./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-commit-2.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_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB --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 ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:47:36,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:47:36,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:47:36,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:47:36,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:47:36,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:47:36,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:47:36,541 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:47:36,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:47:36,542 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:47:36,542 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:47:36,542 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:47:36,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:47:36,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:47:36,543 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:47:36,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:47:36,544 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:47:36,544 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:47:36,544 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:47:36,544 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:47:36,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:47:36,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:47:36,545 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:47:36,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:47:36,545 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:47:36,545 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:47:36,545 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:47:36,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:47:36,545 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:47:36,546 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:47:36,546 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:47:36,546 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:36,546 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:36,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:36,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:36,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:47:36,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:36,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:36,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:36,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:36,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:47:36,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:47:36,548 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:47:36,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:47:36,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:47:36,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:47:36,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:47:36,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:47:36,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:47:36,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:47:36,549 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_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ec2334e7e9ec2636c6abf161aed91fff94fbff3709d38c7edad92256c3b5dc81 [2024-11-28 04:47:36,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:47:36,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:47:36,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:47:36,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:47:36,903 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:47:36,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2024-11-28 04:47:40,301 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/data/4a8e9c74b/bf936e38bfe74255b32c3b4af8fdb6d4/FLAG5c259c8c4 [2024-11-28 04:47:40,656 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:47:40,657 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/sv-benchmarks/c/weaver/popl20-commit-2.wvr.c [2024-11-28 04:47:40,666 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/data/4a8e9c74b/bf936e38bfe74255b32c3b4af8fdb6d4/FLAG5c259c8c4 [2024-11-28 04:47:40,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/data/4a8e9c74b/bf936e38bfe74255b32c3b4af8fdb6d4 [2024-11-28 04:47:40,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:47:40,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:47:40,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:40,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:47:40,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:47:40,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:40" (1/1) ... [2024-11-28 04:47:40,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5b2b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:40, skipping insertion in model container [2024-11-28 04:47:40,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:40" (1/1) ... [2024-11-28 04:47:40,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:47:41,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:41,026 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:47:41,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:41,092 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:47:41,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41 WrapperNode [2024-11-28 04:47:41,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:41,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:41,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:47:41,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:47:41,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,110 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,156 INFO L138 Inliner]: procedures = 25, calls = 74, calls flagged for inlining = 28, calls inlined = 34, statements flattened = 487 [2024-11-28 04:47:41,157 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:41,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:47:41,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:47:41,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:47:41,170 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,199 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-28 04:47:41,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,216 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,218 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,227 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,229 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,234 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:47:41,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:47:41,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:47:41,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:47:41,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (1/1) ... [2024-11-28 04:47:41,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:41,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:41,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:47:41,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:47:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:47:41,315 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 04:47:41,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 04:47:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 04:47:41,316 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 04:47:41,316 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 04:47:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 04:47:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-28 04:47:41,317 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-28 04:47:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:47:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 04:47:41,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 04:47:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 04:47:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 04:47:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 04:47:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 04:47:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:47:41,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:47:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 04:47:41,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 04:47:41,322 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 04:47:41,520 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:47:41,522 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:47:42,605 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 04:47:42,605 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:47:43,595 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:47:43,596 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-28 04:47:43,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:43 BoogieIcfgContainer [2024-11-28 04:47:43,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:47:43,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:47:43,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:47:43,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:47:43,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:47:40" (1/3) ... [2024-11-28 04:47:43,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d13a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:43, skipping insertion in model container [2024-11-28 04:47:43,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:41" (2/3) ... [2024-11-28 04:47:43,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27d13a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:43, skipping insertion in model container [2024-11-28 04:47:43,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:43" (3/3) ... [2024-11-28 04:47:43,609 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2024-11-28 04:47:43,629 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:47:43,631 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-commit-2.wvr.c that has 5 procedures, 91 locations, 1 initial locations, 8 loop locations, and 32 error locations. [2024-11-28 04:47:43,632 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 04:47:43,920 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-28 04:47:43,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 102 transitions, 232 flow [2024-11-28 04:47:44,053 INFO L124 PetriNetUnfolderBase]: 12/98 cut-off events. [2024-11-28 04:47:44,057 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 04:47:44,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 98 events. 12/98 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 323 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2024-11-28 04:47:44,066 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 102 transitions, 232 flow [2024-11-28 04:47:44,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 96 transitions, 213 flow [2024-11-28 04:47:44,091 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:47:44,114 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;@2d93bcce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:47:44,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-28 04:47:44,121 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 04:47:44,121 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-28 04:47:44,122 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 04:47:44,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:47:44,123 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 04:47:44,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-28 04:47:44,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1470300, now seen corresponding path program 1 times [2024-11-28 04:47:44,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:44,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007468812] [2024-11-28 04:47:44,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:44,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:44,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:44,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007468812] [2024-11-28 04:47:44,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007468812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:44,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:44,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:44,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030209972] [2024-11-28 04:47:44,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:44,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:44,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:44,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:44,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:44,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2024-11-28 04:47:44,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 96 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:44,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:47:44,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2024-11-28 04:47:44,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:48:00,755 INFO L124 PetriNetUnfolderBase]: 97521/126253 cut-off events. [2024-11-28 04:48:00,755 INFO L125 PetriNetUnfolderBase]: For 3722/3722 co-relation queries the response was YES. [2024-11-28 04:48:00,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256314 conditions, 126253 events. 97521/126253 cut-off events. For 3722/3722 co-relation queries the response was YES. Maximal size of possible extension queue 3969. Compared 733884 event pairs, 86703 based on Foata normal form. 4/87293 useless extension candidates. Maximal degree in co-relation 249057. Up to 126130 conditions per place. [2024-11-28 04:48:01,532 INFO L140 encePairwiseOnDemand]: 65/102 looper letters, 71 selfloop transitions, 13 changer transitions 0/92 dead transitions. [2024-11-28 04:48:01,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 92 transitions, 373 flow [2024-11-28 04:48:01,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:48:01,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 04:48:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 156 transitions. [2024-11-28 04:48:01,553 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38235294117647056 [2024-11-28 04:48:01,556 INFO L175 Difference]: Start difference. First operand has 97 places, 96 transitions, 213 flow. Second operand 4 states and 156 transitions. [2024-11-28 04:48:01,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 92 transitions, 373 flow [2024-11-28 04:48:01,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 92 transitions, 360 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-28 04:48:01,642 INFO L231 Difference]: Finished difference. Result has 84 places, 92 transitions, 284 flow [2024-11-28 04:48:01,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=284, PETRI_PLACES=84, PETRI_TRANSITIONS=92} [2024-11-28 04:48:01,651 INFO L279 CegarLoopForPetriNet]: 97 programPoint places, -13 predicate places. [2024-11-28 04:48:01,651 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 92 transitions, 284 flow [2024-11-28 04:48:01,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:01,652 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:48:01,653 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-28 04:48:01,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:48:01,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-28 04:48:01,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:01,655 INFO L85 PathProgramCache]: Analyzing trace with hash 853520016, now seen corresponding path program 1 times [2024-11-28 04:48:01,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:48:01,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230648538] [2024-11-28 04:48:01,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:01,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:01,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:48:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230648538] [2024-11-28 04:48:01,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230648538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878180271] [2024-11-28 04:48:01,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:01,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:01,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:01,956 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:01,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:48:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:02,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:48:02,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:02,199 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:02,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878180271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:02,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:02,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-28 04:48:02,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586098666] [2024-11-28 04:48:02,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:02,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:48:02,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:48:02,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:48:02,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:48:02,265 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2024-11-28 04:48:02,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 92 transitions, 284 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:02,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:48:02,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2024-11-28 04:48:02,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 04:48:15,824 INFO L124 PetriNetUnfolderBase]: 97521/126249 cut-off events. [2024-11-28 04:48:15,824 INFO L125 PetriNetUnfolderBase]: For 720/720 co-relation queries the response was YES. [2024-11-28 04:48:16,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255357 conditions, 126249 events. 97521/126249 cut-off events. For 720/720 co-relation queries the response was YES. Maximal size of possible extension queue 3969. Compared 733815 event pairs, 86703 based on Foata normal form. 4/87296 useless extension candidates. Maximal degree in co-relation 255261. Up to 126110 conditions per place. [2024-11-28 04:48:16,613 INFO L140 encePairwiseOnDemand]: 85/102 looper letters, 58 selfloop transitions, 22 changer transitions 0/88 dead transitions. [2024-11-28 04:48:16,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 88 transitions, 428 flow [2024-11-28 04:48:16,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:48:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 04:48:16,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 156 transitions. [2024-11-28 04:48:16,617 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2549019607843137 [2024-11-28 04:48:16,618 INFO L175 Difference]: Start difference. First operand has 84 places, 92 transitions, 284 flow. Second operand 6 states and 156 transitions. [2024-11-28 04:48:16,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 88 transitions, 428 flow [2024-11-28 04:48:16,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 88 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 04:48:16,625 INFO L231 Difference]: Finished difference. Result has 85 places, 88 transitions, 312 flow [2024-11-28 04:48:16,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=102, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=312, PETRI_PLACES=85, PETRI_TRANSITIONS=88} [2024-11-28 04:48:16,628 INFO L279 CegarLoopForPetriNet]: 97 programPoint places, -12 predicate places. [2024-11-28 04:48:16,629 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 88 transitions, 312 flow [2024-11-28 04:48:16,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:16,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 04:48:16,630 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-28 04:48:16,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:48:16,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:16,835 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-28 04:48:16,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:16,835 INFO L85 PathProgramCache]: Analyzing trace with hash 689318217, now seen corresponding path program 1 times [2024-11-28 04:48:16,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:48:16,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033189279] [2024-11-28 04:48:16,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:16,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:17,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:17,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:48:17,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033189279] [2024-11-28 04:48:17,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033189279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:17,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128457560] [2024-11-28 04:48:17,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:17,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:17,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:17,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:17,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1ca9cf7-cf8a-4317-8f6b-4f23f2fe044f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:48:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:17,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:48:17,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:17,293 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:17,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:17,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:48:17,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128457560] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:48:17,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:48:17,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 04:48:17,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961303946] [2024-11-28 04:48:17,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:17,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:48:17,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:48:17,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:48:17,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:48:17,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 102 [2024-11-28 04:48:17,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 88 transitions, 312 flow. Second operand has 12 states, 12 states have (on average 13.083333333333334) internal successors, (157), 12 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:48:17,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 04:48:17,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 102 [2024-11-28 04:48:17,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand