149 places, 178 transitions, 509 flow. Second operand 4 states and 470 transitions. [2024-12-01 22:58:28,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 254 transitions, 1035 flow [2024-12-01 22:58:28,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 254 transitions, 985 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-01 22:58:28,898 INFO L231 Difference]: Finished difference. Result has 150 places, 182 transitions, 527 flow [2024-12-01 22:58:28,898 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=527, PETRI_PLACES=150, PETRI_TRANSITIONS=182} [2024-12-01 22:58:28,899 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 3 predicate places. [2024-12-01 22:58:28,899 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 182 transitions, 527 flow [2024-12-01 22:58:28,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2024-12-01 22:58:28,899 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:28,899 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:28,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 22:58:28,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:28,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:28,900 INFO L85 PathProgramCache]: Analyzing trace with hash -868790218, now seen corresponding path program 1 times [2024-12-01 22:58:28,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:28,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864147827] [2024-12-01 22:58:28,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:28,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-01 22:58:28,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:28,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864147827] [2024-12-01 22:58:28,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864147827] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:28,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:28,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 22:58:28,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18163607] [2024-12-01 22:58:28,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:28,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 22:58:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:28,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 22:58:28,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 22:58:28,977 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:28,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 182 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2024-12-01 22:58:28,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:28,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:28,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:29,884 INFO L124 PetriNetUnfolderBase]: 6063/13055 cut-off events. [2024-12-01 22:58:29,884 INFO L125 PetriNetUnfolderBase]: For 1751/1839 co-relation queries the response was YES. [2024-12-01 22:58:29,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24124 conditions, 13055 events. 6063/13055 cut-off events. For 1751/1839 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 120339 event pairs, 2691 based on Foata normal form. 157/11435 useless extension candidates. Maximal degree in co-relation 24003. Up to 5640 conditions per place. [2024-12-01 22:58:29,923 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 162 selfloop transitions, 2 changer transitions 0/240 dead transitions. [2024-12-01 22:58:29,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 240 transitions, 991 flow [2024-12-01 22:58:29,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 22:58:29,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 22:58:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2024-12-01 22:58:29,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7672583826429981 [2024-12-01 22:58:29,926 INFO L175 Difference]: Start difference. First operand has 150 places, 182 transitions, 527 flow. Second operand 3 states and 389 transitions. [2024-12-01 22:58:29,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 240 transitions, 991 flow [2024-12-01 22:58:29,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 240 transitions, 991 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-01 22:58:29,995 INFO L231 Difference]: Finished difference. Result has 153 places, 183 transitions, 545 flow [2024-12-01 22:58:29,995 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=545, PETRI_PLACES=153, PETRI_TRANSITIONS=183} [2024-12-01 22:58:29,996 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 6 predicate places. [2024-12-01 22:58:29,996 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 183 transitions, 545 flow [2024-12-01 22:58:29,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2024-12-01 22:58:29,996 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:29,996 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:29,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 22:58:29,996 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:29,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:29,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1194214179, now seen corresponding path program 1 times [2024-12-01 22:58:29,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:29,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163829962] [2024-12-01 22:58:29,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:29,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:30,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-01 22:58:30,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:30,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163829962] [2024-12-01 22:58:30,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163829962] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:58:30,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046739504] [2024-12-01 22:58:30,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:30,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:30,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:58:30,122 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:58:30,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-01 22:58:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:30,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 22:58:30,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:58:30,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-01 22:58:30,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 22:58:30,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-01 22:58:30,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046739504] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 22:58:30,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 22:58:30,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-12-01 22:58:30,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13786524] [2024-12-01 22:58:30,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 22:58:30,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 22:58:30,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:30,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 22:58:30,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-12-01 22:58:30,338 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:30,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 183 transitions, 545 flow. Second operand has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 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) [2024-12-01 22:58:30,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:30,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:30,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:31,348 INFO L124 PetriNetUnfolderBase]: 5447/12736 cut-off events. [2024-12-01 22:58:31,348 INFO L125 PetriNetUnfolderBase]: For 2047/2189 co-relation queries the response was YES. [2024-12-01 22:58:31,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22965 conditions, 12736 events. 5447/12736 cut-off events. For 2047/2189 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 124829 event pairs, 3559 based on Foata normal form. 79/10765 useless extension candidates. Maximal degree in co-relation 22854. Up to 7902 conditions per place. [2024-12-01 22:58:31,380 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 21 changer transitions 0/179 dead transitions. [2024-12-01 22:58:31,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 179 transitions, 723 flow [2024-12-01 22:58:31,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 22:58:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-01 22:58:31,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 671 transitions. [2024-12-01 22:58:31,382 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5672020287404903 [2024-12-01 22:58:31,382 INFO L175 Difference]: Start difference. First operand has 153 places, 183 transitions, 545 flow. Second operand 7 states and 671 transitions. [2024-12-01 22:58:31,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 179 transitions, 723 flow [2024-12-01 22:58:31,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 179 transitions, 721 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 22:58:31,397 INFO L231 Difference]: Finished difference. Result has 158 places, 179 transitions, 565 flow [2024-12-01 22:58:31,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=565, PETRI_PLACES=158, PETRI_TRANSITIONS=179} [2024-12-01 22:58:31,398 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-12-01 22:58:31,398 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 179 transitions, 565 flow [2024-12-01 22:58:31,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 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) [2024-12-01 22:58:31,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:31,399 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:31,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-01 22:58:31,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:31,599 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:31,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:31,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1253728163, now seen corresponding path program 2 times [2024-12-01 22:58:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:31,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037777533] [2024-12-01 22:58:31,600 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 22:58:31,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:31,614 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 22:58:31,614 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 22:58:31,645 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-01 22:58:31,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:31,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037777533] [2024-12-01 22:58:31,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037777533] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:31,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:31,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 22:58:31,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197521695] [2024-12-01 22:58:31,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:31,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:31,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:31,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:31,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:31,674 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:58:31,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 179 transitions, 565 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-12-01 22:58:31,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:31,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:58:31,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:32,597 INFO L124 PetriNetUnfolderBase]: 6293/14328 cut-off events. [2024-12-01 22:58:32,597 INFO L125 PetriNetUnfolderBase]: For 2312/2354 co-relation queries the response was YES. [2024-12-01 22:58:32,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26251 conditions, 14328 events. 6293/14328 cut-off events. For 2312/2354 co-relation queries the response was YES. Maximal size of possible extension queue 668. Compared 139579 event pairs, 3226 based on Foata normal form. 42/12083 useless extension candidates. Maximal degree in co-relation 26122. Up to 7089 conditions per place. [2024-12-01 22:58:32,633 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 132 selfloop transitions, 7 changer transitions 0/215 dead transitions. [2024-12-01 22:58:32,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 215 transitions, 918 flow [2024-12-01 22:58:32,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:32,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2024-12-01 22:58:32,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6523668639053254 [2024-12-01 22:58:32,635 INFO L175 Difference]: Start difference. First operand has 158 places, 179 transitions, 565 flow. Second operand 4 states and 441 transitions. [2024-12-01 22:58:32,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 215 transitions, 918 flow [2024-12-01 22:58:32,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 215 transitions, 901 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-01 22:58:32,659 INFO L231 Difference]: Finished difference. Result has 157 places, 179 transitions, 572 flow [2024-12-01 22:58:32,659 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=572, PETRI_PLACES=157, PETRI_TRANSITIONS=179} [2024-12-01 22:58:32,660 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2024-12-01 22:58:32,660 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 179 transitions, 572 flow [2024-12-01 22:58:32,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-12-01 22:58:32,660 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:32,660 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:32,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 22:58:32,660 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:32,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:32,660 INFO L85 PathProgramCache]: Analyzing trace with hash -210897474, now seen corresponding path program 1 times [2024-12-01 22:58:32,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:32,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525035724] [2024-12-01 22:58:32,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:32,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:32,876 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-01 22:58:32,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:32,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525035724] [2024-12-01 22:58:32,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525035724] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:58:32,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135736405] [2024-12-01 22:58:32,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:32,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:32,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:58:32,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:58:32,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-01 22:58:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:33,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-01 22:58:33,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:58:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-01 22:58:33,110 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 22:58:33,209 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-01 22:58:33,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135736405] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-01 22:58:33,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-01 22:58:33,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-12-01 22:58:33,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104490554] [2024-12-01 22:58:33,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-01 22:58:33,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-12-01 22:58:33,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:33,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-12-01 22:58:33,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-12-01 22:58:33,252 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:33,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 179 transitions, 572 flow. Second operand has 23 states, 23 states have (on average 84.3913043478261) internal successors, (1941), 23 states have internal predecessors, (1941), 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) [2024-12-01 22:58:33,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:33,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:33,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:34,571 INFO L124 PetriNetUnfolderBase]: 5757/13572 cut-off events. [2024-12-01 22:58:34,571 INFO L125 PetriNetUnfolderBase]: For 3814/3956 co-relation queries the response was YES. [2024-12-01 22:58:34,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25112 conditions, 13572 events. 5757/13572 cut-off events. For 3814/3956 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 134608 event pairs, 3813 based on Foata normal form. 81/11432 useless extension candidates. Maximal degree in co-relation 24985. Up to 8381 conditions per place. [2024-12-01 22:58:34,625 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 22 changer transitions 0/179 dead transitions. [2024-12-01 22:58:34,625 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 179 transitions, 777 flow [2024-12-01 22:58:34,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-01 22:58:34,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-12-01 22:58:34,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1011 transitions. [2024-12-01 22:58:34,628 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5438407746100054 [2024-12-01 22:58:34,628 INFO L175 Difference]: Start difference. First operand has 157 places, 179 transitions, 572 flow. Second operand 11 states and 1011 transitions. [2024-12-01 22:58:34,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 179 transitions, 777 flow [2024-12-01 22:58:34,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 179 transitions, 769 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 22:58:34,674 INFO L231 Difference]: Finished difference. Result has 167 places, 179 transitions, 631 flow [2024-12-01 22:58:34,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=631, PETRI_PLACES=167, PETRI_TRANSITIONS=179} [2024-12-01 22:58:34,674 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 20 predicate places. [2024-12-01 22:58:34,674 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 179 transitions, 631 flow [2024-12-01 22:58:34,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 84.3913043478261) internal successors, (1941), 23 states have internal predecessors, (1941), 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) [2024-12-01 22:58:34,675 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:34,675 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:34,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-01 22:58:34,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:58:34,875 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:34,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:34,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1546175038, now seen corresponding path program 2 times [2024-12-01 22:58:34,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:34,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177163734] [2024-12-01 22:58:34,876 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-01 22:58:34,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:34,906 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-01 22:58:34,907 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-01 22:58:34,963 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:34,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:34,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177163734] [2024-12-01 22:58:34,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177163734] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:34,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:34,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 22:58:34,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261206817] [2024-12-01 22:58:34,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:34,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:34,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:34,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:34,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:35,000 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-12-01 22:58:35,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 179 transitions, 631 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-12-01 22:58:35,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:35,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-12-01 22:58:35,001 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:36,195 INFO L124 PetriNetUnfolderBase]: 6529/14592 cut-off events. [2024-12-01 22:58:36,195 INFO L125 PetriNetUnfolderBase]: For 4164/4206 co-relation queries the response was YES. [2024-12-01 22:58:36,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27644 conditions, 14592 events. 6529/14592 cut-off events. For 4164/4206 co-relation queries the response was YES. Maximal size of possible extension queue 676. Compared 140505 event pairs, 3522 based on Foata normal form. 98/12315 useless extension candidates. Maximal degree in co-relation 27487. Up to 7689 conditions per place. [2024-12-01 22:58:36,251 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 134 selfloop transitions, 7 changer transitions 0/213 dead transitions. [2024-12-01 22:58:36,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 213 transitions, 980 flow [2024-12-01 22:58:36,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:36,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2024-12-01 22:58:36,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6390532544378699 [2024-12-01 22:58:36,253 INFO L175 Difference]: Start difference. First operand has 167 places, 179 transitions, 631 flow. Second operand 4 states and 432 transitions. [2024-12-01 22:58:36,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 213 transitions, 980 flow [2024-12-01 22:58:36,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 213 transitions, 948 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-12-01 22:58:36,296 INFO L231 Difference]: Finished difference. Result has 161 places, 178 transitions, 609 flow [2024-12-01 22:58:36,296 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=609, PETRI_PLACES=161, PETRI_TRANSITIONS=178} [2024-12-01 22:58:36,296 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2024-12-01 22:58:36,296 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 178 transitions, 609 flow [2024-12-01 22:58:36,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-12-01 22:58:36,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:36,297 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:36,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-01 22:58:36,297 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:36,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:36,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1165638698, now seen corresponding path program 1 times [2024-12-01 22:58:36,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:36,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795073477] [2024-12-01 22:58:36,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:36,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:36,375 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:36,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:36,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795073477] [2024-12-01 22:58:36,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795073477] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:36,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:36,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 22:58:36,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107792884] [2024-12-01 22:58:36,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:36,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 22:58:36,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:36,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 22:58:36,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 22:58:36,382 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:36,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 178 transitions, 609 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2024-12-01 22:58:36,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:36,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:36,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:38,000 INFO L124 PetriNetUnfolderBase]: 9773/20944 cut-off events. [2024-12-01 22:58:38,000 INFO L125 PetriNetUnfolderBase]: For 6649/6966 co-relation queries the response was YES. [2024-12-01 22:58:38,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40083 conditions, 20944 events. 9773/20944 cut-off events. For 6649/6966 co-relation queries the response was YES. Maximal size of possible extension queue 730. Compared 201525 event pairs, 4417 based on Foata normal form. 417/18414 useless extension candidates. Maximal degree in co-relation 39940. Up to 9507 conditions per place. [2024-12-01 22:58:38,085 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 162 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2024-12-01 22:58:38,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 238 transitions, 1120 flow [2024-12-01 22:58:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 22:58:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 22:58:38,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2024-12-01 22:58:38,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7633136094674556 [2024-12-01 22:58:38,087 INFO L175 Difference]: Start difference. First operand has 161 places, 178 transitions, 609 flow. Second operand 3 states and 387 transitions. [2024-12-01 22:58:38,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 238 transitions, 1120 flow [2024-12-01 22:58:38,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 238 transitions, 1100 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-01 22:58:38,150 INFO L231 Difference]: Finished difference. Result has 161 places, 179 transitions, 613 flow [2024-12-01 22:58:38,151 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=613, PETRI_PLACES=161, PETRI_TRANSITIONS=179} [2024-12-01 22:58:38,151 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2024-12-01 22:58:38,151 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 179 transitions, 613 flow [2024-12-01 22:58:38,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2024-12-01 22:58:38,152 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:38,152 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:38,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-01 22:58:38,152 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:38,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:38,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1166655565, now seen corresponding path program 1 times [2024-12-01 22:58:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:38,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402597076] [2024-12-01 22:58:38,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:38,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:38,284 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:38,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:38,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402597076] [2024-12-01 22:58:38,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402597076] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:38,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:38,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:58:38,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59031798] [2024-12-01 22:58:38,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:38,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:38,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:38,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:38,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:38,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:58:38,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 179 transitions, 613 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-12-01 22:58:38,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:38,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:58:38,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:40,979 INFO L124 PetriNetUnfolderBase]: 13708/28419 cut-off events. [2024-12-01 22:58:40,980 INFO L125 PetriNetUnfolderBase]: For 8409/8888 co-relation queries the response was YES. [2024-12-01 22:58:41,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55701 conditions, 28419 events. 13708/28419 cut-off events. For 8409/8888 co-relation queries the response was YES. Maximal size of possible extension queue 985. Compared 277795 event pairs, 6038 based on Foata normal form. 949/25517 useless extension candidates. Maximal degree in co-relation 55558. Up to 13076 conditions per place. [2024-12-01 22:58:41,085 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 189 selfloop transitions, 10 changer transitions 0/265 dead transitions. [2024-12-01 22:58:41,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 265 transitions, 1297 flow [2024-12-01 22:58:41,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:41,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:41,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 468 transitions. [2024-12-01 22:58:41,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-12-01 22:58:41,087 INFO L175 Difference]: Start difference. First operand has 161 places, 179 transitions, 613 flow. Second operand 4 states and 468 transitions. [2024-12-01 22:58:41,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 265 transitions, 1297 flow [2024-12-01 22:58:41,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 265 transitions, 1295 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 22:58:41,167 INFO L231 Difference]: Finished difference. Result has 164 places, 183 transitions, 679 flow [2024-12-01 22:58:41,168 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=679, PETRI_PLACES=164, PETRI_TRANSITIONS=183} [2024-12-01 22:58:41,168 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 17 predicate places. [2024-12-01 22:58:41,168 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 183 transitions, 679 flow [2024-12-01 22:58:41,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-12-01 22:58:41,168 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:41,168 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:41,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-01 22:58:41,169 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:41,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:41,169 INFO L85 PathProgramCache]: Analyzing trace with hash 917446636, now seen corresponding path program 1 times [2024-12-01 22:58:41,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:41,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302482591] [2024-12-01 22:58:41,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:41,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:41,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:41,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302482591] [2024-12-01 22:58:41,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302482591] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:41,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:41,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:58:41,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324819548] [2024-12-01 22:58:41,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:41,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:41,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:41,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:41,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:41,313 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:58:41,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 183 transitions, 679 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2024-12-01 22:58:41,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:41,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:58:41,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:43,385 INFO L124 PetriNetUnfolderBase]: 12166/25984 cut-off events. [2024-12-01 22:58:43,385 INFO L125 PetriNetUnfolderBase]: For 10886/11476 co-relation queries the response was YES. [2024-12-01 22:58:43,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54124 conditions, 25984 events. 12166/25984 cut-off events. For 10886/11476 co-relation queries the response was YES. Maximal size of possible extension queue 889. Compared 258528 event pairs, 5625 based on Foata normal form. 557/24417 useless extension candidates. Maximal degree in co-relation 53979. Up to 11544 conditions per place. [2024-12-01 22:58:43,639 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 211 selfloop transitions, 3 changer transitions 0/286 dead transitions. [2024-12-01 22:58:43,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 286 transitions, 1426 flow [2024-12-01 22:58:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:43,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 499 transitions. [2024-12-01 22:58:43,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7381656804733728 [2024-12-01 22:58:43,641 INFO L175 Difference]: Start difference. First operand has 164 places, 183 transitions, 679 flow. Second operand 4 states and 499 transitions. [2024-12-01 22:58:43,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 286 transitions, 1426 flow [2024-12-01 22:58:43,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 286 transitions, 1426 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-01 22:58:43,822 INFO L231 Difference]: Finished difference. Result has 169 places, 184 transitions, 697 flow [2024-12-01 22:58:43,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=697, PETRI_PLACES=169, PETRI_TRANSITIONS=184} [2024-12-01 22:58:43,823 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 22 predicate places. [2024-12-01 22:58:43,823 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 184 transitions, 697 flow [2024-12-01 22:58:43,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2024-12-01 22:58:43,823 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:43,823 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:43,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-01 22:58:43,823 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:43,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:43,824 INFO L85 PathProgramCache]: Analyzing trace with hash 879209920, now seen corresponding path program 1 times [2024-12-01 22:58:43,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:43,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792345717] [2024-12-01 22:58:43,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:43,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:43,930 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:43,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:43,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792345717] [2024-12-01 22:58:43,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792345717] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:43,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:43,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 22:58:43,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099739924] [2024-12-01 22:58:43,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:43,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:43,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:43,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:43,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:43,943 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:58:43,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 184 transitions, 697 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2024-12-01 22:58:43,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:43,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:58:43,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:46,151 INFO L124 PetriNetUnfolderBase]: 10460/21676 cut-off events. [2024-12-01 22:58:46,151 INFO L125 PetriNetUnfolderBase]: For 9429/9941 co-relation queries the response was YES. [2024-12-01 22:58:46,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45924 conditions, 21676 events. 10460/21676 cut-off events. For 9429/9941 co-relation queries the response was YES. Maximal size of possible extension queue 697. Compared 201817 event pairs, 5256 based on Foata normal form. 416/20504 useless extension candidates. Maximal degree in co-relation 45776. Up to 10878 conditions per place. [2024-12-01 22:58:46,262 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 228 selfloop transitions, 4 changer transitions 14/320 dead transitions. [2024-12-01 22:58:46,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 320 transitions, 1592 flow [2024-12-01 22:58:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 22:58:46,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-01 22:58:46,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 619 transitions. [2024-12-01 22:58:46,264 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7325443786982249 [2024-12-01 22:58:46,264 INFO L175 Difference]: Start difference. First operand has 169 places, 184 transitions, 697 flow. Second operand 5 states and 619 transitions. [2024-12-01 22:58:46,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 320 transitions, 1592 flow [2024-12-01 22:58:46,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 320 transitions, 1588 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 22:58:46,379 INFO L231 Difference]: Finished difference. Result has 174 places, 186 transitions, 718 flow [2024-12-01 22:58:46,380 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=693, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=718, PETRI_PLACES=174, PETRI_TRANSITIONS=186} [2024-12-01 22:58:46,380 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 27 predicate places. [2024-12-01 22:58:46,380 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 186 transitions, 718 flow [2024-12-01 22:58:46,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2024-12-01 22:58:46,381 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:46,381 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:46,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-01 22:58:46,381 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:46,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:46,381 INFO L85 PathProgramCache]: Analyzing trace with hash 686786598, now seen corresponding path program 1 times [2024-12-01 22:58:46,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:46,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389649623] [2024-12-01 22:58:46,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:46,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:46,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:46,531 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:46,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:46,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389649623] [2024-12-01 22:58:46,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389649623] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:46,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:46,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:58:46,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342541212] [2024-12-01 22:58:46,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:46,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:58:46,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:46,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:58:46,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-01 22:58:46,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2024-12-01 22:58:46,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 186 transitions, 718 flow. Second operand has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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) [2024-12-01 22:58:46,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:46,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2024-12-01 22:58:46,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:49,290 INFO L124 PetriNetUnfolderBase]: 12403/24884 cut-off events. [2024-12-01 22:58:49,290 INFO L125 PetriNetUnfolderBase]: For 9799/10274 co-relation queries the response was YES. [2024-12-01 22:58:49,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54257 conditions, 24884 events. 12403/24884 cut-off events. For 9799/10274 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 227321 event pairs, 5860 based on Foata normal form. 247/23232 useless extension candidates. Maximal degree in co-relation 54107. Up to 12224 conditions per place. [2024-12-01 22:58:49,399 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 187 selfloop transitions, 12 changer transitions 0/267 dead transitions. [2024-12-01 22:58:49,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 267 transitions, 1364 flow [2024-12-01 22:58:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 22:58:49,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-01 22:58:49,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2024-12-01 22:58:49,400 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2024-12-01 22:58:49,400 INFO L175 Difference]: Start difference. First operand has 174 places, 186 transitions, 718 flow. Second operand 5 states and 546 transitions. [2024-12-01 22:58:49,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 267 transitions, 1364 flow [2024-12-01 22:58:49,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 267 transitions, 1364 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-01 22:58:49,520 INFO L231 Difference]: Finished difference. Result has 179 places, 186 transitions, 764 flow [2024-12-01 22:58:49,520 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=764, PETRI_PLACES=179, PETRI_TRANSITIONS=186} [2024-12-01 22:58:49,520 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 32 predicate places. [2024-12-01 22:58:49,520 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 186 transitions, 764 flow [2024-12-01 22:58:49,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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) [2024-12-01 22:58:49,521 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:49,521 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:49,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-01 22:58:49,521 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:49,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:49,521 INFO L85 PathProgramCache]: Analyzing trace with hash 686787623, now seen corresponding path program 1 times [2024-12-01 22:58:49,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:49,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388907579] [2024-12-01 22:58:49,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:49,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:49,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:49,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388907579] [2024-12-01 22:58:49,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388907579] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:49,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:49,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:58:49,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516717410] [2024-12-01 22:58:49,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:49,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:49,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:49,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:49,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:49,627 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:58:49,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 186 transitions, 764 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2024-12-01 22:58:49,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:49,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:58:49,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:51,523 INFO L124 PetriNetUnfolderBase]: 10854/23385 cut-off events. [2024-12-01 22:58:51,523 INFO L125 PetriNetUnfolderBase]: For 14549/14890 co-relation queries the response was YES. [2024-12-01 22:58:51,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52111 conditions, 23385 events. 10854/23385 cut-off events. For 14549/14890 co-relation queries the response was YES. Maximal size of possible extension queue 749. Compared 225043 event pairs, 5825 based on Foata normal form. 385/21947 useless extension candidates. Maximal degree in co-relation 51957. Up to 12180 conditions per place. [2024-12-01 22:58:51,676 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 189 selfloop transitions, 9 changer transitions 0/266 dead transitions. [2024-12-01 22:58:51,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 266 transitions, 1398 flow [2024-12-01 22:58:51,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:51,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2024-12-01 22:58:51,677 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6834319526627219 [2024-12-01 22:58:51,677 INFO L175 Difference]: Start difference. First operand has 179 places, 186 transitions, 764 flow. Second operand 4 states and 462 transitions. [2024-12-01 22:58:51,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 266 transitions, 1398 flow [2024-12-01 22:58:51,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 266 transitions, 1382 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-01 22:58:51,890 INFO L231 Difference]: Finished difference. Result has 179 places, 184 transitions, 754 flow [2024-12-01 22:58:51,890 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=754, PETRI_PLACES=179, PETRI_TRANSITIONS=184} [2024-12-01 22:58:51,890 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 32 predicate places. [2024-12-01 22:58:51,890 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 184 transitions, 754 flow [2024-12-01 22:58:51,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2024-12-01 22:58:51,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:51,890 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:51,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-01 22:58:51,891 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:51,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:51,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1806582395, now seen corresponding path program 1 times [2024-12-01 22:58:51,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:51,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084539437] [2024-12-01 22:58:51,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:51,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:51,958 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:51,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:51,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084539437] [2024-12-01 22:58:51,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084539437] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:51,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:51,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 22:58:51,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901880460] [2024-12-01 22:58:51,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:51,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:51,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:51,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:51,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:51,993 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:58:51,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 184 transitions, 754 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2024-12-01 22:58:51,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:51,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:58:51,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:54,060 INFO L124 PetriNetUnfolderBase]: 10920/24469 cut-off events. [2024-12-01 22:58:54,060 INFO L125 PetriNetUnfolderBase]: For 15738/15979 co-relation queries the response was YES. [2024-12-01 22:58:54,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53719 conditions, 24469 events. 10920/24469 cut-off events. For 15738/15979 co-relation queries the response was YES. Maximal size of possible extension queue 780. Compared 244767 event pairs, 6100 based on Foata normal form. 195/22456 useless extension candidates. Maximal degree in co-relation 53566. Up to 12714 conditions per place. [2024-12-01 22:58:54,205 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 149 selfloop transitions, 7 changer transitions 0/228 dead transitions. [2024-12-01 22:58:54,205 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 228 transitions, 1272 flow [2024-12-01 22:58:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:54,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:54,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2024-12-01 22:58:54,207 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.650887573964497 [2024-12-01 22:58:54,207 INFO L175 Difference]: Start difference. First operand has 179 places, 184 transitions, 754 flow. Second operand 4 states and 440 transitions. [2024-12-01 22:58:54,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 228 transitions, 1272 flow [2024-12-01 22:58:54,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 228 transitions, 1248 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 22:58:54,426 INFO L231 Difference]: Finished difference. Result has 180 places, 184 transitions, 765 flow [2024-12-01 22:58:54,427 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=765, PETRI_PLACES=180, PETRI_TRANSITIONS=184} [2024-12-01 22:58:54,427 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 33 predicate places. [2024-12-01 22:58:54,427 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 184 transitions, 765 flow [2024-12-01 22:58:54,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2024-12-01 22:58:54,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:54,427 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:54,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-01 22:58:54,427 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:54,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:54,428 INFO L85 PathProgramCache]: Analyzing trace with hash -184450232, now seen corresponding path program 1 times [2024-12-01 22:58:54,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:54,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296677074] [2024-12-01 22:58:54,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:54,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:54,527 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:54,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:54,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296677074] [2024-12-01 22:58:54,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296677074] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:54,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:54,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 22:58:54,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926572952] [2024-12-01 22:58:54,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:54,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 22:58:54,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:54,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 22:58:54,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-01 22:58:54,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2024-12-01 22:58:54,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 184 transitions, 765 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2024-12-01 22:58:54,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:54,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2024-12-01 22:58:54,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:56,908 INFO L124 PetriNetUnfolderBase]: 13089/26010 cut-off events. [2024-12-01 22:58:56,908 INFO L125 PetriNetUnfolderBase]: For 18765/19254 co-relation queries the response was YES. [2024-12-01 22:58:57,015 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60416 conditions, 26010 events. 13089/26010 cut-off events. For 18765/19254 co-relation queries the response was YES. Maximal size of possible extension queue 769. Compared 236865 event pairs, 6724 based on Foata normal form. 573/24634 useless extension candidates. Maximal degree in co-relation 60261. Up to 13834 conditions per place. [2024-12-01 22:58:57,079 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 314 selfloop transitions, 13 changer transitions 0/391 dead transitions. [2024-12-01 22:58:57,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 391 transitions, 2145 flow [2024-12-01 22:58:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 22:58:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-01 22:58:57,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 835 transitions. [2024-12-01 22:58:57,083 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.617603550295858 [2024-12-01 22:58:57,083 INFO L175 Difference]: Start difference. First operand has 180 places, 184 transitions, 765 flow. Second operand 8 states and 835 transitions. [2024-12-01 22:58:57,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 391 transitions, 2145 flow [2024-12-01 22:58:57,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 391 transitions, 2112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 22:58:57,439 INFO L231 Difference]: Finished difference. Result has 188 places, 186 transitions, 814 flow [2024-12-01 22:58:57,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=814, PETRI_PLACES=188, PETRI_TRANSITIONS=186} [2024-12-01 22:58:57,439 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 41 predicate places. [2024-12-01 22:58:57,439 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 186 transitions, 814 flow [2024-12-01 22:58:57,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2024-12-01 22:58:57,439 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:58:57,439 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:58:57,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-01 22:58:57,440 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:58:57,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:58:57,440 INFO L85 PathProgramCache]: Analyzing trace with hash -169509410, now seen corresponding path program 1 times [2024-12-01 22:58:57,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:58:57,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849144902] [2024-12-01 22:58:57,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:58:57,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:58:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:58:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:58:57,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:58:57,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849144902] [2024-12-01 22:58:57,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849144902] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:58:57,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:58:57,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 22:58:57,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590219526] [2024-12-01 22:58:57,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:58:57,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:58:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:58:57,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:58:57,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:58:57,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-12-01 22:58:57,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 186 transitions, 814 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2024-12-01 22:58:57,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:58:57,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-12-01 22:58:57,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:58:59,730 INFO L124 PetriNetUnfolderBase]: 11310/24706 cut-off events. [2024-12-01 22:58:59,730 INFO L125 PetriNetUnfolderBase]: For 25752/26338 co-relation queries the response was YES. [2024-12-01 22:58:59,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58322 conditions, 24706 events. 11310/24706 cut-off events. For 25752/26338 co-relation queries the response was YES. Maximal size of possible extension queue 776. Compared 242301 event pairs, 6670 based on Foata normal form. 541/23273 useless extension candidates. Maximal degree in co-relation 58163. Up to 13762 conditions per place. [2024-12-01 22:58:59,853 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 155 selfloop transitions, 7 changer transitions 0/230 dead transitions. [2024-12-01 22:58:59,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 230 transitions, 1359 flow [2024-12-01 22:58:59,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:58:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:58:59,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2024-12-01 22:58:59,854 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6375739644970414 [2024-12-01 22:58:59,854 INFO L175 Difference]: Start difference. First operand has 188 places, 186 transitions, 814 flow. Second operand 4 states and 431 transitions. [2024-12-01 22:58:59,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 230 transitions, 1359 flow [2024-12-01 22:59:00,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 230 transitions, 1340 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-12-01 22:59:00,155 INFO L231 Difference]: Finished difference. Result has 187 places, 185 transitions, 813 flow [2024-12-01 22:59:00,155 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=184, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=813, PETRI_PLACES=187, PETRI_TRANSITIONS=185} [2024-12-01 22:59:00,156 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 40 predicate places. [2024-12-01 22:59:00,156 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 185 transitions, 813 flow [2024-12-01 22:59:00,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2024-12-01 22:59:00,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:00,156 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:00,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-01 22:59:00,156 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:00,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:00,156 INFO L85 PathProgramCache]: Analyzing trace with hash -476072270, now seen corresponding path program 1 times [2024-12-01 22:59:00,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:00,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662038020] [2024-12-01 22:59:00,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:00,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:00,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:00,245 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:00,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:00,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662038020] [2024-12-01 22:59:00,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662038020] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:00,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:00,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:59:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966513429] [2024-12-01 22:59:00,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:00,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:00,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:00,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:00,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:59:00,280 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:59:00,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 185 transitions, 813 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-12-01 22:59:00,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:00,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:59:00,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:02,526 INFO L124 PetriNetUnfolderBase]: 12176/25183 cut-off events. [2024-12-01 22:59:02,526 INFO L125 PetriNetUnfolderBase]: For 23744/24132 co-relation queries the response was YES. [2024-12-01 22:59:02,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60603 conditions, 25183 events. 12176/25183 cut-off events. For 23744/24132 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 237298 event pairs, 6403 based on Foata normal form. 510/24033 useless extension candidates. Maximal degree in co-relation 60443. Up to 13342 conditions per place. [2024-12-01 22:59:02,707 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 190 selfloop transitions, 10 changer transitions 0/266 dead transitions. [2024-12-01 22:59:02,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 266 transitions, 1505 flow [2024-12-01 22:59:02,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:02,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2024-12-01 22:59:02,709 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6775147928994083 [2024-12-01 22:59:02,709 INFO L175 Difference]: Start difference. First operand has 187 places, 185 transitions, 813 flow. Second operand 4 states and 458 transitions. [2024-12-01 22:59:02,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 266 transitions, 1505 flow [2024-12-01 22:59:03,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 266 transitions, 1473 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-01 22:59:03,125 INFO L231 Difference]: Finished difference. Result has 185 places, 184 transitions, 821 flow [2024-12-01 22:59:03,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=783, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=821, PETRI_PLACES=185, PETRI_TRANSITIONS=184} [2024-12-01 22:59:03,126 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 38 predicate places. [2024-12-01 22:59:03,126 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 184 transitions, 821 flow [2024-12-01 22:59:03,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-12-01 22:59:03,126 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:03,126 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:03,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-01 22:59:03,126 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:03,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:03,126 INFO L85 PathProgramCache]: Analyzing trace with hash -767369592, now seen corresponding path program 1 times [2024-12-01 22:59:03,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:03,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493089473] [2024-12-01 22:59:03,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:03,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:03,200 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:03,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:03,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493089473] [2024-12-01 22:59:03,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493089473] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:03,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:03,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 22:59:03,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733269404] [2024-12-01 22:59:03,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:03,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:03,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:03,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:03,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:59:03,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:59:03,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 184 transitions, 821 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2024-12-01 22:59:03,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:03,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:59:03,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:05,127 INFO L124 PetriNetUnfolderBase]: 9724/20463 cut-off events. [2024-12-01 22:59:05,128 INFO L125 PetriNetUnfolderBase]: For 23038/23659 co-relation queries the response was YES. [2024-12-01 22:59:05,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48916 conditions, 20463 events. 9724/20463 cut-off events. For 23038/23659 co-relation queries the response was YES. Maximal size of possible extension queue 656. Compared 187626 event pairs, 5163 based on Foata normal form. 604/19607 useless extension candidates. Maximal degree in co-relation 48756. Up to 10520 conditions per place. [2024-12-01 22:59:05,251 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 243 selfloop transitions, 4 changer transitions 22/337 dead transitions. [2024-12-01 22:59:05,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 337 transitions, 2118 flow [2024-12-01 22:59:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 22:59:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-01 22:59:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 614 transitions. [2024-12-01 22:59:05,252 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7266272189349112 [2024-12-01 22:59:05,252 INFO L175 Difference]: Start difference. First operand has 185 places, 184 transitions, 821 flow. Second operand 5 states and 614 transitions. [2024-12-01 22:59:05,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 337 transitions, 2118 flow [2024-12-01 22:59:05,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 337 transitions, 2073 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-12-01 22:59:05,423 INFO L231 Difference]: Finished difference. Result has 190 places, 186 transitions, 834 flow [2024-12-01 22:59:05,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=834, PETRI_PLACES=190, PETRI_TRANSITIONS=186} [2024-12-01 22:59:05,424 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 43 predicate places. [2024-12-01 22:59:05,424 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 186 transitions, 834 flow [2024-12-01 22:59:05,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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) [2024-12-01 22:59:05,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:05,424 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:05,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-01 22:59:05,424 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:05,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:05,424 INFO L85 PathProgramCache]: Analyzing trace with hash -729163628, now seen corresponding path program 1 times [2024-12-01 22:59:05,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:05,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215896567] [2024-12-01 22:59:05,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:05,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:05,507 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:05,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:05,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215896567] [2024-12-01 22:59:05,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215896567] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:05,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:05,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:59:05,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779413136] [2024-12-01 22:59:05,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:05,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:05,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:05,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:05,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:59:05,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:59:05,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 186 transitions, 834 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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) [2024-12-01 22:59:05,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:05,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:59:05,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:07,445 INFO L124 PetriNetUnfolderBase]: 10058/20653 cut-off events. [2024-12-01 22:59:07,445 INFO L125 PetriNetUnfolderBase]: For 22476/23117 co-relation queries the response was YES. [2024-12-01 22:59:07,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50138 conditions, 20653 events. 10058/20653 cut-off events. For 22476/23117 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 185311 event pairs, 5888 based on Foata normal form. 723/20104 useless extension candidates. Maximal degree in co-relation 49977. Up to 11850 conditions per place. [2024-12-01 22:59:07,579 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 220 selfloop transitions, 3 changer transitions 0/289 dead transitions. [2024-12-01 22:59:07,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 289 transitions, 1766 flow [2024-12-01 22:59:07,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:07,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-12-01 22:59:07,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7248520710059172 [2024-12-01 22:59:07,580 INFO L175 Difference]: Start difference. First operand has 190 places, 186 transitions, 834 flow. Second operand 4 states and 490 transitions. [2024-12-01 22:59:07,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 289 transitions, 1766 flow [2024-12-01 22:59:07,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 289 transitions, 1764 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 22:59:07,761 INFO L231 Difference]: Finished difference. Result has 194 places, 187 transitions, 850 flow [2024-12-01 22:59:07,761 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=850, PETRI_PLACES=194, PETRI_TRANSITIONS=187} [2024-12-01 22:59:07,761 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 47 predicate places. [2024-12-01 22:59:07,761 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 187 transitions, 850 flow [2024-12-01 22:59:07,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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) [2024-12-01 22:59:07,761 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:07,761 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:07,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-01 22:59:07,762 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:07,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:07,762 INFO L85 PathProgramCache]: Analyzing trace with hash -959823666, now seen corresponding path program 1 times [2024-12-01 22:59:07,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:07,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197279052] [2024-12-01 22:59:07,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:07,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:07,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:07,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197279052] [2024-12-01 22:59:07,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197279052] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:07,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:07,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:59:07,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505122158] [2024-12-01 22:59:07,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:07,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:59:07,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:07,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:59:07,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-01 22:59:07,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2024-12-01 22:59:07,899 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 187 transitions, 850 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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) [2024-12-01 22:59:07,899 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:07,899 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2024-12-01 22:59:07,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:09,968 INFO L124 PetriNetUnfolderBase]: 11594/22597 cut-off events. [2024-12-01 22:59:09,968 INFO L125 PetriNetUnfolderBase]: For 24883/25593 co-relation queries the response was YES. [2024-12-01 22:59:10,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57082 conditions, 22597 events. 11594/22597 cut-off events. For 24883/25593 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 194491 event pairs, 5796 based on Foata normal form. 546/21989 useless extension candidates. Maximal degree in co-relation 56918. Up to 11769 conditions per place. [2024-12-01 22:59:10,144 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 206 selfloop transitions, 12 changer transitions 0/280 dead transitions. [2024-12-01 22:59:10,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 280 transitions, 1752 flow [2024-12-01 22:59:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 22:59:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-12-01 22:59:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2024-12-01 22:59:10,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6437869822485207 [2024-12-01 22:59:10,145 INFO L175 Difference]: Start difference. First operand has 194 places, 187 transitions, 850 flow. Second operand 5 states and 544 transitions. [2024-12-01 22:59:10,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 280 transitions, 1752 flow [2024-12-01 22:59:10,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 280 transitions, 1750 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 22:59:10,370 INFO L231 Difference]: Finished difference. Result has 198 places, 187 transitions, 894 flow [2024-12-01 22:59:10,370 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=894, PETRI_PLACES=198, PETRI_TRANSITIONS=187} [2024-12-01 22:59:10,370 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2024-12-01 22:59:10,370 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 187 transitions, 894 flow [2024-12-01 22:59:10,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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) [2024-12-01 22:59:10,371 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:10,371 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:10,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-01 22:59:10,371 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:10,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:10,371 INFO L85 PathProgramCache]: Analyzing trace with hash -959822641, now seen corresponding path program 1 times [2024-12-01 22:59:10,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:10,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587891890] [2024-12-01 22:59:10,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:10,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:10,444 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:10,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:10,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587891890] [2024-12-01 22:59:10,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587891890] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:10,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:10,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:59:10,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51140033] [2024-12-01 22:59:10,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:10,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:10,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:10,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:10,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:59:10,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:59:10,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 187 transitions, 894 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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) [2024-12-01 22:59:10,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:10,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:59:10,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:12,492 INFO L124 PetriNetUnfolderBase]: 10159/21116 cut-off events. [2024-12-01 22:59:12,492 INFO L125 PetriNetUnfolderBase]: For 26950/27470 co-relation queries the response was YES. [2024-12-01 22:59:12,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54423 conditions, 21116 events. 10159/21116 cut-off events. For 26950/27470 co-relation queries the response was YES. Maximal size of possible extension queue 648. Compared 190759 event pairs, 5796 based on Foata normal form. 620/20734 useless extension candidates. Maximal degree in co-relation 54256. Up to 11770 conditions per place. [2024-12-01 22:59:12,590 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 208 selfloop transitions, 9 changer transitions 0/279 dead transitions. [2024-12-01 22:59:12,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 279 transitions, 1784 flow [2024-12-01 22:59:12,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:12,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2024-12-01 22:59:12,591 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6804733727810651 [2024-12-01 22:59:12,591 INFO L175 Difference]: Start difference. First operand has 198 places, 187 transitions, 894 flow. Second operand 4 states and 460 transitions. [2024-12-01 22:59:12,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 279 transitions, 1784 flow [2024-12-01 22:59:12,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 279 transitions, 1768 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-01 22:59:12,804 INFO L231 Difference]: Finished difference. Result has 198 places, 185 transitions, 884 flow [2024-12-01 22:59:12,804 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=866, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=884, PETRI_PLACES=198, PETRI_TRANSITIONS=185} [2024-12-01 22:59:12,805 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2024-12-01 22:59:12,805 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 185 transitions, 884 flow [2024-12-01 22:59:12,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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) [2024-12-01 22:59:12,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:12,805 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:12,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-12-01 22:59:12,805 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:12,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:12,805 INFO L85 PathProgramCache]: Analyzing trace with hash 310239208, now seen corresponding path program 1 times [2024-12-01 22:59:12,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:12,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820298794] [2024-12-01 22:59:12,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:12,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:12,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:12,917 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:12,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:12,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820298794] [2024-12-01 22:59:12,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820298794] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:12,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:12,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 22:59:12,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749328611] [2024-12-01 22:59:12,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:12,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 22:59:12,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:12,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 22:59:12,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-01 22:59:12,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2024-12-01 22:59:12,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 185 transitions, 884 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2024-12-01 22:59:12,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:12,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2024-12-01 22:59:12,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:15,364 INFO L124 PetriNetUnfolderBase]: 11662/22380 cut-off events. [2024-12-01 22:59:15,364 INFO L125 PetriNetUnfolderBase]: For 29382/30104 co-relation queries the response was YES. [2024-12-01 22:59:15,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59154 conditions, 22380 events. 11662/22380 cut-off events. For 29382/30104 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 189316 event pairs, 6231 based on Foata normal form. 857/22267 useless extension candidates. Maximal degree in co-relation 58988. Up to 12567 conditions per place. [2024-12-01 22:59:15,537 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 345 selfloop transitions, 13 changer transitions 0/417 dead transitions. [2024-12-01 22:59:15,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 417 transitions, 2766 flow [2024-12-01 22:59:15,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 22:59:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-12-01 22:59:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 830 transitions. [2024-12-01 22:59:15,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.613905325443787 [2024-12-01 22:59:15,538 INFO L175 Difference]: Start difference. First operand has 198 places, 185 transitions, 884 flow. Second operand 8 states and 830 transitions. [2024-12-01 22:59:15,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 417 transitions, 2766 flow [2024-12-01 22:59:15,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 417 transitions, 2753 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-01 22:59:15,819 INFO L231 Difference]: Finished difference. Result has 206 places, 187 transitions, 928 flow [2024-12-01 22:59:15,819 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=928, PETRI_PLACES=206, PETRI_TRANSITIONS=187} [2024-12-01 22:59:15,820 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 59 predicate places. [2024-12-01 22:59:15,820 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 187 transitions, 928 flow [2024-12-01 22:59:15,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2024-12-01 22:59:15,820 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:15,820 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:15,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-01 22:59:15,821 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:15,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:15,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1974398554, now seen corresponding path program 1 times [2024-12-01 22:59:15,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:15,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250322083] [2024-12-01 22:59:15,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:15,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:15,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:15,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250322083] [2024-12-01 22:59:15,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250322083] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:15,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:15,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:59:15,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437282720] [2024-12-01 22:59:15,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:15,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:15,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:15,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:15,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:59:15,924 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:59:15,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 187 transitions, 928 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-12-01 22:59:15,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:15,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:59:15,925 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:17,940 INFO L124 PetriNetUnfolderBase]: 10827/21496 cut-off events. [2024-12-01 22:59:17,941 INFO L125 PetriNetUnfolderBase]: For 34994/35623 co-relation queries the response was YES. [2024-12-01 22:59:18,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58719 conditions, 21496 events. 10827/21496 cut-off events. For 34994/35623 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 187183 event pairs, 5941 based on Foata normal form. 723/21535 useless extension candidates. Maximal degree in co-relation 58548. Up to 12135 conditions per place. [2024-12-01 22:59:18,098 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 206 selfloop transitions, 10 changer transitions 0/278 dead transitions. [2024-12-01 22:59:18,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 278 transitions, 1826 flow [2024-12-01 22:59:18,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:18,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2024-12-01 22:59:18,100 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6745562130177515 [2024-12-01 22:59:18,100 INFO L175 Difference]: Start difference. First operand has 206 places, 187 transitions, 928 flow. Second operand 4 states and 456 transitions. [2024-12-01 22:59:18,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 278 transitions, 1826 flow [2024-12-01 22:59:18,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 278 transitions, 1809 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-12-01 22:59:18,398 INFO L231 Difference]: Finished difference. Result has 204 places, 186 transitions, 939 flow [2024-12-01 22:59:18,398 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=939, PETRI_PLACES=204, PETRI_TRANSITIONS=186} [2024-12-01 22:59:18,399 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 57 predicate places. [2024-12-01 22:59:18,399 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 186 transitions, 939 flow [2024-12-01 22:59:18,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-12-01 22:59:18,399 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:18,399 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:18,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-12-01 22:59:18,399 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:18,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:18,399 INFO L85 PathProgramCache]: Analyzing trace with hash 2032274871, now seen corresponding path program 1 times [2024-12-01 22:59:18,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:18,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964529574] [2024-12-01 22:59:18,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:18,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:18,491 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:18,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:18,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964529574] [2024-12-01 22:59:18,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964529574] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:18,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067946706] [2024-12-01 22:59:18,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:18,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:18,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:18,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:18,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-01 22:59:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:18,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 22:59:18,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:18,692 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:18,692 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:18,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067946706] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:18,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:18,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-01 22:59:18,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495574374] [2024-12-01 22:59:18,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:18,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:59:18,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:18,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:59:18,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-01 22:59:18,707 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:59:18,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 186 transitions, 939 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2024-12-01 22:59:18,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:18,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:59:18,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:20,845 INFO L124 PetriNetUnfolderBase]: 9939/19683 cut-off events. [2024-12-01 22:59:20,845 INFO L125 PetriNetUnfolderBase]: For 34235/35188 co-relation queries the response was YES. [2024-12-01 22:59:20,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54640 conditions, 19683 events. 9939/19683 cut-off events. For 34235/35188 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 171558 event pairs, 2110 based on Foata normal form. 1018/20216 useless extension candidates. Maximal degree in co-relation 54468. Up to 7038 conditions per place. [2024-12-01 22:59:21,009 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 317 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2024-12-01 22:59:21,009 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 384 transitions, 2579 flow [2024-12-01 22:59:21,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 22:59:21,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 22:59:21,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2024-12-01 22:59:21,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7149901380670611 [2024-12-01 22:59:21,011 INFO L175 Difference]: Start difference. First operand has 204 places, 186 transitions, 939 flow. Second operand 6 states and 725 transitions. [2024-12-01 22:59:21,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 384 transitions, 2579 flow [2024-12-01 22:59:21,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 384 transitions, 2523 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-12-01 22:59:21,312 INFO L231 Difference]: Finished difference. Result has 204 places, 183 transitions, 925 flow [2024-12-01 22:59:21,312 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=925, PETRI_PLACES=204, PETRI_TRANSITIONS=183} [2024-12-01 22:59:21,313 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 57 predicate places. [2024-12-01 22:59:21,313 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 183 transitions, 925 flow [2024-12-01 22:59:21,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2024-12-01 22:59:21,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:21,313 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:21,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-01 22:59:21,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-01 22:59:21,514 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:21,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:21,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1423986754, now seen corresponding path program 1 times [2024-12-01 22:59:21,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:21,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842019589] [2024-12-01 22:59:21,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:21,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:21,594 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:21,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:21,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842019589] [2024-12-01 22:59:21,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842019589] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:21,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071408662] [2024-12-01 22:59:21,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:21,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:21,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:21,596 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:21,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-01 22:59:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:21,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-01 22:59:21,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:21,777 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:21,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:21,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071408662] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:21,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:21,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-01 22:59:21,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643357773] [2024-12-01 22:59:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:21,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 22:59:21,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:21,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 22:59:21,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-01 22:59:21,785 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:59:21,785 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 183 transitions, 925 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-12-01 22:59:21,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:21,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:59:21,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:23,635 INFO L124 PetriNetUnfolderBase]: 9443/19413 cut-off events. [2024-12-01 22:59:23,635 INFO L125 PetriNetUnfolderBase]: For 31686/32439 co-relation queries the response was YES. [2024-12-01 22:59:23,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52852 conditions, 19413 events. 9443/19413 cut-off events. For 31686/32439 co-relation queries the response was YES. Maximal size of possible extension queue 595. Compared 174150 event pairs, 4796 based on Foata normal form. 830/19712 useless extension candidates. Maximal degree in co-relation 52681. Up to 9547 conditions per place. [2024-12-01 22:59:23,799 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 167 selfloop transitions, 4 changer transitions 0/234 dead transitions. [2024-12-01 22:59:23,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 234 transitions, 1506 flow [2024-12-01 22:59:23,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 22:59:23,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 22:59:23,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2024-12-01 22:59:23,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7297830374753451 [2024-12-01 22:59:23,801 INFO L175 Difference]: Start difference. First operand has 204 places, 183 transitions, 925 flow. Second operand 3 states and 370 transitions. [2024-12-01 22:59:23,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 234 transitions, 1506 flow [2024-12-01 22:59:24,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 234 transitions, 1493 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-12-01 22:59:24,060 INFO L231 Difference]: Finished difference. Result has 200 places, 182 transitions, 920 flow [2024-12-01 22:59:24,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=200, PETRI_TRANSITIONS=182} [2024-12-01 22:59:24,061 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 53 predicate places. [2024-12-01 22:59:24,061 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 182 transitions, 920 flow [2024-12-01 22:59:24,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-12-01 22:59:24,062 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:24,062 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:24,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-01 22:59:24,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-01 22:59:24,262 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:24,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:24,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1845433257, now seen corresponding path program 1 times [2024-12-01 22:59:24,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:24,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846057983] [2024-12-01 22:59:24,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:24,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:24,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:24,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846057983] [2024-12-01 22:59:24,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846057983] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:24,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440269295] [2024-12-01 22:59:24,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:24,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:24,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:24,355 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:24,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-01 22:59:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:24,546 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 22:59:24,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:24,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:24,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440269295] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:24,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:24,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-12-01 22:59:24,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023928326] [2024-12-01 22:59:24,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:24,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:59:24,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:24,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:59:24,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-01 22:59:24,583 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:59:24,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 182 transitions, 920 flow. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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) [2024-12-01 22:59:24,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:24,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:59:24,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:26,907 INFO L124 PetriNetUnfolderBase]: 10205/20308 cut-off events. [2024-12-01 22:59:26,907 INFO L125 PetriNetUnfolderBase]: For 33736/34644 co-relation queries the response was YES. [2024-12-01 22:59:26,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55788 conditions, 20308 events. 10205/20308 cut-off events. For 33736/34644 co-relation queries the response was YES. Maximal size of possible extension queue 613. Compared 176560 event pairs, 2275 based on Foata normal form. 1000/20995 useless extension candidates. Maximal degree in co-relation 55619. Up to 7144 conditions per place. [2024-12-01 22:59:27,034 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 316 selfloop transitions, 5 changer transitions 0/378 dead transitions. [2024-12-01 22:59:27,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 378 transitions, 2552 flow [2024-12-01 22:59:27,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 22:59:27,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 22:59:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2024-12-01 22:59:27,035 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7090729783037475 [2024-12-01 22:59:27,035 INFO L175 Difference]: Start difference. First operand has 200 places, 182 transitions, 920 flow. Second operand 6 states and 719 transitions. [2024-12-01 22:59:27,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 378 transitions, 2552 flow [2024-12-01 22:59:27,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 378 transitions, 2532 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 22:59:27,239 INFO L231 Difference]: Finished difference. Result has 201 places, 179 transitions, 914 flow [2024-12-01 22:59:27,239 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=201, PETRI_TRANSITIONS=179} [2024-12-01 22:59:27,239 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 54 predicate places. [2024-12-01 22:59:27,240 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 179 transitions, 914 flow [2024-12-01 22:59:27,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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) [2024-12-01 22:59:27,240 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:27,240 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:27,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-01 22:59:27,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:27,440 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:27,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1606069663, now seen corresponding path program 1 times [2024-12-01 22:59:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:27,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314546430] [2024-12-01 22:59:27,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:27,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:27,537 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:27,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:27,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314546430] [2024-12-01 22:59:27,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314546430] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:27,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97593064] [2024-12-01 22:59:27,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:27,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:27,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:27,540 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:27,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-01 22:59:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:27,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 22:59:27,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:27,746 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:27,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97593064] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:27,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:27,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-12-01 22:59:27,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172850489] [2024-12-01 22:59:27,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:27,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:27,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:27,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:27,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 22:59:27,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:59:27,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 179 transitions, 914 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2024-12-01 22:59:27,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:27,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:59:27,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:29,703 INFO L124 PetriNetUnfolderBase]: 9857/20508 cut-off events. [2024-12-01 22:59:29,703 INFO L125 PetriNetUnfolderBase]: For 33145/33717 co-relation queries the response was YES. [2024-12-01 22:59:29,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56524 conditions, 20508 events. 9857/20508 cut-off events. For 33145/33717 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 184140 event pairs, 6095 based on Foata normal form. 512/20662 useless extension candidates. Maximal degree in co-relation 56354. Up to 12260 conditions per place. [2024-12-01 22:59:29,871 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 160 selfloop transitions, 7 changer transitions 0/225 dead transitions. [2024-12-01 22:59:29,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 225 transitions, 1490 flow [2024-12-01 22:59:29,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:29,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2024-12-01 22:59:29,872 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6494082840236687 [2024-12-01 22:59:29,872 INFO L175 Difference]: Start difference. First operand has 201 places, 179 transitions, 914 flow. Second operand 4 states and 439 transitions. [2024-12-01 22:59:29,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 225 transitions, 1490 flow [2024-12-01 22:59:30,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 225 transitions, 1468 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-12-01 22:59:30,230 INFO L231 Difference]: Finished difference. Result has 199 places, 178 transitions, 915 flow [2024-12-01 22:59:30,230 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=915, PETRI_PLACES=199, PETRI_TRANSITIONS=178} [2024-12-01 22:59:30,230 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 52 predicate places. [2024-12-01 22:59:30,230 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 178 transitions, 915 flow [2024-12-01 22:59:30,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2024-12-01 22:59:30,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:30,230 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:30,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-01 22:59:30,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:30,431 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:30,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:30,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1373854362, now seen corresponding path program 1 times [2024-12-01 22:59:30,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:30,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639800268] [2024-12-01 22:59:30,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:30,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:30,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:30,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639800268] [2024-12-01 22:59:30,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639800268] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:30,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702857603] [2024-12-01 22:59:30,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:30,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:30,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:30,507 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:30,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-01 22:59:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:30,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-01 22:59:30,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:30,689 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:30,689 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:30,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702857603] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:30,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:30,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-12-01 22:59:30,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492377128] [2024-12-01 22:59:30,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:30,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 22:59:30,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:30,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 22:59:30,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-12-01 22:59:30,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-12-01 22:59:30,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 178 transitions, 915 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-12-01 22:59:30,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:30,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-12-01 22:59:30,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:32,540 INFO L124 PetriNetUnfolderBase]: 9689/19776 cut-off events. [2024-12-01 22:59:32,540 INFO L125 PetriNetUnfolderBase]: For 33572/34308 co-relation queries the response was YES. [2024-12-01 22:59:32,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54389 conditions, 19776 events. 9689/19776 cut-off events. For 33572/34308 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 174908 event pairs, 5011 based on Foata normal form. 820/20243 useless extension candidates. Maximal degree in co-relation 54219. Up to 9873 conditions per place. [2024-12-01 22:59:32,685 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 167 selfloop transitions, 4 changer transitions 0/228 dead transitions. [2024-12-01 22:59:32,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 228 transitions, 1512 flow [2024-12-01 22:59:32,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 22:59:32,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-01 22:59:32,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-12-01 22:59:32,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7258382642998028 [2024-12-01 22:59:32,686 INFO L175 Difference]: Start difference. First operand has 199 places, 178 transitions, 915 flow. Second operand 3 states and 368 transitions. [2024-12-01 22:59:32,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 228 transitions, 1512 flow [2024-12-01 22:59:32,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 228 transitions, 1496 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-01 22:59:32,934 INFO L231 Difference]: Finished difference. Result has 197 places, 177 transitions, 913 flow [2024-12-01 22:59:32,935 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=913, PETRI_PLACES=197, PETRI_TRANSITIONS=177} [2024-12-01 22:59:32,935 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 50 predicate places. [2024-12-01 22:59:32,935 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 177 transitions, 913 flow [2024-12-01 22:59:32,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-12-01 22:59:32,935 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:32,935 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:32,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-01 22:59:33,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:33,136 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:33,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:33,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1751478070, now seen corresponding path program 1 times [2024-12-01 22:59:33,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:33,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24745696] [2024-12-01 22:59:33,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:33,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:33,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:33,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24745696] [2024-12-01 22:59:33,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24745696] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:33,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295807570] [2024-12-01 22:59:33,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:33,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:33,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:33,229 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:33,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-01 22:59:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:33,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 22:59:33,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:33,478 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:33,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:33,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295807570] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:33,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:33,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-12-01 22:59:33,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585831554] [2024-12-01 22:59:33,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:33,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:33,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:33,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:33,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 22:59:33,501 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-12-01 22:59:33,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 177 transitions, 913 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2024-12-01 22:59:33,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:33,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-12-01 22:59:33,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:35,438 INFO L124 PetriNetUnfolderBase]: 9689/20276 cut-off events. [2024-12-01 22:59:35,438 INFO L125 PetriNetUnfolderBase]: For 34393/34915 co-relation queries the response was YES. [2024-12-01 22:59:35,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55967 conditions, 20276 events. 9689/20276 cut-off events. For 34393/34915 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 182433 event pairs, 6395 based on Foata normal form. 582/20710 useless extension candidates. Maximal degree in co-relation 55799. Up to 12804 conditions per place. [2024-12-01 22:59:35,584 INFO L140 encePairwiseOnDemand]: 165/169 looper letters, 163 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2024-12-01 22:59:35,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 224 transitions, 1490 flow [2024-12-01 22:59:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:35,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2024-12-01 22:59:35,585 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6331360946745562 [2024-12-01 22:59:35,585 INFO L175 Difference]: Start difference. First operand has 197 places, 177 transitions, 913 flow. Second operand 4 states and 428 transitions. [2024-12-01 22:59:35,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 224 transitions, 1490 flow [2024-12-01 22:59:35,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 224 transitions, 1482 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-01 22:59:35,923 INFO L231 Difference]: Finished difference. Result has 198 places, 176 transitions, 913 flow [2024-12-01 22:59:35,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=903, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=913, PETRI_PLACES=198, PETRI_TRANSITIONS=176} [2024-12-01 22:59:35,924 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2024-12-01 22:59:35,924 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 176 transitions, 913 flow [2024-12-01 22:59:35,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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) [2024-12-01 22:59:35,924 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:35,924 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:35,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-01 22:59:36,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:36,125 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:36,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash -566108087, now seen corresponding path program 1 times [2024-12-01 22:59:36,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:36,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342938975] [2024-12-01 22:59:36,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:36,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:36,190 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:36,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:36,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342938975] [2024-12-01 22:59:36,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342938975] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:36,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:36,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:59:36,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759201408] [2024-12-01 22:59:36,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:36,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:36,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:36,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:36,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:59:36,201 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:59:36,202 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 176 transitions, 913 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-12-01 22:59:36,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:36,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:59:36,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:38,109 INFO L124 PetriNetUnfolderBase]: 9683/19500 cut-off events. [2024-12-01 22:59:38,109 INFO L125 PetriNetUnfolderBase]: For 35247/36012 co-relation queries the response was YES. [2024-12-01 22:59:38,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54107 conditions, 19500 events. 9683/19500 cut-off events. For 35247/36012 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 171669 event pairs, 4996 based on Foata normal form. 768/20109 useless extension candidates. Maximal degree in co-relation 53937. Up to 9840 conditions per place. [2024-12-01 22:59:38,271 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 215 selfloop transitions, 6 changer transitions 0/276 dead transitions. [2024-12-01 22:59:38,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 276 transitions, 1848 flow [2024-12-01 22:59:38,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:38,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 479 transitions. [2024-12-01 22:59:38,272 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7085798816568047 [2024-12-01 22:59:38,272 INFO L175 Difference]: Start difference. First operand has 198 places, 176 transitions, 913 flow. Second operand 4 states and 479 transitions. [2024-12-01 22:59:38,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 276 transitions, 1848 flow [2024-12-01 22:59:38,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 276 transitions, 1836 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-01 22:59:38,501 INFO L231 Difference]: Finished difference. Result has 196 places, 175 transitions, 909 flow [2024-12-01 22:59:38,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=909, PETRI_PLACES=196, PETRI_TRANSITIONS=175} [2024-12-01 22:59:38,501 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 49 predicate places. [2024-12-01 22:59:38,501 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 175 transitions, 909 flow [2024-12-01 22:59:38,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-12-01 22:59:38,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:38,502 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:38,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-12-01 22:59:38,502 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:38,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:38,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1538755367, now seen corresponding path program 1 times [2024-12-01 22:59:38,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:38,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986685558] [2024-12-01 22:59:38,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:38,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:38,587 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:38,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:38,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986685558] [2024-12-01 22:59:38,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986685558] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:38,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042230619] [2024-12-01 22:59:38,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:38,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:38,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:38,589 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:38,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-01 22:59:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:38,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 22:59:38,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:38,860 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:38,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:38,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042230619] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:38,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:38,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-12-01 22:59:38,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643616498] [2024-12-01 22:59:38,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:38,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:59:38,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:38,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:59:38,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-01 22:59:38,919 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:59:38,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 175 transitions, 909 flow. Second operand has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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) [2024-12-01 22:59:38,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:38,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:59:38,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:41,108 INFO L124 PetriNetUnfolderBase]: 10023/20594 cut-off events. [2024-12-01 22:59:41,109 INFO L125 PetriNetUnfolderBase]: For 35630/36036 co-relation queries the response was YES. [2024-12-01 22:59:41,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57065 conditions, 20594 events. 10023/20594 cut-off events. For 35630/36036 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 182107 event pairs, 6995 based on Foata normal form. 576/20972 useless extension candidates. Maximal degree in co-relation 56897. Up to 13892 conditions per place. [2024-12-01 22:59:41,221 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 260 selfloop transitions, 7 changer transitions 0/318 dead transitions. [2024-12-01 22:59:41,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 318 transitions, 2161 flow [2024-12-01 22:59:41,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 22:59:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 22:59:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 637 transitions. [2024-12-01 22:59:41,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2024-12-01 22:59:41,222 INFO L175 Difference]: Start difference. First operand has 196 places, 175 transitions, 909 flow. Second operand 6 states and 637 transitions. [2024-12-01 22:59:41,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 318 transitions, 2161 flow [2024-12-01 22:59:41,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 318 transitions, 2119 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-12-01 22:59:41,473 INFO L231 Difference]: Finished difference. Result has 193 places, 173 transitions, 867 flow [2024-12-01 22:59:41,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=853, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=867, PETRI_PLACES=193, PETRI_TRANSITIONS=173} [2024-12-01 22:59:41,474 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 46 predicate places. [2024-12-01 22:59:41,474 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 173 transitions, 867 flow [2024-12-01 22:59:41,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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) [2024-12-01 22:59:41,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:41,474 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:41,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-01 22:59:41,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-01 22:59:41,675 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:41,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:41,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1756276121, now seen corresponding path program 1 times [2024-12-01 22:59:41,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:41,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229320555] [2024-12-01 22:59:41,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:41,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:41,798 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:41,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:41,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229320555] [2024-12-01 22:59:41,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229320555] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:41,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566635996] [2024-12-01 22:59:41,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:41,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:41,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:41,800 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:41,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-01 22:59:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:41,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 22:59:41,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:42,018 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:42,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566635996] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:42,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:42,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-12-01 22:59:42,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858054747] [2024-12-01 22:59:42,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:42,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:42,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:42,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:42,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 22:59:42,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:59:42,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 173 transitions, 867 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-12-01 22:59:42,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:42,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:59:42,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:43,834 INFO L124 PetriNetUnfolderBase]: 9861/19948 cut-off events. [2024-12-01 22:59:43,835 INFO L125 PetriNetUnfolderBase]: For 29319/29893 co-relation queries the response was YES. [2024-12-01 22:59:43,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54069 conditions, 19948 events. 9861/19948 cut-off events. For 29319/29893 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 174059 event pairs, 6075 based on Foata normal form. 554/20326 useless extension candidates. Maximal degree in co-relation 53903. Up to 12220 conditions per place. [2024-12-01 22:59:43,978 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 161 selfloop transitions, 7 changer transitions 0/219 dead transitions. [2024-12-01 22:59:43,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 219 transitions, 1432 flow [2024-12-01 22:59:43,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:43,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2024-12-01 22:59:43,979 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6479289940828402 [2024-12-01 22:59:43,979 INFO L175 Difference]: Start difference. First operand has 193 places, 173 transitions, 867 flow. Second operand 4 states and 438 transitions. [2024-12-01 22:59:43,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 219 transitions, 1432 flow [2024-12-01 22:59:44,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 219 transitions, 1417 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-01 22:59:44,224 INFO L231 Difference]: Finished difference. Result has 192 places, 172 transitions, 870 flow [2024-12-01 22:59:44,224 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=870, PETRI_PLACES=192, PETRI_TRANSITIONS=172} [2024-12-01 22:59:44,224 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 45 predicate places. [2024-12-01 22:59:44,224 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 172 transitions, 870 flow [2024-12-01 22:59:44,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-12-01 22:59:44,225 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:44,225 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:44,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-01 22:59:44,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-12-01 22:59:44,425 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:44,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:44,426 INFO L85 PathProgramCache]: Analyzing trace with hash 456777839, now seen corresponding path program 1 times [2024-12-01 22:59:44,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:44,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219585164] [2024-12-01 22:59:44,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:44,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:44,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:44,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219585164] [2024-12-01 22:59:44,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219585164] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:44,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632079597] [2024-12-01 22:59:44,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:44,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:44,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:44,544 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:44,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-01 22:59:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:44,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 22:59:44,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:44,803 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:44,803 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:44,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632079597] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:44,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:44,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-12-01 22:59:44,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984535438] [2024-12-01 22:59:44,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:44,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 22:59:44,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:44,804 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 22:59:44,804 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-01 22:59:44,869 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:59:44,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 172 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2024-12-01 22:59:44,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:44,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:59:44,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:46,891 INFO L124 PetriNetUnfolderBase]: 10367/20690 cut-off events. [2024-12-01 22:59:46,892 INFO L125 PetriNetUnfolderBase]: For 32003/32406 co-relation queries the response was YES. [2024-12-01 22:59:46,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56579 conditions, 20690 events. 10367/20690 cut-off events. For 32003/32406 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 178420 event pairs, 6695 based on Foata normal form. 553/21069 useless extension candidates. Maximal degree in co-relation 56413. Up to 13348 conditions per place. [2024-12-01 22:59:47,026 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 216 selfloop transitions, 10 changer transitions 88/363 dead transitions. [2024-12-01 22:59:47,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 363 transitions, 2514 flow [2024-12-01 22:59:47,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 22:59:47,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-01 22:59:47,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 746 transitions. [2024-12-01 22:59:47,027 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6306001690617076 [2024-12-01 22:59:47,027 INFO L175 Difference]: Start difference. First operand has 192 places, 172 transitions, 870 flow. Second operand 7 states and 746 transitions. [2024-12-01 22:59:47,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 363 transitions, 2514 flow [2024-12-01 22:59:47,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 363 transitions, 2480 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-12-01 22:59:47,272 INFO L231 Difference]: Finished difference. Result has 194 places, 171 transitions, 876 flow [2024-12-01 22:59:47,272 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=876, PETRI_PLACES=194, PETRI_TRANSITIONS=171} [2024-12-01 22:59:47,272 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 47 predicate places. [2024-12-01 22:59:47,272 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 171 transitions, 876 flow [2024-12-01 22:59:47,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2024-12-01 22:59:47,273 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:47,273 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:47,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-01 22:59:47,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-12-01 22:59:47,473 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:47,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:47,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1389985098, now seen corresponding path program 1 times [2024-12-01 22:59:47,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:47,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797480829] [2024-12-01 22:59:47,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:47,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:47,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:47,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797480829] [2024-12-01 22:59:47,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797480829] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:47,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429043677] [2024-12-01 22:59:47,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:47,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:47,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:47,554 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:47,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-01 22:59:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:47,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-01 22:59:47,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:47,788 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:47,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:47,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429043677] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:47,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:47,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-12-01 22:59:47,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123425622] [2024-12-01 22:59:47,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:47,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:47,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:47,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:47,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-12-01 22:59:47,812 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-12-01 22:59:47,812 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 171 transitions, 876 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2024-12-01 22:59:47,812 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:47,812 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-12-01 22:59:47,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:49,535 INFO L124 PetriNetUnfolderBase]: 9689/19576 cut-off events. [2024-12-01 22:59:49,535 INFO L125 PetriNetUnfolderBase]: For 33223/33765 co-relation queries the response was YES. [2024-12-01 22:59:49,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53756 conditions, 19576 events. 9689/19576 cut-off events. For 33223/33765 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 170193 event pairs, 6379 based on Foata normal form. 632/20026 useless extension candidates. Maximal degree in co-relation 53591. Up to 12772 conditions per place. [2024-12-01 22:59:49,672 INFO L140 encePairwiseOnDemand]: 165/169 looper letters, 162 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2024-12-01 22:59:49,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 217 transitions, 1443 flow [2024-12-01 22:59:49,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:49,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:49,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-12-01 22:59:49,673 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2024-12-01 22:59:49,673 INFO L175 Difference]: Start difference. First operand has 194 places, 171 transitions, 876 flow. Second operand 4 states and 427 transitions. [2024-12-01 22:59:49,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 217 transitions, 1443 flow [2024-12-01 22:59:49,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 217 transitions, 1400 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-12-01 22:59:49,894 INFO L231 Difference]: Finished difference. Result has 191 places, 170 transitions, 857 flow [2024-12-01 22:59:49,894 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=857, PETRI_PLACES=191, PETRI_TRANSITIONS=170} [2024-12-01 22:59:49,894 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 44 predicate places. [2024-12-01 22:59:49,894 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 170 transitions, 857 flow [2024-12-01 22:59:49,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2024-12-01 22:59:49,894 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:49,894 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:49,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-01 22:59:50,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-01 22:59:50,095 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:50,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:50,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1720565527, now seen corresponding path program 1 times [2024-12-01 22:59:50,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:50,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015176430] [2024-12-01 22:59:50,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:50,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:50,160 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:50,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:50,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015176430] [2024-12-01 22:59:50,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015176430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:50,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 22:59:50,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 22:59:50,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316600268] [2024-12-01 22:59:50,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:50,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 22:59:50,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:50,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 22:59:50,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 22:59:50,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-12-01 22:59:50,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 170 transitions, 857 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2024-12-01 22:59:50,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:50,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-12-01 22:59:50,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:51,947 INFO L124 PetriNetUnfolderBase]: 9689/19204 cut-off events. [2024-12-01 22:59:51,947 INFO L125 PetriNetUnfolderBase]: For 32308/32954 co-relation queries the response was YES. [2024-12-01 22:59:52,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52003 conditions, 19204 events. 9689/19204 cut-off events. For 32308/32954 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 164347 event pairs, 5011 based on Foata normal form. 716/19775 useless extension candidates. Maximal degree in co-relation 51839. Up to 9873 conditions per place. [2024-12-01 22:59:52,076 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 212 selfloop transitions, 6 changer transitions 0/267 dead transitions. [2024-12-01 22:59:52,076 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 267 transitions, 1735 flow [2024-12-01 22:59:52,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 22:59:52,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-01 22:59:52,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2024-12-01 22:59:52,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7041420118343196 [2024-12-01 22:59:52,077 INFO L175 Difference]: Start difference. First operand has 191 places, 170 transitions, 857 flow. Second operand 4 states and 476 transitions. [2024-12-01 22:59:52,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 267 transitions, 1735 flow [2024-12-01 22:59:52,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 267 transitions, 1723 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-01 22:59:52,273 INFO L231 Difference]: Finished difference. Result has 189 places, 169 transitions, 853 flow [2024-12-01 22:59:52,274 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=853, PETRI_PLACES=189, PETRI_TRANSITIONS=169} [2024-12-01 22:59:52,274 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 42 predicate places. [2024-12-01 22:59:52,274 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 169 transitions, 853 flow [2024-12-01 22:59:52,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2024-12-01 22:59:52,274 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:52,274 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:52,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-12-01 22:59:52,274 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:52,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:52,275 INFO L85 PathProgramCache]: Analyzing trace with hash 139865839, now seen corresponding path program 1 times [2024-12-01 22:59:52,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:52,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95364971] [2024-12-01 22:59:52,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:52,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:52,353 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:52,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:52,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95364971] [2024-12-01 22:59:52,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95364971] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:52,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8298992] [2024-12-01 22:59:52,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:52,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:52,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:52,355 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:52,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-01 22:59:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:52,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 22:59:52,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:52,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:52,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8298992] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:52,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:52,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-12-01 22:59:52,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752971763] [2024-12-01 22:59:52,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:52,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 22:59:52,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:52,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 22:59:52,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-12-01 22:59:52,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:59:52,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 169 transitions, 853 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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) [2024-12-01 22:59:52,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:52,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:59:52,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:54,662 INFO L124 PetriNetUnfolderBase]: 10033/19810 cut-off events. [2024-12-01 22:59:54,662 INFO L125 PetriNetUnfolderBase]: For 31971/32441 co-relation queries the response was YES. [2024-12-01 22:59:54,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53615 conditions, 19810 events. 10033/19810 cut-off events. For 31971/32441 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 168647 event pairs, 6987 based on Foata normal form. 666/20311 useless extension candidates. Maximal degree in co-relation 53453. Up to 13876 conditions per place. [2024-12-01 22:59:54,754 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 257 selfloop transitions, 7 changer transitions 0/309 dead transitions. [2024-12-01 22:59:54,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 309 transitions, 2027 flow [2024-12-01 22:59:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 22:59:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-01 22:59:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 634 transitions. [2024-12-01 22:59:54,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6252465483234714 [2024-12-01 22:59:54,755 INFO L175 Difference]: Start difference. First operand has 189 places, 169 transitions, 853 flow. Second operand 6 states and 634 transitions. [2024-12-01 22:59:54,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 309 transitions, 2027 flow [2024-12-01 22:59:54,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 309 transitions, 1985 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-12-01 22:59:54,905 INFO L231 Difference]: Finished difference. Result has 186 places, 167 transitions, 811 flow [2024-12-01 22:59:54,906 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=811, PETRI_PLACES=186, PETRI_TRANSITIONS=167} [2024-12-01 22:59:54,906 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 39 predicate places. [2024-12-01 22:59:54,906 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 167 transitions, 811 flow [2024-12-01 22:59:54,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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) [2024-12-01 22:59:54,906 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-01 22:59:54,906 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:54,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-01 22:59:55,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-12-01 22:59:55,107 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-12-01 22:59:55,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 22:59:55,107 INFO L85 PathProgramCache]: Analyzing trace with hash 40875503, now seen corresponding path program 1 times [2024-12-01 22:59:55,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 22:59:55,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041105369] [2024-12-01 22:59:55,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:55,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 22:59:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-12-01 22:59:55,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 22:59:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041105369] [2024-12-01 22:59:55,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041105369] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-01 22:59:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894917997] [2024-12-01 22:59:55,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 22:59:55,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:55,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 22:59:55,216 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 22:59:55,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-01 22:59:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 22:59:55,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-01 22:59:55,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 22:59:55,476 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-01 22:59:55,476 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 22:59:55,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894917997] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 22:59:55,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-01 22:59:55,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-12-01 22:59:55,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306121922] [2024-12-01 22:59:55,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 22:59:55,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 22:59:55,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 22:59:55,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 22:59:55,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-12-01 22:59:55,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-12-01 22:59:55,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 167 transitions, 811 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2024-12-01 22:59:55,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-01 22:59:55,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-12-01 22:59:55,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-01 22:59:57,499 INFO L124 PetriNetUnfolderBase]: 10377/19948 cut-off events. [2024-12-01 22:59:57,499 INFO L125 PetriNetUnfolderBase]: For 26095/26571 co-relation queries the response was YES. [2024-12-01 22:59:57,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52785 conditions, 19948 events. 10377/19948 cut-off events. For 26095/26571 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 166015 event pairs, 6683 based on Foata normal form. 666/20448 useless extension candidates. Maximal degree in co-relation 52625. Up to 13324 conditions per place. [2024-12-01 22:59:57,602 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 0 selfloop transitions, 0 changer transitions 354/354 dead transitions. [2024-12-01 22:59:57,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 354 transitions, 2303 flow [2024-12-01 22:59:57,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-01 22:59:57,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-12-01 22:59:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 742 transitions. [2024-12-01 22:59:57,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6272189349112426 [2024-12-01 22:59:57,603 INFO L175 Difference]: Start difference. First operand has 186 places, 167 transitions, 811 flow. Second operand 7 states and 742 transitions. [2024-12-01 22:59:57,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 354 transitions, 2303 flow [2024-12-01 22:59:57,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 354 transitions, 2292 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-12-01 22:59:57,749 INFO L231 Difference]: Finished difference. Result has 187 places, 0 transitions, 0 flow [2024-12-01 22:59:57,749 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=187, PETRI_TRANSITIONS=0} [2024-12-01 22:59:57,750 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 40 predicate places. [2024-12-01 22:59:57,750 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 0 transitions, 0 flow [2024-12-01 22:59:57,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2024-12-01 22:59:57,751 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 80 remaining) [2024-12-01 22:59:57,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 80 remaining) [2024-12-01 22:59:57,753 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 80 remaining) [2024-12-01 22:59:57,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 80 remaining) [2024-12-01 22:59:57,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-01 22:59:57,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 22:59:57,955 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 22:59:57,959 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-12-01 22:59:57,959 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 22:59:57,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:59:57 BasicIcfg [2024-12-01 22:59:57,964 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 22:59:57,965 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 22:59:57,965 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 22:59:57,965 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 22:59:57,965 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:58:21" (3/4) ... [2024-12-01 22:59:57,966 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-01 22:59:57,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-12-01 22:59:57,968 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-12-01 22:59:57,973 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 158 nodes and edges [2024-12-01 22:59:57,973 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-12-01 22:59:57,974 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-01 22:59:57,974 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-01 22:59:58,035 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-01 22:59:58,035 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-01 22:59:58,035 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 22:59:58,036 INFO L158 Benchmark]: Toolchain (without parser) took 97826.15ms. Allocated memory was 117.4MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 93.0MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-12-01 22:59:58,036 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 22:59:58,037 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.12ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.2MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-01 22:59:58,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.80ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 75.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 22:59:58,037 INFO L158 Benchmark]: Boogie Preprocessor took 53.53ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 72.1MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 22:59:58,038 INFO L158 Benchmark]: RCFGBuilder took 1287.21ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 35.7MB in the end (delta: 36.3MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2024-12-01 22:59:58,038 INFO L158 Benchmark]: TraceAbstraction took 96108.82ms. Allocated memory was 117.4MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 35.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-12-01 22:59:58,038 INFO L158 Benchmark]: Witness Printer took 70.83ms. Allocated memory is still 3.6GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-01 22:59:58,040 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.12ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.2MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.80ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 75.9MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.53ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 72.1MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1287.21ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 35.7MB in the end (delta: 36.3MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * TraceAbstraction took 96108.82ms. Allocated memory was 117.4MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 35.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. * Witness Printer took 70.83ms. Allocated memory is still 3.6GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 268 locations, 80 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 95.9s, OverallIterations: 41, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 84.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5695 SdHoareTripleChecker+Valid, 10.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4928 mSDsluCounter, 640 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 364 mSDsCounter, 396 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14674 IncrementalHoareTripleChecker+Invalid, 15070 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 396 mSolverCounterUnsat, 276 mSDtfsCounter, 14674 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 967 GetRequests, 733 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=939occurred in iteration=27, InterpolantAutomatonStates: 203, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2331 NumberOfCodeBlocks, 2259 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 2339 ConstructedInterpolants, 0 QuantifiedInterpolants, 5639 SizeOfPredicates, 36 NumberOfNonLiveVariables, 4437 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 62 InterpolantComputations, 37 PerfectInterpolantSequences, 3189/3291 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-12-01 22:59:58,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_189d78a7-456c-4148-97a8-fd3741144b22/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE